Asus P5LD2 SE User Manual

P5LD2 SE  
Contents  
Notices................................................................................................vii  
Safety information .............................................................................viii  
About this guide.................................................................................. ix  
P5LD2 SE specifications summary ...................................................... xi  
Chapter 1: Product introduction  
1.1  
1.2  
1.3  
Welcome!.............................................................................. 1-1  
Package contents ................................................................. 1-1  
Special features.................................................................... 1-2  
1.3.1  
1.3.2  
1.3.3  
Product highlights................................................... 1-2  
ASUS AI Lifestyle features ..................................... 1-5  
Innovative ASUS features ....................................... 1-5  
Chapter 2: Hardware information  
2.1  
2.2  
Before you proceed .............................................................. 2-1  
Motherboard overview.......................................................... 2-2  
2.2.1  
2.2.2  
2.2.3  
2.2.4  
Placement direction ................................................ 2-2  
Screw holes............................................................. 2-2  
Motherboard layout ................................................ 2-3  
Layout contents ..................................................... 2-5  
2.3  
2.4  
Central Processing Unit (CPU) .............................................. 2-7  
2.3.1  
2.3.2  
2.3.3  
Installing the CPU.................................................... 2-8  
Installing the CPU heatsink and fan.......................2-10  
Uninstalling the CPU heatsink and fan...................2-12  
System memory.................................................................. 2-14  
2.4.1  
2.4.2  
2.4.3  
2.4.4  
Overview............................................................... 2-14  
Memory configurations .........................................2-14  
Installing a DIMM ...................................................2-17  
Removing a DIMM..................................................2-17  
2.5  
Expansion slots................................................................... 2-18  
2.5.1  
2.5.2  
2.5.3  
2.5.4  
2.5.5  
2.5.6  
Installing an expansion card..................................2-18  
Configuring an expansion card..............................2-18  
Interrupt assignments...........................................2-19  
PCI slots................................................................ 2-20  
PCI Express x16 slot .............................................2-20  
PCI Express x1 slot ...............................................2-20  
2.6  
Jumpers .............................................................................. 2-21  
iii  
Contents  
2.7  
Connectors ......................................................................... 2-23  
2.7.1  
2.7.2  
Rear panel connectors ..........................................2-23  
Internal connectors...............................................2-25  
Chapter 3: Powering up  
3.1  
Starting up for the first time................................................ 3-1  
3.2  
Powering off the computer................................................... 3-2  
3.2.1  
3.2.2  
Using the OS shut down function ........................... 3-2  
Using the dual function power switch..................... 3-2  
Chapter 4: BIOS setup  
4.1  
4.2  
Managing and updating your BIOS ........................................ 4-1  
4.1.1  
4.1.2  
4.1.3  
4.1.4  
4.1.5  
Creating a bootable floppy disk.............................. 4-1  
AFUDOS utility ........................................................ 4-2  
ASUS CrashFree BIOS 2 utility ................................ 4-5  
ASUS EZ Flash utility............................................... 4-7  
ASUS Update utility ................................................ 4-8  
BIOS setup program............................................................ 4-11  
4.2.1  
4.2.2  
4.2.3  
4.2.4  
4.2.5  
4.2.6  
4.2.7  
4.2.8  
4.2.9  
BIOS menu screen.................................................4-12  
Menu bar............................................................... 4-12  
Navigation keys.....................................................4-12  
Menu items ........................................................... 4-13  
Sub-menu items....................................................4-13  
Configuration fields...............................................4-13  
Pop-up window......................................................4-13  
Scroll bar............................................................... 4-13  
General help..........................................................4-13  
4.3  
Main menu........................................................................... 4-14  
4.3.1  
4.3.2  
4.3.3  
4.3.4  
4.3.5  
4.3.6  
System Time ........................................................4-14  
System Date .......................................................4-14  
Legacy Diskette A ..............................................4-14  
Primary, Third and Fourth IDE Master/Slave .........4-15  
IDE Configuration ..................................................4-16  
System Information...............................................4-18  
4.4  
Advanced menu.................................................................. 4-19  
4.4.1 JumperFree Configuration.....................................4-19  
iv  
Contents  
4.4.2  
4.4.3  
4.4.4  
4.4.5  
4.4.6  
USB Configuration.................................................4-22  
CPU Configuration.................................................4-23  
Chipset.................................................................. 4-25  
Onboard Devices Configuration.............................4-27  
PCI PnP.................................................................. 4-28  
4.5  
Power menu........................................................................ 4-30  
4.5.1  
4.5.2  
4.5.3  
4.5.4  
4.5.5  
4.5.6  
Suspend Mode .....................................................4-30  
Repost Video on S3 Resume ...............................4-30  
ACPI 2.0 support...................................................4-30  
ACPI APIC support.................................................4-30  
APM Configuration ................................................4-31  
Hardware Monitor..................................................4-33  
4.6  
4.7  
Boot menu.......................................................................... 4-35  
4.6.1  
4.6.2  
4.6.3  
Boot Device Priority..............................................4-35  
Boot Settings Configuration ................................4-36  
Security................................................................. 4-37  
Exit menu............................................................................ 4-39  
Chapter 5: Software support  
5.1  
5.2  
Installing an operating system.............................................. 5-1  
Support CD information........................................................ 5-1  
5.2.1  
5.2.2  
5.2.3  
5.2.4  
5.2.5  
5.2.6  
Running the support CD.......................................... 5-1  
Drivers menu........................................................... 5-2  
Utilities menu.......................................................... 5-3  
Manuals menu ......................................................... 5-4  
ASUS Contact information...................................... 5-5  
Other information ................................................... 5-5  
5.3  
Software information............................................................ 5-8  
5.3.1  
ASUS MyLogo2..................................................... 5-8  
5.3.2  
Audio configurations ............................................5-10  
Appendix: CPU features  
A.1  
Intel® EM64T......................................................................... A-1  
Using the Intel® EM64T feature............................................A-1  
v
A.2  
A.3  
Enhanced Intel SpeedStep® Technology (EIST) ....................A-1  
A.2.1  
A.2.2  
System requirements..............................................A-1  
Using the EIST.........................................................A-2  
Intel® Hyper-Threading Technology......................................A-3  
Using the Hyper-Threading Technology ...............................A-3  
vi  
Notices  
Federal Communications Commission Statement  
This device complies with Part 15 of the FCC Rules. Operation is subject to  
the following two conditions:  
This device may not cause harmful interference, and  
This device must accept any interference received including  
interference that may cause undesired operation.  
This equipment has been tested and found to comply with the limits for a  
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits  
are designed to provide reasonable protection against harmful interference  
in a residential installation. This equipment generates, uses and can radiate  
radio frequency energy and, if not installed and used in accordance with  
manufacturer’s instructions, may cause harmful interference to radio  
communications. However, there is no guarantee that interference will  
not occur in a particular installation. If this equipment does cause harmful  
interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct  
the interference by one or more of the following measures:  
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment to an outlet on a circuit different from that to  
which the receiver is connected.  
Consult the dealer or an experienced radio/TV technician for help.  
The use of shielded cables for connection of the monitor to the graphics  
card is required to assure compliance with FCC regulations. Changes  
or modifications to this unit not expressly approved by the party  
responsible for compliance could void the user’s authority to operate  
this equipment.  
Canadian Department of Communications Statement  
This digital apparatus does not exceed the Class B limits for radio noise  
emissions from digital apparatus set out in the Radio Interference  
Regulations of the Canadian Department of Communications.  
This class B digital apparatus complies with Canadian  
ICES-003.  
vii  
Safety information  
Electrical safety  
To prevent electrical shock hazard, disconnect the power cable from  
the electrical outlet before relocating the system.  
When adding or removing devices to or from the system, ensure that  
the power cables for the devices are unplugged before the signal  
cables are connected. If possible, disconnect all power cables from the  
existing system before you add a device.  
Before connecting or removing signal cables from the motherboard,  
ensure that all power cables are unplugged.  
Seek professional assistance before using an adpater or extension  
cord. These devices could interrupt the grounding circuit.  
Make sure that your power supply is set to the correct voltage in your  
area. If you are not sure about the voltage of the electrical outlet you  
are using, contact your local power company.  
If the power supply is broken, do not try to fix it by yourself. Contact  
a qualified service technician or your retailer.  
Operation safety  
Before installing the motherboard and adding devices on it, carefully  
read all the manuals that came with the package.  
Before using the product, make sure all cables are correctly connected  
and the power cables are not damaged. If you detect any damage,  
contact your dealer immediately.  
To avoid short circuits, keep paper clips, screws, and staples away from  
connectors, slots, sockets and circuitry.  
Avoid dust, humidity, and temperature extremes. Do not place the  
product in any area where it may become wet.  
Place the product on a stable surface.  
If you encounter technical problems with the product, contact a  
qualified service technician or your retailer.  
The symbol of the crossed out wheeled bin indicates that the product  
(electrical and electronic equipment) should not be placed in municipal  
waste. Check local regulations for disposal of electronic products.  
viii  
About this guide  
This user guide contains the information you need when installing and  
configuring the motherboard.  
How this guide is organized  
This guide contains the following parts:  
Chapter 1: Product introduction  
This chapter describes the features of the motherboard and the new  
technology it supports.  
Chapter 2: Hardware information  
This chapter lists the hardware setup procedures that you have to  
perform when installing system components. It includes description of  
the switches, jumpers, and connectors on the motherboard.  
Chapter 3: Powering up  
This chapter describes the power up sequence, the vocal POST  
messages, and ways of shutting down the system.  
Chapter 4: BIOS setup  
This chapter tells how to change system settings through the BIOS  
Setup menus. Detailed descriptions of the BIOS parameters are also  
provided.  
Chapter 5: Software support  
This chapter describes the contents of the support CD that comes  
with the motherboard package.  
Appendix: CPU features  
The Appendix describes the CPU features that the motherboard  
supports.  
Where to find more information  
Refer to the following sources for additional information and for product  
and software updates.  
1. ASUS websites  
The ASUS website provides updated information on ASUS hardware  
and software products. Refer to the ASUS contact information.  
2. Optional documentation  
Your product package may include optional documentation, such as  
warranty flyers, that may have been added by your dealer. These  
documents are not part of the standard package.  
ix  
Conventions used in this guide  
To make sure that you perform certain tasks properly, take note of the  
following symbols used throughout this manual.  
DANGER/WARNING: Information to prevent injury to yourself  
when trying to complete a task.  
CAUTION: Information to prevent damage to the components  
when trying to complete a task.  
IMPORTANT: Instructions that you MUST follow to complete a  
task.  
NOTE: Tips and additional information to help you complete a  
task.  
Typography  
Bold text  
Italics  
Indicates a menu or an item to select.  
Used to emphasize a word or a phrase.  
<Key>  
Keys enclosed in the less-than and  
greater-than sign means that you must  
press the enclosed key.  
Example: <Enter> means that you must  
press the Enter or Return key.  
<Key1> + <Key2> + <Key3>  
If you must press two or more keys  
simultaneously, the key names are linked  
with a plus sign (+).  
Example: <Ctrl> + <Alt> + <Del>  
Command  
Means that you must type the command  
exactly as shown, then supply the  
required item or value enclosed in  
brackets.  
Example: At the DOS prompt, type the  
command line:  
afudos /i[filename]  
afudos /iP5LD2-SE.ROM  
x
P5LD2 SE specifications summary  
CPU  
LGA775 socket for Intel® Pentium® D/Pentium®4/  
Celeron® processor  
Compatible with Intel® PCG 05B/05A and 04B/04A and  
the latest Intel dual-core processor  
Supports Intel® Enhanced Memory 64 Technology (EM64T)  
Supports Enhanced Intel SpeedStep® Technology (EIST)  
Supports Intel® Hyper-Threading Technology  
Chipset  
Northbridge: Intel® 945P Memory Controller Hub (MCH)  
Southbridge: Intel® ICH7  
Front Side Bus  
Memory  
1066/800/533 MHz  
Dual-channel memory architecture  
4 x 240-pin DIMM sockets support unbufferred non-ECC  
DDR2-667/DDR2-533/DDR2-400 memory modules  
Supports up to 4 GB system memory  
Expansion slots  
Storage  
1 x PCI Express x16 slot  
2 x PCI Express x1 slots  
3 x PCI slots  
(Note: Wireless Edition is provided with 2 PCI slots.)  
Intel® ICH7 South Bridge supports:  
- 1 x Ultra ATA 133/100/66 hard disk drive  
- 4 x Serial ATA hard disks (3Gb/s)  
High Definition  
Audio  
ADI1986A 6-channel CODEC  
Supports Jack Sensing and Enumeration Technology  
Supports S/PDIF out interface  
USB  
Supports up to 8 USB 2.0 ports  
(Note: Wireless Edition supports up to 6 USB 2.0 ports.)  
Wireless LAN  
(optional)  
WiFi-g™ wireless solution provides:  
- support for IEEE 802.1 g/b standard  
- up to 54Mbps wireless data transmission  
- Software Access Point (Soft AP) feature on  
Windows® XP and 2003 Server  
LAN  
RTL8111B PCI-E Gigabit LAN controller  
Overclocking  
Features  
ASUS C.P.R. (CPU Parameter Recall)  
ASUS PEG Link  
ASUS EZ Flash  
ASUS AI Overclocking  
4-step DRAM voltage control  
Vcore: Adjustable CPU voltage at 0.0125 V increment  
Adjustable FSB/DDR ratio. Fixed PCI/PCIe frequencies.  
SFS (Stepless Frequency Selection) from 100MHz to  
450MHz at 1MHz increment  
(continued on the next page)  
xi  
P5LD2 SE specifications summary  
Other ASUS  
ASUS Q-Fan  
Special Features  
ASUS CrashFree BIOS 2  
ASUS MyLogo 2  
Back Panel I/O  
Ports  
1 x Parallel port  
1 x Serial port  
1 x PS/2 Keyboard  
1 x PS/2 Mouse  
1 x LAN (RJ45) port  
1 x S/PDIF Out port  
4 x USB 2.0 ports  
6-channel audio ports  
1 x WiFi-g™ antenna port (Wireless Edition only)  
1 x Wireless LAN LED (Wireless Edition only)  
Internal I/O  
Connectors  
1 x IDE connector  
1 x Floppy disk drive connector  
4 x SATA connectors  
1 x CPU fan connector  
1 x Chassis fan connector  
1 x Power fan connector  
1 x Chassis intrusion connector  
1 x CD audio-in connector  
1 x GAME/MIDI connector  
1 x S/PDIF Out port  
1 x Front panel audio connector  
1 x 24-pin ATX power connector  
1 x 4-pin ATX 12 V connector  
2 x USB connectors support 4 additional USB ports  
BIOS Feature  
4 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.O,  
SM BIOS2.3, ASUS EZ Flash, ASUS CrashFree BIOS2,  
ASUS MyLogo 2  
Manageability  
Support CD  
WOL by PME, WOR by PME, Chassis Intrusion  
Drivers  
ASUS PC Probe II  
ASUS LiveUpdate  
Anti-virus Software  
Accessory  
1 x UltraDMA 133/100/66 cable  
1 x USB/GAME cable  
1 x FDD cable  
2 x SATA cables  
2 x SATA power cables  
1 x I/O shield  
1 x User’s manual  
Form Factor  
ATX 12 in x 7.5 in (30.5 cm x 19 cm)  
*Specifications are subject to change without notice.  
xii  
This chapter describes the motherboard  
features and the new technologies  
it supports.  
Product  
1
introduction  
Chapter summary  
1
1.1  
1.2  
1.3  
Welcome!.............................................................................. 1-1  
Package contents ................................................................. 1-1  
Special features.................................................................... 1-2  
ASUS P5LD2 SE  
1.1  
Welcome!  
Thank you for buying an ASUS® P5LD2 SE motherboard!  
The motherboard delivers a host of new features and latest technologies,  
making it another standout in the long line of ASUS quality motherboards!  
Before you start installing the motherboard, and hardware devices on it,  
check the items in your package with the list below.  
1.2  
Package contents  
Check your motherboard package for the following items.  
Motherboard  
ASUS P5LD2 SE motherboard  
I/O modules  
Cables  
USB 2.0 (2 ports) and GAME (1 port) module  
2 x Serial ATA signal cables  
2 x Serial ATA power cables  
1 x Ultra ATA 133/100/66 cable  
1 x USB/GAME cable  
1 x Floppy disk drive cable  
Accessories  
I/O shield  
Application CDs  
Documentation  
ASUS motherboard support CD  
User guide  
If any of the above items is damaged or missing, contact your retailer.  
ASUS P5LD2 SE  
1-15  
1.3  
Special features  
1.3.1 Product highlights  
Latest processor technology  
The motherboard comes with a 775-pin surface mount Land Grid Array  
(LGA) socket designed for the Intel® Pentium® 4 processor in the 775-land  
package. The motherboard supports the Intel® Pentium® 4 processor with  
1066/800/533 MHz Front Side Bus (FSB). The motherboard also supports  
the Intel® Hyper-Threading Technology and is fully compatible with Intel®  
05B/05A or 04B/04A processors. See page 2-7 for details.  
Intel® Dual-Core Technology CPU support  
The motherboard supports dual-core processors containing two physical  
CPU cores with dedicated L2 caches to meet demands for more powerful  
processing capability.  
Intel® EM64T  
The motherboard supports Intel® Pentium® 4 CPUs with the Intel® Extended  
Memory 64 Technology (EM64T). The Intel® EM64T feature allows your  
computer to run on 64-bit operating systems and access larger amounts of  
system memory for faster and more efficient computing. See Appendix for  
details.  
Enhanced Intel SpeedStep® Technology (EIST)  
The Enhanced Intel SpeedStep® Technology (EIST) intelligently manages  
the CPU resources by automatically adjusting the CPU voltage and core  
frequency depending on the CPU loading and system speed or power  
requirement. See page 4-24 and the Appendix for details.  
Intel® 945P chipset  
The Intel® 945P Memory Controller Hub (MCH) and the ICH7 I/O controller  
hub provide the vital interfaces for the motherboard. The MCH provides  
support for Intel® processor, dual-channel memory, and PCI Express  
interfaces.  
The Intel® ICH7 Southbridge represents the seventh generation I/O  
controller hub that provides the interface for storage, I/O, PCI Express, and  
6‑channel high definition audio system.  
1-16  
Chapter 1: Product introduction  
DDR2 memory support  
The motherboard supports DDR2 memory which features data transfer rates  
of 667/533/400 MHz to meet the higher bandwidth requirements of the  
latest 3D graphics, multimedia, and Internet applications. The dual-channel  
DDR2 architecture doubles the bandwidth of your system memory to boost  
system performance, eliminating bottlenecks with peak bandwidths of up  
to 10.7 GB/s. See pages 2-14 to 2-17 for details.  
Serial ATA technology  
The motherboard supports the Serial ATA technology through the Serial  
ATA interfaces and Intel® ICH7 southbridge. The SATA specification allows  
for thinner, more flexible cables with lower pin count, reduced voltage  
requirement, and up to 300 MB/s data transfer rate. See page 2-26 for  
details.  
PCI Express™ interface  
The motherboard fully supports PCI Express, the latest I/O interconnect  
technology that speeds up the PCI bus. PCI Express features point-to-point  
serial interconnections between devices and allows higher clockspeeds by  
carrying data in packets. This high speed interface is software compatible  
with existing PCI specifications. See page 2‑20 for details.  
SoundMAX Digital Audio System  
The motherboard comes with the ADI AD1986A high‑definition audio CODEC  
that lets you enjoy high-quality 6-channel audio without having to buy  
advanced sound cards.  
The ADI SoundMAX Digital Audio System features state-of-the-art DLS2  
MIDI synthesizer with Yamaha DLSbyXG sound set, 5.1 Virtual Theater™ and  
supports major game audio technologies including Microsoft® DirectX™ 9.0c,  
Microsoft® DirectSound 3D, A3D, MacroFX, ZoomFX, MultiDrive 5.1, A3D and  
EAX. See pages 2-23 and 2-24 for details.  
S/PDIF digital sound ready  
The motherboard supports the S/PDIF technology through the coaxial  
and optical S/PDIF Out port on the rear panel. The S/PDIF technology  
turns your computer into a high-end entertainment system with digital  
connectivity to powerful audio and speaker systems. See page 2-24 for  
details.  
ASUS P5LD2 SE  
1-17  
USB 2.0 technology  
The motherboard implements the Universal Serial Bus (USB) 2.0  
specification, dramatically increasing the connection speed from the  
12 Mbps bandwidth on USB 1.1 to a faster 480 Mbps on USB 2.0. USB 2.0  
is backward compatible with USB 1.1. See pages 2-24 and 2-28 for details.  
Gigabit LAN solution  
The motherboard comes with a PCI Express Gigabit LAN controller to  
provide a total solution for your networking needs. The Gigabit LAN  
controller uses the PCI Express segment to provide faster data bandwidth.  
See pages 2-23 to 2-24 for details.  
Temperature, fan, and voltage monitoring  
The CPU temperature is monitored by the ASIC (integrated in the Winbond  
Super I/O) to prevent overheating and damage. The system fan rotations  
per minute (RPM) is monitored for timely failure detection. The ASIC  
monitors the voltage levels to ensure stable supply of current for critical  
components. See pages 4-33 and 4-34 for details.  
1-18  
Chapter 1: Product introduction  
1.3.2 ASUS AI Lifestyle features  
AI Quiet  
The ASUS AI Quiet function dynamically controls CPU speed and reduces  
temperature and fan speeds, thus minimizing noise and ensuring quiet  
operation. See page 4-33 for details.  
AI Overclocking  
This feature allows convenient overclocking up to 30% (depending on the  
installed CPU and DRAM) to enhance system performance while maintaining  
system stability. See page 4-19 for details.  
ASUS WiFi-g™  
(Wireless Edition only)  
ASUS WiFi-g™ is an IEEE 802.11g-compliant wireless LAN adapter that  
allows data transmission of up to 54 Mbps using the 2.4 GHz frequency  
band. ASUS provides full software application support and a user-friendly  
wizard to help you set up your wireless LAN effortlessly. The ASUS  
WiFi-g™ is backward compatible with IEEE 802.11b devices.  
See pages 2-23 and 2-24 for details.  
1.3.3 Innovative ASUS features  
Precision Tweaker  
This feature allows you to fine‑tune the CPU/memory voltage and gradually  
increase the Front Side Bus (FSB) and PCI Express frequency to achieve  
maximum system performance. See pages 4-20 and 4-21 for details.  
PEG Link Mode  
This feature enhances your PCI Express graphics card performance by  
allowing the motherboard to automatically adjust the PCI Express graphics  
link mode to the correct frequency based on the system configuration.  
Four additional settings are available for overclocking the PEG Link Mode.  
See page 4-26 for details.  
ASUS Hyper Path 3  
This feature significantly shortens latency time during data transfers,  
allowing users to experience the real power of their computers. See page  
4-26 for details.  
ASUS P5LD2 SE  
1-19  
CPU Lock Free  
This feature allows you to adjust the CPU multiplier to 14x. Setting the  
appropriate BIOS setting automatically reduces the CPU multiplier value for  
more flexibility when increasing external FSB. See page 4‑23 for details.  
CrashFree BIOS 2  
This feature allows you to restore the original BIOS data from the support CD  
in case the BIOS codes and data are corrupted. This protection eliminates the  
need to buy a replacement ROM chip. See page 4-5 for details.  
ASUS Q-Fan technology  
The ASUS Q-Fan technology smartly adjusts the fan speeds according to  
the system loading to ensure quiet, cool, and efficient operation.  
See pages 4-33 and 4-34 for details.  
ASUS MyLogo2™  
This new feature present in the motherboard allows you to personalize and  
add style to your system with customizable boot logos. See page 5-8 for  
details.  
1-20  
Chapter 1: Product introduction  
This chapter lists the hardware setup  
procedures that you have to perform  
when installing system components.  
It includes description of the jumpers  
and connectors on the motherboard.  
Hardware  
2
information  
Chapter summary  
2
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
2.7  
Before you proceed .............................................................. 2-1  
Motherboard overview.......................................................... 2-2  
Central Processing Unit (CPU) .............................................. 2-7  
System memory.................................................................. 2-14  
Expansion slots................................................................... 2-18  
Jumpers .............................................................................. 2-21  
Connectors ......................................................................... 2-23  
ASUS P5LD2 SE  
2.1  
Before you proceed  
Take note of the following precautions before you install motherboard  
components or change any motherboard settings.  
Unplug the power cord from the wall socket before touching any  
component.  
Use a grounded wrist strap or touch a safely grounded object or  
a metal object, such as the power supply case, before handling  
components to avoid damaging them due to static electricity.  
Hold components by the edges to avoid touching the ICs on them.  
Whenever you uninstall any component, place it on a grounded  
antistatic pad or in the bag that came with the component.  
Before you install or remove any component, ensure  
that the ATX power supply is switched off or the power cord is  
detached from the power supply. Failure to do so may cause severe  
damage to the motherboard, peripherals, or components, or all of  
the above articles.  
Onboard LED  
The motherboard comes with a standby power LED. The green LED lights  
up to indicate that the system is ON, in sleep mode, or in soft-off mode.  
This is a reminder that you should shut down the system and unplug the  
power cable before removing or plugging in any motherboard component.  
The illustration below shows the location of the onboard LED.  
SB_PWR  
R
ON  
Standby  
Power  
OFF  
Powered  
Off  
P5LD2 SE Onboard LED  
ASUS P5LD2 SE  
2-1  
2.2  
Motherboard overview  
Before you install the motherboard, study the configuration of your chassis  
to ensure that the motherboard fits into it.  
Make sure to unplug the power cord before installing or removing the  
motherboard. Failure to do so can cause you physical injury and damage  
to the motherboard components.  
2.2.1 Placement direction  
When installing the motherboard, make sure that you place it into the  
chassis in the correct orientation. The edge with external ports goes to the  
rear part of the chassis as indicated in the image below.  
2.2.2 Screw holes  
Place seven (7) screws into the holes indicated by circles to secure the  
motherboard to the chassis.  
Do not overtighten the screws! Doing so can damage the motherboard.  
Place this side towards  
the rear of the chassis  
R
2-2  
Chapter 2: Hardware information  
2.2.3 Motherboard layout  
Non-wireless Edition  
19.0cm(7.5in)  
PS/2KBMS  
T:Mouse  
B:Keyboard  
ATX12V  
SPDIF_O  
LGA775  
COM1  
USB12  
LAN_USB34  
Intel 945P  
Top:Line In  
Center:Line Out  
Below:Mic In  
R
USBPW34  
USBPW12  
PCIEX16  
CLRTC  
PCIEX1_2  
CR2032 3V  
Lithium Cell  
CMOS Power  
PCI1  
Intel ICH7  
RLT8111B  
PCI2  
SPDIF_OUT  
USBPW78  
SATA1  
SATA2  
SATA4  
SB_PWR  
PCI3  
4Mb  
Audio  
SATA3  
BIOS  
USB78  
PRI_IDE  
Super I/O  
PCIEX1_1  
CD  
USBPW56  
CHA_FAN1  
AAFP  
FLOPPY  
GAME  
USB56  
PANEL  
Slot PCI 3 and port connector USB78 are only available in the  
Non-wireless Edition.  
ASUS P5LD2 SE  
2-3  
Wireless Edition  
19.0cm(7.5in)  
PS/2KBMS  
T:Mouse  
B:Keyboard  
ATX12V  
SPDIF_O  
LGA775  
COM1  
USB12  
LAN_USB34  
Intel 945P  
Top:Line In  
Center:Line Out  
Below:Mic In  
R
USBPW34  
USBPW12  
PCIEX16  
CLRTC  
PCIEX1_2  
CR2032 3V  
Lithium Cell  
CMOS Power  
PCI1  
Intel ICH7  
RLT8111B  
PCI2  
SPDIF_OUT  
SATA1  
SATA2  
SATA4  
SB_PWR  
4Mb  
Audio  
SATA3  
BIOS  
USBPW78  
USB78_WIFI  
CD  
PRI_IDE  
Super I/O  
PCIEX1_1  
USBPW56  
CHA_FAN1  
AAFP  
FLOPPY  
GAME  
USB56  
PANEL  
2-4  
Chapter 2: Hardware information  
2.2.4 Layout contents  
Slots  
Page  
1.  
2.  
3.  
DDR2 DIMM slots  
PCI slots  
2-14  
2-20  
2-20  
PCI Express slots  
Jumpers  
Page  
1.  
2.  
Clear RTC RAM (3-pin CLRTC)  
2-21  
2-22  
USB Device wake-up (3-pin USBPW12, USBPW34,  
USBPW56, USBPW78)  
Rear panel connectors  
Page  
1.  
2.  
PS/2 mouse port (green)  
Parallel port  
2-23  
2-23  
3.  
4.  
LAN (RJ-45) port  
2-23  
2-23  
2-23  
2-23  
2-24  
2-24  
2-24  
2-24  
2-24  
2-24  
2-24  
Line In port (light blue)  
5.  
Line Out port (lime)  
6.  
Wireless LAN data transmission LED (Wireless Edition only)  
WiFi-g™ antenna port (Wireless Edition only)  
Microphone port (pink)  
7.  
8.  
9.  
USB 2.0 ports 3 and 4  
10.  
11.  
12.  
13.  
USB 2.0 ports 1 and 2  
Serial port (COM1)  
S/PDIF Out port  
PS/2 keyboard port (purple)  
ASUS P5LD2 SE  
2-5  
Internal connectors  
Page  
1.  
2.  
3.  
Floppy disk drive connector (34-1 pin FLOPPY)  
2-25  
2-25  
2-26  
ICH7R Primary IDE connector (40-1 pin PRI_IDE)  
Serial ATA connectors (7-pin SATA1 [red], SATA2 [red],  
SATA3 [black], SATA4 [black])  
4.  
5.  
6.  
7.  
8.  
Optical drive audio connector (4-pin CD)  
Front panel audio connector (10-1 pin AAFP)  
USB connectors (10-1 pin USB56, USB78)  
GAME/MIDI port connector (16-1 pin GAME)  
2-27  
2-27  
2-28  
2-28  
2-29  
CPU, Chassis, and Power Fan connectors (4-pin CPU_FAN,  
3-pin CHA_FAN1, PWR_FAN)  
9.  
Chassis intrusion connector (4-1 pin CHASSIS)  
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)  
System panel connector (20-1 pin PANEL)  
2-29  
2-30  
2-31  
10.  
11.  
System power LED (Green 3-pin PLED)  
Hard disk drive activity LED (Red 2-pin IDE_LED)  
System warning speaker (Orange 4-pin SPEAKER)  
ATX power button/soft-off button (Yellow 2-pin PWRSW)  
Reset button (Blue 2-pin RESET)  
For Wireless Edition, the connector USB78 connects to the WiFi card, so  
it is not available for connecting any USB/GAME module.  
2-6  
Chapter 2: Hardware information  
2.3  
Central Processing Unit (CPU)  
The motherboard comes with a surface mount LGA775 socket designed for  
the Intel® Pentium® D, Pentium® 4 and Celeron® processor in the 775-land  
package.  
Upon purchase of the motherboard, make sure that the PnP cap is  
on the socket and the socket contacts are not bent. Contact your  
retailer immediately if the PnP cap is missing, or if you see any  
damage to the PnP cap/socket contacts/motherboard components.  
ASUS shoulders the repair cost only if the damage is shipment/  
transit-related.  
Keep the cap after installing the motherboard. ASUS will process  
Return Merchandise Authorization (RMA) requests only if the  
motherboard comes with the cap on the LGA775 socket.  
The product warranty does not cover damage to the socket  
contacts resulting from incorrect CPU installation/removal, or  
misplacement/loss/incorrect removal of the PnP cap.  
2.3.1 Installing the CPU  
To install a CPU:  
1. Locate the CPU socket on the motherboard.  
Ti
R
P5LD2 SE CPU Socket 775  
Before installing the CPU, make sure that the cam box is facing towards  
you and the load lever is on your left.  
ASUS P5LD2 SE  
2-7  
2. Press the load lever with your thumb (A), then move it to the left (B)  
until it is released from the retention tab.  
Retention tab  
A
PnP cap  
Load lever  
B
This side of the  
socket box should  
face you.  
To prevent damage to the socket pins, do not remove the PnP cap  
unless you are installing a CPU.  
3. Lift the load lever in the  
direction of the arrow to a 135º  
angle.  
4. Lift the load plate with your  
thumb and forefinger to a 100º  
angle (A), then push the PnP cap  
from the load plate window to  
remove (B).  
B
A
Load plate  
5. Position the CPU over  
the socket, making sure  
that the gold triangle  
is on the bottom-left  
corner of the socket.  
The socket alignment  
Alignment key  
key should fit into the  
CPU notch.  
Gold triangle mark  
2-8  
Chapter 2: Hardware information  
The CPU fits in only one correct orientation. DO NOT force the CPU  
into the socket to prevent bending the connectors on the socket and  
damaging the CPU!  
6. Close the load plate (A), then  
A
push the load lever (B) until  
it snaps into the retention  
tab.  
B
The motherboard supports Intel® Pentium® 4 LGA775 processors with  
the Intel® Enhanced Memory 64 Technology (EM64T), Enhanced Intel  
SpeedStep® Technology (EIST), and Hyper-Threading Technology. Refer  
to the Appendix for more information on these CPU features.  
ASUS P5LD2 SE  
2-9  
2.3.2 Installing the CPU heatsink and fan  
The Intel® Pentium® 4 LGA775 processor requires a specially designed  
heatsink and fan assembly to ensure optimum thermal condition and  
performance.  
When you buy a boxed Intel® Pentium® 4 processor, the package  
includes the CPU fan and heatsink assembly.  
Your Intel® Pentium® 4 LGA775 heatsink and fan assembly comes in  
a push-pin design and requires no tool to install.  
If you purchased a separate CPU heatsink and fan assembly, make  
sure that you have properly applied Thermal Interface Material to  
the CPU heatsink or CPU before you install the heatsink and fan  
assembly.  
If you buy a CPU separately, make sure that you use only  
Intel®‑certified multi‑directional heatsink and fan.  
Make sure that you have installed the motherboard to the chassis  
before you install the CPU fan and heatsink assembly.  
To install the CPU heatsink and fan:  
1. Place the heatsink on top of  
the installed CPU, making sure  
that the four fasteners match  
the holes on the motherboard.  
Orient the heatsink and fan  
assembly such that the CPU  
fan cable is closest to the  
CPU fan connector.  
Motherboard hole  
Fastener  
Narrow end  
of the groove  
Make sure to orient each fastener with the narrow end of the groove  
pointing outward. (The photo shows the groove shaded for emphasis.)  
2-10  
Chapter 2: Hardware information  
2. Push down two fasteners at  
a time in a diagonal sequence  
to secure the heatsink and fan  
assembly in place.  
B
B
A
A
A
B
B
A
3. Connect the CPU fan cable to the connector on the motherboard  
labeled CPU_FAN.  
CPU_FAN  
GND  
CPU FAN PWR  
CPU FAN IN  
CPU FAN PWM  
i
P5LD2 SE CPU Fan Connectors  
DO NOT forget to connect the CPU fan connector! Hardware monitoring  
errors can occur if you fail to plug this connector.  
ASUS P5LD2 SE  
2-11  
2.3.3 Uninstalling the CPU heatsink and fan  
To uninstall the CPU heatsink and fan:  
1. Disconnect the CPU fan cable  
from the connector on the  
motherboard.  
2. Rotate each fastener  
counterclockwise.  
3. Pull up two fasteners at a  
time in a diagonal sequence  
B
to disengage the heatsink  
A
and fan assembly from the  
A
motherboard.  
B
A
B
B
A
4. Carefully remove the heatsink  
and fan assembly from the  
motherboard.  
2-12  
Chapter 2: Hardware information  
5. Rotate each fastener clockwise  
to ensure correct orientation  
when reinstalling.  
Narrow end of the groove  
The narrow end of the  
groove should point outward  
after resetting. (The photo  
shows the groove shaded for  
emphasis.)  
Refer to the documentation in the boxed or stand-alone CPU fan package  
for detailed information on CPU fan installation.  
ASUS P5LD2 SE  
2-13  
2.4  
System memory  
2.4.1 Overview  
The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline  
Memory Modules (DIMM) sockets.  
A DDR2 module has the same physical dimensions as a DDR DIMM but has  
a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are  
notched differently to prevent installation on a DDR DIMM socket.  
The figure illustrates the location of the DDR2 DIMM sockets:  
R
P5LD2 SE 240-pin DDR2 DIMM Sockets  
Channel  
Sockets  
Channel A  
Channel B  
DIMM_A1 and DIMM_A2  
DIMM_B1 and DIMM_B2  
2.4.2 Memory configurations  
You may install 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR2  
DIMMs into the DIMM sockets.  
For dual‑channel configuration, the total size of memory module(s)  
installed per channel must be the same (DIMM_A1 + DIMM_A2 =  
DIMM_B1 + DIMM_B2).  
Always install DIMMs with the same CAS latency. For optimum  
compatibility, it is recommended that you obtain memory modules  
from the same vendor. Refer to the DDR2 Qualified Vendors List on  
the next page for details.  
Due to chipset resource allocation, the system may detect less than  
4 GB system memory when you installed four 1 GB DDR2 memory  
modules.  
This motherboard does not support memory modules made up of  
128 Mb chips or double sided x16 memory modules.  
2-14  
Chapter 2: Hardware information  
Qualified Vendors Lists (QVL)  
DDR2-533  
DIMM support  
Size  
Vendor  
Model  
CL  
N/A SAMSUNG SS K4T560838QF-GCD5 •  
N/A SAMSUNG SS K4T51083QB-GCD5  
Brand Side(s) Component  
A
B
C
256 MB SAMSUNG M378T3253FG0-CD5  
512 MB SAMSUNG M378T6553BG0-CD5  
512 MB Infineon  
512 MB Infineon  
512 MB CORSAIR  
512 MB MICRON  
512 MB MICRON  
1024MB MICRON  
1024MB Kingston  
256 MB Kingston  
512 MB Kingston  
512 MB ELPIDA  
512 MB KINGMAX  
1024MB Apacer  
512 MB Aeneon  
512 MB PQI  
HYS64T64000GU‑3.7‑A  
HYS64T64000HU‑3.7‑A  
VS512MB533D2  
N/A  
N/A  
Infineon  
Infineon  
SS HYB18T512800AC37SSS11511 •  
SS HYB18T512800AF37SS29334•  
N/A CORSAIR DS MIII0052532M8CEC  
MT 16HTF6464AG-53EB2 N/A  
MT 16HTF6464AG-53EB2 N/A  
MICRON  
MICRON  
DS D9BOM  
DS Z9BQT  
DS D9CRZ  
N/A  
MT 16HTF12864AY-53EA1N/A MICRON  
KVR533D2N4/1G  
KVR533D2N4/256  
KVR533D2N4/512  
EBE51UD8ABFA-5C-E  
KLBC28F-A8KB4  
78.01092.420  
N/A Kingston DS D6408TE7BL-37  
N/A  
N/A  
N/A  
ELPIDA  
Hynix  
SS E5116AB-5C-E  
DS HY5PS56821  
SS E5108AB-5C-E  
ELPIDA  
N/A KINGMAX SS KKEA88B4IAK-37  
N/A  
ELPIDA  
Aeneon  
PQI  
SS E5108AE-6E-E  
AET660UD00-370A98X N/A  
SS AET93F370AG0513  
SS D2-E04180W025  
DS D2-E04230W107  
SS MDT18D51280D-3.70520  
DS MDT18D51280D-30528  
MEAB-323LA  
MEAB-423LA  
MDT 512MB  
MDT 1024 MB  
N/A  
N/A  
N/A  
N/A  
1024MB PQI  
PQI  
512 MB MDT  
MDT  
1024MB MDT  
MDT  
Side(s): SS - Single-sided DS - Double-sided  
CL: CAS Latency  
DIMM support:  
A
-
Supports one module inserted into either slot, in Single-channel  
memory configuration.  
B
-
Supports one pair of modules inserted into either the yellow  
slots or the black slots as one pair of Dual-channel memory  
configuration.  
C
-
Supports two pairs of modules inserted into the yellow and black  
slots as two pairs of Dual‑channel memory configuration.  
ASUS P5LD2 SE  
2-15  
DDR2-667  
DIMM support  
Size  
Vendor  
Model  
CL  
Brand Side(s) Component  
A
B
C
512 MB SAMSUNG KR M378T6553FC0-CE6 N/A SAMSUNG SS K4T51083QC  
512 MB SAMSUNG KR M378T6453FZ0-CE6 N/A SAMSUNG DS K4T56083QF-ZCE6  
1024MB SAMSUNG KR M378T2953CZ0-CE6 N/A SAMSUNG SS K4T51083QC-ZCE6  
512 MB Hynix  
HYMP564U64AP8-Y4 AA N/A  
HYMP564U64AP8-Y5 AA N/A  
HYMP512U64AP8-Y5 AB N/A  
Hynix  
Hynix  
SS HY5PS12821AFP-Y4  
SS HY5PS12821AFP-Y5  
DS HY5PS12821AFP-Y5  
512 MB Hynix  
1024 MB Hynix  
Hynix  
256 MB Infineon  
512 MB Infineon  
1024 MB Infineon  
512 MB NANYA  
512 MB Kingston  
512 MB Kingston  
1024 MB Kingston  
512 MB CORSAIR  
1024 MB Apacer  
512 MB ADATA  
512 MB Patriot  
1024 MB MDT  
HYS64T32000HU‑3S‑A  
HYS64T32000HU‑3S‑A  
N/A  
N/A  
Infineon  
Infineon  
Infineon  
NANYA  
SS HYB18T512160AF‑3S•  
SS HYB18T512160AF‑3S•  
DS HYB18T512800AF3S-SSS28104•  
HYS64T128020HU‑3S‑A N/A  
NT512T64U88A1BY-3C  
KVR667D2N5/512  
KVR667D2E5/512  
KVR667D2N5/1G  
VS512MB667D2  
N/A  
SS NT5TU64M8AE-3C  
N/A Kingston SS D6408TE8WL-27  
N/A Kingston SS E5108AE-6E-E  
N/A Kingston DS D6408TE8WL-3  
N/A CORSAIR DS MIII0052532M8CEC  
78.01092.420  
N/A  
ELPIDA  
ELPIDA  
PDP  
SS E5108AE-6E-E  
SS E5108AE-6E-E  
DS --------------------  
DS MDT18D51280D-30528  
M20EL5G3H3160B1C0Z N/A  
PDC21G5600+XBLK  
MDT 1024 MB  
N/A  
N/A  
MDT  
DDR2-800  
DIMM support  
Size  
Vendor  
Model  
CL  
Brand Side(s) Component  
A
B
C
512 MB Hynix  
1024MB Hynix  
HYMP564U64AP8-S6 AA N/A  
HYMP512U64AP8-S6 AA N/A  
Hynix  
Hynix  
SS HY5PS12821AFP-S6  
DS HY5PS12821AFP-S6  
Side(s): SS - Single-sided DS - Double-sided  
CL: CAS Latency  
DIMM support:  
A
-
Supports one module inserted into either slot, in Single-channel  
memory configuration.  
B
-
Supports one pair of modules inserted into either the yellow  
slots or the black slots as one pair of Dual-channel memory  
configuration.  
C
-
Supports two pairs of modules inserted into the yellow and black  
slots as two pairs of Dual‑channel memory configuration.  
Visit the ASUS website for the latest DDR2-533/667/800 MHz QVL.  
Chapter 2: Hardware information  
2-16  
2.4.3 Installing a DIMM  
Unplug the power supply before adding or removing DIMMs or other  
system components. Failure to do so can cause severe damage to both  
the motherboard and the components.  
2
To install a DIMM:  
DDR2 DIMM notch  
3
1. Unlock a DIMM socket by  
pressing the retaining clips  
outward.  
2. Align a DIMM on the socket  
such that the notch on the  
DIMM matches the break on  
the socket.  
1
3. Firmly insert the DIMM into the  
socket until the retaining clips  
snap back in place and the  
DIMM is properly seated.  
Unlocked retaining clip  
A DDR2 DIMM is keyed with a notch so that it fits in only one  
direction. DO NOT force a DIMM into a socket to avoid damaging the  
DIMM.  
The DDR2 DIMM sockets do not support DDR DIMMs. DO NOT install  
DDR DIMMs to the DDR2 DIMM sockets.  
2.4.4 Removing a DIMM  
Follow these steps to remove a DIMM.  
2
1. Simultaneously press the retaining  
clips outward to unlock the DIMM.  
Support the DIMM lightly with  
your fingers when pressing the  
retaining clips. The DIMM might  
get damaged when it flips out  
with extra force.  
1
1
DDR2 DIMM notch  
2. Remove the DIMM from the socket.  
ASUS P5LD2 SE  
2-17  
2.5  
Expansion slots  
In the future, you may need to install expansion cards. The following  
sub-sections describe the slots and the expansion cards that they support.  
Make sure to unplug the power cord before adding or removing  
expansion cards. Failure to do so may cause you physical injury and  
damage to the motherboard components.  
2.5.1 Installing an expansion card  
To install an expansion card:  
1. Before installing the expansion card, read the documentation that  
came with it and make the necessary hardware settings for the card.  
2. Remove the system unit cover (if your motherboard is already  
installed in a chassis).  
3. Remove the bracket opposite the slot that you intend to use. Keep  
the screw for later use.  
4. Align the card connector with the slot and press firmly until the card is  
completely seated on the slot.  
5. Secure the card to the chassis with the screw you removed earlier.  
6. Replace the system cover.  
2.5.2 Configuring an expansion card  
After installing the expansion card, configure it by adjusting the software  
settings.  
1. Turn on the system and change the necessary BIOS settings, if any.  
See Chapter 4 for information on BIOS setup.  
2. Assign an IRQ to the card. Refer to the tables on the next page.  
3. Install the software drivers for the expansion card.  
When using PCI cards on shared slots, ensure that the drivers support  
“Share IRQ” or that the cards do not need IRQ assignments. Otherwise,  
conflicts will arise between the two PCI groups, making the system  
unstable and the card inoperable. Refer to the table on the next page for  
details.  
2-18  
Chapter 2: Hardware information  
2.5.3 Interrupt assignments  
Standard interrupt assignments  
IRQ  
Priority  
Standard Function  
0
1
1
2
System Timer  
Keyboard Controller  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
11  
12  
13  
14  
15  
3
4
5
6
7
Re-direct to IRQ#9  
Communications Port (COM1)*  
IRQ holder for PCI steering*  
Floppy Disk Controller  
Printer Port (LPT1)*  
System CMOS/Real Time Clock  
IRQ holder for PCI steering*  
IRQ holder for PCI steering*  
IRQ holder for PCI steering*  
PS/2 Compatible Mouse Port*  
Numeric Data Processor  
Primary IDE Channel  
8
9
10  
Secondary IDE Channel  
* These IRQs are usually available for ISA or PCI devices.  
IRQ assignments for this motherboard  
A
B
C
D
E
F
G
H
PCI slot 1  
PCI slot 2  
PCI slot 3  
PCI E x16 slot  
PCI E x1 slot 1  
PCI E x1 slot 2  
Onboard USB controller 0  
Onboard USB controller 1  
Onboard USB controller 2  
Onboard USB controller 3  
Onboard EHCI controller  
Onboard IDE port  
Onboard SATA port  
Onboard Audio controller  
Onboard LAN controller  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
PCI slot 3 is not available in the Wireless Edition.  
ASUS P5LD2 SE  
2-19  
2.5.4 PCI slots  
The PCI slots support cards that  
comply with PCI specifications, such  
as a LAN card, SCSI card, USB card.  
The figure shows a LAN card installed  
on a PCI slot.  
2.5.5 PCI Express x16 slot  
This motherboard supports PCI  
Express x16 graphics cards that  
comply with the PCI Express  
specifications. The following figure  
shows a graphics card installed on the  
PCI Express x16 slot.  
2.5.6 PCI Express x1 slots  
This motherboard supports PCI  
Express x1 network cards, SCSI cards  
and other cards that comply with  
the PCI Express specifications. The  
following figure shows a network card  
installed on the PCI Express x1 slot.  
2-20  
Chapter 2: Hardware information  
2.6  
Jumpers  
1. Clear RTC RAM (CLRTC)  
This jumper allows you to clear the Real Time Clock (RTC) RAM in  
CMOS. You can clear the CMOS memory of date, time, and system  
setup parameters by erasing the CMOS RTC RAM data. The onboard  
button cell battery powers the RAM data in CMOS, which include  
system setup information such as system passwords.  
To erase the RTC RAM:  
1. Turn OFF the computer and unplug the power cord.  
2. Remove the onboard battery.  
3. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the  
cap on pins 2-3 for about 5~10 seconds, then move the cap back  
to pins 1-2.  
4. Re-install the battery.  
5. Plug the power cord and turn ON the computer.  
6. Hold down the <Del> key during the boot process and enter BIOS  
setup to re-enter data.  
Except when clearing the RTC RAM, never remove the cap on CLRTC  
jumper default position. Removing the cap will cause system boot failure!  
2 3  
r
R
Clear CMOS  
CLRTC  
1
2
Normal  
(Default)  
P5LD2 SE Clear RTC RAM  
You do not need to clear the RTC when the system hangs due to  
overclocking. For system failure due to overclocking, use the C.P.R. (CPU  
Parameter Recall) feature. Shut down and reboot the system so the BIOS  
can automatically restore parameter settings to default values.  
ASUS P5LD2 SE  
2-21  
2. USB device wake-up jumpers (3-pin USBPW12, USBPW34,  
USBPW56, USBPW78)  
Set these jumpers to +5V to wake up the computer from S1 sleep  
mode (CPU stopped, DRAM refreshed, system running in low power  
mode) using the connected USB devices. Set to +5VSB to wake up  
from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh,  
power supply in reduced power mode).  
The USBPWR12 and USBPWR34 jumpers are for the rear USB ports.  
The USBPWR56 and USBPWR78 jumpers are for the internal USB  
connectors that you can connect to additional USB ports.  
2
1 2  
3
USBPW34  
USBPW12  
+5V  
+5VSB  
(Default)  
2
1 2  
3
i
R
+5V  
+5VSB  
(Default)  
USBPW78  
USBPW56  
2
1 2  
3
+5V  
+5VSB  
(Default)  
P5LD2 SE USB Device Wake Up  
The USB device wake-up feature requires a power supply that can  
provide 500mA on the +5VSB lead for each USB port; otherwise, the  
system would not power up.  
The total current consumed must NOT exceed the power supply  
capability (+5VSB) whether under normal condition or in sleep mode.  
2-22  
Chapter 2: Hardware information  
2.7  
Connectors  
2.7.1 Rear panel connectors  
1
2
3
4
5
8
6
7
9
13  
12  
11  
10  
1. PS/2 mouse port (green). This port is for a PS/2 mouse.  
2. Parallel port. This 25-pin port connects a parallel printer, a scanner, or  
other devices.  
3. LAN (RJ-45) port. This port allows Gigabit connection to a Local Area  
Network (LAN) through a network hub. Refer to the table below for  
the LAN port LED indications.  
LAN port LED indications  
ACT/LINK SPEED  
ACT/LINK LED  
SPEED LED  
LED  
LED  
Status  
Description  
Status  
Description  
OFF  
No link  
Linked  
OFF  
10 Mbps connection  
100 Mbps connection  
1 Gbps connection  
GREEN  
ORANGE  
GREEN  
BLINKING Data activity  
LAN port  
4. Line In port (light blue). This port connects a tape, CD, DVD player, or  
other audio sources.  
5. Line Out port (lime). This port connects a headphone or a speaker.  
Refer to the audio configuration table on the next page for the function  
of the audio ports in 2, 4, or 6‑channel configuration.  
6. Wireless LAN data transmission LED. This green AIR LED indicates the  
data transmission status of the onboard wireless LAN adapter. Refer  
to the table on the next page for LED indications. (Wireless Edition  
only)  
ASUS P5LD2 SE  
2-23  
Wireless LAN LED indications  
Status  
Indication  
On  
The onboard WiFi-g™ is on but has no data activity.  
The onboard WiFi-g™ is off.  
Off  
Flashing  
The onboard WiFi-g™ card is transmitting and/or receiving data.  
7. WiFi-g™ antenna port. This port connects to the optional dipolar  
antenna for the onboard ASUS WiFi-g™ solution. (Wireless Edition  
only)  
8. Microphone phone (pink). This port connects a microphone.  
Audio 2, 4, or 6-channel configuration  
Port  
Headset  
2-channel  
4-channel  
6-channel  
Light Blue  
Lime  
Line In  
Line Out  
Mic In  
Front Speaker Out  
Rear Speaker Out  
Mic In  
Front Speaker Out  
Rear Speaker Out  
Center/Subwoofer  
Pink  
9. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB)  
ports are available for connecting USB 2.0 devices.  
10. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB)  
ports are available for connecting USB 2.0 devices.  
11. Serial port. This port connects a mouse, modem, or other devices that  
conform with serial specification.  
12. S/PDIF Out port. This port connects an external audio output device  
via an S/PDIF cable.  
13. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.  
2-24  
Chapter 2: Hardware information  
2.7.2 Internal connectors  
1. Floppy disk drive connector (34-1 pin FLOPPY)  
This connector is for the provided Floppy Disk Drive (FDD) signal  
cable. Insert one end of the cable to this connector, then connect the  
other end to the signal connector at the back of the floppy disk drive.  
Pin 5 on the connector is removed to prevent incorrect cable connection  
when using a FDD cable with a covered Pin 5.  
r
l
FLOPPY  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1.  
R
PIN 1  
P5LD2 SE Floppy Disk Drive Connector  
2. ICH7 Primary IDE connector (40-1 pin PRI_IDE)  
This connector is for an Ultra DMA 133/100/66 signal cable. The Ultra  
DMA 133/100/66 signal cable has three connectors: a blue connector  
for the primary IDE connector on the motherboard, a black connector  
for an Ultra DMA 133/100/66 IDE slave device (optical drive/hard  
disk drive), and a gray connector for an Ultra DMA 133/100/66 IDE  
master device (hard disk drive). If you install two hard disk drives,  
you must configure the second drive as a slave device by setting its  
jumper accordingly. Refer to the hard disk documentation for the  
jumper settings.  
Pin 20 on the IDE connector is removed to match the covered hole  
on the Ultra DMA cable connector. This prevents incorrect insertion  
when you connect the IDE cable.  
Use the 80-conductor IDE cable for Ultra DMA 133/100/66 IDE  
devices.  
r
l
R
NOTE: Orient the red markings  
(usually zigzag) on the IDE  
ribbon cable to PIN 1.  
PIN 1  
PRI_IDE  
P5LD2 SE IDE Connector  
ASUS P5LD2 SE  
2-25  
3. Serial ATA connectors (7-pin SATA1 [red], SATA2 [red],  
SATA3 [black], SATA4 [black])  
These connectors are for the Serial ATA signal cables for Serial ATA  
hard disk drives.  
SATA1 SATA4  
i
i
R
SATA2 SATA3  
P5LD2 SE SATA Connectors  
Important note on Serial ATA  
When using the connectors in Standard IDE mode, connect the primary  
(boot) hard disk drive to the SATA1 or SATA2 connector. Refer to the  
table below for the recommended SATA hard disk drive connections.  
Serial ATA hard disk drive connection  
Connector  
Color  
Setting  
Use  
SATA1/SATA2  
SATA3/SATA4  
Red  
Master  
Slave  
Boot disk  
Data disk  
Black  
2-26  
Chapter 2: Hardware information  
4. Optical drive audio connector (4-pin CD)  
This connector is for the 4-pin audio cable that connects to the audio  
connector at the back of the optical drive.  
i
i
R
CD(Black)  
P5LD2 SE Internal Audio Connector  
5. Front panel audio connector (10-1 pin AAFP)  
This connector is for a chassis-mounted front panel audio I/O module  
that supports HD Audio standard. Connect one end of the front panel  
audio I/O module cable to this connector.  
AAFP  
Azalia  
compliant definition  
Legacy AC’97  
compliant definition  
ri
i
P5LD2 SE Analog Front Panel Connector  
We recommend that you connect a high‑definition front panel audio  
module to this connector to avail of the motherboard high‑definition  
audio capability.  
If you want to connect a high‑definition front panel audio module to  
this connector, make sure that the HD Audio Controller item in the  
BIOS is set to [Enabled]. See page 4-27 for details.  
ASUS P5LD2 SE  
2-27  
6. USB port connectors (10-1 pin USB56, USB78)  
These connectors are for USB 2.0 ports. Connect the USB/GAME  
module cable to any of these connectors, then install the module to a  
slot opening at the back of the system chassis. These USB connectors  
comply with USB 2.0 specification that supports up to 480 Mbps  
connection speed.  
i
R
USB56  
USB78  
1
1
P5LD2 SE USB 2.0 Connectors  
For Wireless Edition, the connector USB78 is spared to fix the WiFi  
card, so it is not available for connecting any USB/GAME module.  
7. GAME/MIDI port connector (16-1 pin GAME)  
This connector is for a GAME/MIDI port. Connect the USB/GAME  
module cable to this connector, then install the module to a slot  
opening at the back of the system chassis. The GAME/MIDI port  
connects a joystick or game pad for playing games, and MIDI devices  
for playing or editing audio files.  
r
GAME  
P5LD2 SE Game Connector  
2-28  
Chapter 2: Hardware information  
8. CPU, Chassis, and Power Fan connectors  
(4-pin CPU_FAN, 3-pin CHA_FAN1, PWR_FAN)  
The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W  
max.) or a total of 1 A ~ 3.48 A (41.76 W max.) at +12V. Connect the  
fan cables to the fan connectors on the motherboard, making sure that  
the black wire of each cable matches the ground pin of the connector.  
DO NOT forget to connect the fan cables to the fan connectors. Insufficient  
air flow inside the system may damage the motherboard components.  
These are not jumpers! DO NOT place jumper caps on the fan connectors!  
CPU_FAN  
PWR_FAN  
GND  
CPU FAN PWR  
CPU FAN IN  
CPU FAN PWM  
GND  
+12V  
Rotation  
i
R
CHA_FAN1  
GND  
+12V  
Rotation  
P5LD2 SE Fan Connectors  
Only the CPU_FAN connector supports the ASUS Q-Fan feature.  
9. Chassis intrusion connector (4-1 pin CHASSIS)  
This connector is for a chassis-mounted intrusion detection sensor or  
switch. Connect one end of the chassis intrusion sensor or switch cable  
to this connector. The chassis intrusion sensor or switch sends a high-  
level signal to this connector when a chassis component is removed or  
replaced. The signal is then generated as a chassis intrusion event.  
By default, the pins labeled “Chassis Signal” and “GND” are shorted  
with a jumper cap. Remove the jumper caps only when you intend to  
use the chassis intrusion detection feature.  
CHASSIS  
i
i
GND  
Chassis Signal  
R
+5VSB_MB  
(Default)  
P5LD2 SE Chassis Intrusion Connector  
ASUS P5LD2 SE  
2-29  
10. ATX power connectors (24-pin EATXPW, 4-pin ATX12V)  
These connectors are for ATX power supply plugs. The power supply  
plugs are designed to fit these connectors in only one orientation.  
Find the proper orientation and push down firmly until the connectors  
completely fit.  
Use of an ATX 12 V Specification 2.0‑compliant power supply unit  
(PSU) that provides a minimum power of 350 W is recommended for  
a fully‑configured system.  
DO NOT forget to connect the 4-pin ATX +12 V power plug;  
otherwise, the system will not boot up.  
Use of a PSU with a higher power output is recommended when  
configuring a system with more power consuming devices. The  
system may become unstable or may not boot up if the power is  
inadequate.  
EATXPWR  
+3 Volts  
+12 Volts  
+12 Volts  
+5V Standby  
Power OK  
Ground  
Ground  
+5 Volts  
+5 Volts  
+5 Volts  
-5 Volts  
Ground  
Ground  
Ground  
PSON#  
Ground  
-12 Volts  
+3 Volts  
ATX12V  
T
i
+12V DC  
GND  
+12V DC  
GND  
R
+5 Volts  
Ground  
+5 Volts  
Ground  
+3 Volts  
+3 Volts  
P5LD2 SE ATX Power Connectors  
2-30  
Chapter 2: Hardware information  
11. System panel connector (20-1 pin PANEL)  
This connector supports several chassis-mounted functions.  
SPEAKER  
PLED  
PANEL  
R
RESET  
IDE_LED  
PWRSW  
* Requires an ATX power supply.  
P5LD2 SE System Panel Connector  
The sytem panel connector is color-coded for easy connection. Refer to  
the connector description below for details.  
System power LED (Green 3-pin PLED)  
This 3-pin connector is for the system power LED. Connect the  
chassis power LED cable to this connector. The system power LED  
lights up when you turn on the system power, and blinks when the  
system is in sleep mode.  
Hard disk drive activity LED (Red 2-pin IDE_LED)  
This 2-pin connector is for the HDD Activity LED. Connect the HDD  
Activity LED cable to this connector. The IDE LED lights up or flashes  
when data is read from or written to the HDD.  
System warning speaker (Orange 4-pin SPEAKER)  
This 4-pin connector is for the chassis-mounted system warning  
speaker. The speaker allows you to hear system beeps and warnings.  
ATX power button/soft-off button (Yellow 2-pin PWRSW)  
This connector is for the system power button. Pressing the power  
button turns the system on or puts the system in sleep or soft-off  
mode depending on the BIOS settings. Pressing the power switch for  
more than four seconds while the system is ON turns the system OFF.  
Reset button (Blue 2-pin RESET)  
This 2-pin connector is for the chassis-mounted reset button for  
system reboot without turning off the system power.  
ASUS P5LD2 SE  
2-31  
2-32  
Chapter 2: Hardware information  
This chapter describes the power up  
sequence, the vocal POST messages,  
and ways of shutting down the  
system.  
Powering up  
3
Chapter summary  
3
3.1  
Starting up for the first time................................................ 3-1  
3.2  
Powering off the computer................................................... 3-2  
ASUS P5LD2 SE  
3.1  
Starting up for the first time  
1. After making all the connections, replace the system case cover.  
2. Make sure that all switches are off.  
3. Connect the power cord to the power connector at the back of the  
system chassis.  
4. Connect the power cord to a power outlet that is equipped with a  
surge protector.  
5. Turn on the devices in the following order:  
a. Monitor  
b. External SCSI devices (starting with the last device on the chain)  
c. System power  
6. After applying power, the system power LED on the system front  
panel case lights up. For systems with ATX power supplies, the system  
LED lights up when you press the ATX power button. If your monitor  
complies with “green” standards or if it has a “power standby”  
feature, the monitor LED may light up or switch between orange and  
green after the system LED turns on.  
The system then runs the Power-On Self-Test (POST). While the tests  
are running, the BIOS beeps (see BIOS beep codes table below) or  
additional messages appear on the screen. If you do not see anything  
within 30 seconds from the time you turned on the power, the system  
may have failed a power-on test. Check the jumper settings and  
connections or call your retailer for assistance.  
AMI BIOS beep codes  
Beep Description  
One beep  
Error  
Keyboard controller error  
Refresh Time error  
No master drive detected  
Two continuous beeps followed by  
two short beeps  
Floppy controller failure  
Two continuous beeps followed by  
four short beeps  
Hardware component failure  
7. At power on, hold down the <Del> key to enter the BIOS Setup. Follow  
the instructions in Chapter 4.  
ASUS P5LD2 SE  
3-1  
3.2  
Powering off the computer  
3.2.1 Using the OS shut down function  
If you are using Windows® 2000:  
1. Click the Start button then click Shut Down...  
2. Make sure that the Shut Down option button is selected, then click  
the OK button to shut down the computer.  
3. The power supply should turn off after Windows® shuts down.  
If you are using Windows® XP:  
1. Click the Start button then select Turn Off Computer.  
2. Click the Turn Off button to shut down the computer.  
3. The power supply should turn off after Windows® shuts down.  
3.2.2 Using the dual function power switch  
While the system is ON, pressing the power switch for less than four  
seconds puts the system in sleep mode or soft-off mode, depending on the  
BIOS setting. Pressing the power switch for more than four seconds lets  
the system enter the soft-off mode regardless of the BIOS setting. Refer to  
section “4.5 Power Menu” in Chapter 4 for details.  
3-2  
Chapter 3: Powering up  
This chapter tells how to change  
the system settings through the BIOS  
Setup menus. Detailed descriptions  
of the BIOS parameters are also  
provided.  
BIOS setup  
4
Chapter summary  
4
4.1  
4.2  
4.3  
4.4  
4.5  
4.6  
4.7  
Managing and updating your BIOS ........................................ 4-1  
BIOS setup program............................................................ 4-11  
Main menu........................................................................... 4-14  
Advanced menu.................................................................. 4-19  
Power menu........................................................................ 4-30  
Boot menu.......................................................................... 4-35  
Exit menu............................................................................ 4-39  
ASUS P5LD2 SE  
4.1  
Managing and updating your BIOS  
The following utilities allow you to manage and update the motherboard  
Basic Input/Output System (BIOS) setup.  
1. ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable floppy  
disk.)  
2. ASUS CrashFree BIOS 2 (Updates the BIOS using a bootable floppy  
disk or the motherboard support CD when the BIOS file fails or gets  
corrupted.)  
3. ASUS EZ Flash (Updates the BIOS in DOS mode using a floppy disk or  
the motherboard support CD.)  
4. ASUS Update (Updates the BIOS in Windows® environment.)  
Refer to the corresponding sections for details on these utilities.  
Save a copy of the original motherboard BIOS file to a bootable floppy  
disk in case you need to restore the BIOS in the future. Copy the original  
motherboard BIOS using the ASUS Update or AFUDOS utilities.  
4.1.1 Creating a bootable floppy disk  
1. Do one of the following to create a bootable floppy disk.  
DOS environment  
a. Insert a 1.44MB floppy disk into the drive.  
b. At the DOS prompt, type format A:/Sthen press <Enter>.  
Windows® XP environment  
a. Insert a 1.44 MB floppy disk to the floppy disk drive.  
b. Click Start from the Windows® desktop, then select My Computer.  
c. Select the 3 1/2 Floppy Drive icon.  
d. Click File from the menu, then select Format. A Format 3 1/2  
Floppy Disk window appears.  
e. Windows® XP users: Select Create an MS-DOS startup disk from  
the format options field, then click Start.  
ASUS P5LD2 SE  
4-1  
Windows® 2000 environment  
To create a set of boot disks for Windows® 2000:  
a. Insert a formatted, high density 1.44 MB floppy disk into the drive.  
b. Insert the Windows® 2000 CD to the optical drive.  
c. Click Start, then select Run.  
d. In the Open field, type D:\bootdisk\makeboot a:  
assuming that D: is your optical drive.  
e. Press <Enter>, then follow screen instructions to continue.  
2. Copy the original or the latest motherboard BIOS file to the bootable  
floppy disk.  
4.1.2 AFUDOS utility  
The AFUDOS utility allows you to update the BIOS file in DOS environment  
using a bootable floppy disk with the updated BIOS file. This utility also  
allows you to copy the current BIOS file that you can use as backup when  
the BIOS fails or gets corrupted during the updating process.  
Copying the current BIOS  
To copy the current BIOS file using the AFUDOS utility:  
Make sure that the floppy disk is not write‑protected and has at  
least 1.2 MB free space to save the file.  
The succeeding BIOS screens are for reference only. The actual BIOS  
screen displays may not be same as what’s shown here.  
1. Copy the AFUDOS utility (afudos.exe) from the motherboard support  
CD to the bootable floppy disk you created earlier.  
2. Boot the system in DOS mode, then at the prompt type:  
afudos /o[filename]  
where the [filename] is any user‑assigned filename with not more  
than eight alphanumeric characters for the main filename and three  
alphanumeric characters for the extension name.  
A:\>afudos /oOLDBIOS1.ROM  
Main filename Extension name  
4-2  
Chapter 4: BIOS setup  
3. Press <Enter>. The utility copies the current BIOS file to the floppy  
disk.  
A:\>afudos /oOLDBIOS1.ROM  
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))  
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.  
Reading flash ..... done  
Write to file...... ok  
A:\>  
The utility returns to the DOS prompt after copying the current BIOS  
file.  
Updating the BIOS file  
To update the BIOS file using the AFUDOS utility:  
1. Visit the ASUS website (www.asus.com) and download the latest BIOS  
file for the motherboard. Save the BIOS file to a bootable floppy disk.  
Write the BIOS filename on a piece of paper. You need to type the exact  
BIOS filename at the DOS prompt.  
2. Copy the AFUDOS utility (afudos.exe) from the motherboard support  
CD to the bootable floppy disk you created earlier.  
3. Boot the system in DOS mode, then at the prompt type:  
afudos /i[filename]  
where [filename] is the latest or the original BIOS file on the bootable  
floppy disk.  
A:\>afudos /iP5LD2-SE.ROM  
ASUS P5LD2 SE  
4-3  
4. The utility verifies the file and starts updating the BIOS.  
A:\>afudos /iP5LD2-SE.ROM  
AMI Firmware Update Utility - Version 1.19  
Copyright (C) 2003 American Megatrends, Inc. All rights reserved.  
WARNING!! Do not turn off power during flash BIOS  
Reading file ..... done  
Erasing flash .... done  
Search bootblock version:  
0%  
100%  
DO NOT shut down or reset the system while updating the BIOS to  
prevent system boot failure!  
5. The utility returns to the DOS prompt after the BIOS update process is  
completed. Reboot the system from the hard disk drive.  
A:\>afudos /iP5LD2-SE.ROM  
AMI Firmware Update Utility - Version 1.19  
Copyright (C) 2003 American Megatrends, Inc. All rights reserved.  
WARNING!! Do not turn off power during flash BIOS  
Reading file ..... done  
Erasing flash .... done  
Search bootblock version:  
0%  
100%  
Advance Check ........  
Erasing flash ..... done  
Writing flash ..... done  
Verifying flash ... done  
Please restart your computer  
4-4  
Chapter 4: BIOS setup  
4.1.3 ASUS CrashFree BIOS 2 utility  
The ASUS CrashFree BIOS 2 is an auto recovery tool that allows you to  
restore the BIOS file when it fails or gets corrupted during the updating  
process. You can update a corrupted BIOS file using the motherboard  
support CD or the floppy disk that contains the updated BIOS file.  
Prepare the motherboard support CD or the floppy disk containing  
the updated motherboard BIOS before using this utility.  
Make sure that you rename the original or updated BIOS file in the  
floppy disk to P5LD2-SE.ROM.  
Recovering the BIOS from a floppy disk  
To recover the BIOS from a floppy disk:  
1. Turn on the system.  
2. Insert the floppy disk with the original or updated BIOS file to the  
floppy disk drive.  
3. The utility displays the following message and automatically checks  
the floppy disk for the original or updated BIOS file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for floppy...  
When found, the utility reads the BIOS file and starts flashing the  
corrupted BIOS file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for floppy...  
Floppy found!  
Reading file “P5LD2-SE.ROM”. Completed.  
Start flashing...  
DO NOT shut down or reset the system while updating the BIOS! Doing  
so can cause system boot failure!  
4. Restart the system after the utility completes the updating process.  
ASUS P5LD2 SE  
4-5  
Recovering the BIOS from the support CD  
To recover the BIOS from the support CD:  
1. Remove any floppy disk from the floppy disk drive, then turn on the  
system.  
2. Insert the support CD to the optical drive.  
3. The utility displays the following message and automatically checks  
the floppy disk for the original or updated BIOS file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for floppy...  
When no floppy disk is found, the utility automatically checks the  
optical drive for the original or updated BIOS file. The utility then  
updates the corrupted BIOS file.  
Bad BIOS checksum. Starting BIOS recovery...  
Checking for floppy...  
Floppy not found!  
Checking for CD-ROM...  
CD-ROM found!  
Reading file “P5LD2-SE.ROM”. Completed.  
Start flashing...  
DO NOT shut down or reset the system while updating the BIOS! Doing  
so can cause system boot failure!  
4. Restart the system after the utility completes the updating process.  
The recovered BIOS may not be the latest BIOS version for this  
motherboard. Visit the ASUS website (www.asus.com) to download the  
latest BIOS file.  
4-6  
Chapter 4: BIOS setup  
4.1.4 ASUS EZ Flash utility  
The ASUS EZ Flash feature allows you to update the BIOS without having  
to go through the long process of booting from a floppy disk and using  
a DOS-based utility. The EZ Flash utility is built-in the BIOS chip so it is  
accessible by pressing <Alt> + <F2> during the Power-On Self-Test (POST).  
To update the BIOS using EZ Flash:  
1. Visit the ASUS website (www.asus.com) to download the latest BIOS  
file for the motherboard and rename the file as P5LD2-SE.ROM.  
2. Save the BIOS file to a floppy disk, then restart the system.  
3. Press <Alt> + <F2> during POST to display the following.  
EZFlash starting BIOS update  
Checking for floppy...  
4. Insert the floppy disk that contains the BIOS file to the floppy disk  
drive. When the correct BIOS file is found, EZ Flash performs the BIOS  
update process and automatically reboots the system when done.  
EZFlash starting BIOS update  
Checking for floppy...  
Floppy found!  
Reading file “P5LD2-SE.ROM”. Completed.  
Start erasing.......|  
Start programming...|  
Flashed successfully. Rebooting.  
Do not shut down or reset the system while updating the BIOS to  
prevent system boot failure!  
A “Floppy not found!” error message appears if there is no floppy  
disk in the drive. A “P5LD2-SE.ROM not found!” error message  
appears if the correct BIOS file is not found in the floppy disk. Make  
sure that you rename the BIOS file as P5LD2‑SE.ROM.  
ASUS P5LD2 SE  
4-7  
4.1.5 ASUS Update utility  
The ASUS Update is a utility that allows you to manage, save, and update  
the motherboard BIOS in Windows® environment. The ASUS Update utility  
allows you to:  
Save the current BIOS file  
Download the latest BIOS file from the Internet  
Update the BIOS from an updated BIOS file  
Update the BIOS directly from the Internet, and  
View the BIOS version information.  
This utility is available in the support CD that comes with the motherboard  
package.  
ASUS Update requires an Internet connection either through a network  
or an Internet Service Provider (ISP).  
Installing ASUS Update  
To install ASUS Update:  
1. Place the support CD in the optical drive. The Drivers menu appears.  
2. Click the Utilities tab, then click Install ASUS Update VX.XX.XX. See  
page 5-3 for the Utilities screen menu.  
3. The ASUS Update utility is copied to your system.  
Quit all Windows® applications before you update the BIOS using this  
utility.  
4-8  
Chapter 4: BIOS setup  
Updating the BIOS through the Internet  
To update the BIOS through the Internet:  
1. Launch the ASUS Update utility from the Windows® desktop by clicking  
Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS  
Update main window appears.  
2. Select Update BIOS from  
the Internet option from the  
drop-down menu, then click  
Next.  
3. Select the ASUS FTP site  
nearest you to avoid network  
traffic, or click Auto Select.  
Click Next.  
ASUS P5LD2 SE  
4-9  
4. From the FTP site, select the  
BIOS version that you wish to  
download. Click Next.  
5. Follow the screen instructions to  
complete the update process.  
The ASUS Update utility is  
capable of updating itself  
through the Internet. Always  
update the utility to avail all  
its features.  
Updating the BIOS through a BIOS file  
To update the BIOS through a BIOS file:  
1. Launch the ASUS Update utility from the Windows® desktop by  
clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The  
ASUS Update main window appears.  
2. Select Update BIOS from a file  
option from the drop-down menu,  
then click Next.  
3. Locate the BIOS file from the  
Open window, then click Open.  
4. Follow the screen instructions to  
complete the update process.  
4-10  
Chapter 4: BIOS setup  
4.2  
BIOS setup program  
This motherboard supports a programmable firmware chip that you can  
update using the provided utility described in section “4.1 Managing and  
updating your BIOS.”  
Use the BIOS Setup program when you are installing a motherboard,  
reconfiguring your system, or prompted to “Run Setup”. This section  
explains how to configure your system using this utility.  
Even if you are not prompted to use the Setup program, you can change  
the configuration of your computer in the future. For example, you can  
enable the security password feature or change the power management  
settings. This requires you to reconfigure your system using the BIOS Setup  
program so that the computer can recognize these changes and record  
them in the CMOS RAM or the firmware hub.  
The firmware hub on the motherboard stores the Setup utility. When you  
start up the computer, the system provides you with the opportunity to  
run this program. Press <Del> during the Power-On Self-Test (POST) to  
enter the Setup utility; otherwise, POST continues with its test routines.  
If you wish to enter Setup after POST, restart the system by pressing  
<Ctrl> + <Alt> + <Del>, or by pressing the reset button on the system  
chassis. You can also restart by turning the system off and then back on.  
Do this last option only if the first two failed.  
The Setup program is designed to make it as easy to use as possible. Being  
a menu-driven program, it lets you scroll through the various sub-menus and  
make your selections from the available options using the navigation keys.  
The default BIOS settings for this motherboard apply to most  
conditions to ensure optimum performance. If the system becomes  
unstable after changing any BIOS settings, load the default settings  
to ensure system compatibility and stability. Select the Load Setup  
Defaults item under the Exit Menu. See section “4.7 Exit Menu.”  
The BIOS setup screens shown in this section are for reference  
purposes only, and may not exactly match what you see on your  
screen.  
Visit the ASUS website (www.asus.com) to download the latest BIOS  
file for this motherboard.  
ASUS P5LD2 SE  
4-11  
4.2.1 BIOS menu screen  
Menu items  
Menu bar  
Configuration fields  
General help  
System Time  
System Date  
Legacy Diskette A  
[11:51:19]  
[Thu 09/22/2005]  
[1.44M, 3.5 in]  
Use [ENTER], [TAB]  
or [SHIFT-TAB] to  
select a field.  
Primary IDE Master  
Primary IDE Slave  
Third IDE Master  
Third IDE Slave  
Fourth IDE Master  
Fourth IDE Slave  
IDE Configuration  
:
[ST320413A]  
Use [+] or [-] to  
:
:
:
:
:
[ASUS CD-S520/A]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
configure system time.  
Select Screen  
Select Item  
System Information  
+-  
Change Field  
Tab Select Field  
F1  
General Help  
F10 Save and Exit  
ESC Exit  
Sub-menu items  
Navigation keys  
4.2.2 Menu bar  
The menu bar on top of the screen has the following main items:  
Main  
For changing the basic system configuration  
Advanced  
Power  
For changing the advanced system settings  
For changing the Advanced Power Management (APM)  
configuration  
Boot  
Exit  
For changing the system boot configuration  
For selecting the exit options and loading default  
settings  
To select an item on the menu bar, press the right or left arrow key on the  
keyboard until the desired item is highlighted.  
4.2.3 Navigation keys  
At the bottom right corner of a menu screen are the navigation keys for  
that particular menu. Use the navigation keys to select items in the menu  
and change the settings.  
Some of the navigation keys differ from one screen to another.  
4-12  
Chapter 4: BIOS setup  
4.2.4 Menu items  
The highlighted item on the menu bar  
displays the specific items for that  
menu. For example, selecting Main  
shows the Main menu items.  
System Time  
System Date  
Legacy Diskette  
Language  
[11:10:19]  
Use [ENTER], [TAB]  
or [SHIFT-TAB] to  
[Thu 03/27/2003]  
[1.44M, 3.5 in]  
[English]  
A
select  
a
field.  
Use [+] or [-] to  
configure system time.  
Primary IDE Master  
Primary IDE Slave  
Secondary IDE Master  
Secondary IDE Slave  
Third IDE Master  
Fourth IDE Master  
IDE Configuration  
:[ST320413A]  
:[ASUS CD-S340]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
Select Screen  
Select Item  
Change Field  
+-  
System Information  
Tab Select Field  
F1  
General Help  
F10 Save and Exit  
ESC Exit  
The other items (Advanced, Power,  
Boot, and Exit) on the menu bar have  
their respective menu items.  
Main menu items  
4.2.5 Sub-menu items  
A solid triangle before each item on any menu screen means that the  
item has a sub-menu. To display the sub-menu, select the item and press  
<Enter>.  
4.2.6 Configuration fields  
These fields show the values for the menu items. If an item is user‑  
configurable, you can change the value of the field opposite the item. You  
cannot select an item that is not user‑configurable.  
A configurable field is enclosed in brackets, and is highlighted when  
selected. To change the value of a field, select it then press <Enter> to  
display a list of options. Refer to “4.2.7 Pop-up window.”  
4.2.7 Pop-up window  
Select a menu item then press <Enter> to display a pop-up window with  
the configuration options for that item.  
4.2.8 Scroll bar  
Advanced Chipset settings  
WARNING: Setting wrong values in the sections below  
A scroll bar appears on the right side  
may cause system to malfunction.  
Configure DRAM Timing by SPD  
Memory Acceleration Mode  
DRAM Idle Timer  
[Enabled]  
[Auto]  
of a menu screen when there are items  
that do not fit on the screen. Press the  
Up/Down arrow keys or <Page Up>  
/<Page Down> keys to display the  
other items on the screen.  
[Auto]  
DRAm Refresh Rate  
Graphic Adapter Priority  
Graphics Aperture Size  
Spread Spectrum  
[
64 MB]  
[Enabled]  
[Enabled]  
[1.4]  
Select Screen  
Select Item  
ICH Delayed Transaction  
MPS Revision  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
Pop-up window  
4.2.9 General help  
Scroll bar  
At the top right corner of the menu  
screen is a brief description of the  
selected item.  
ASUS P5LD2 SE  
4-13  
4.3  
Main menu  
When you enter the BIOS Setup program, the Main menu screen appears,  
giving you an overview of the basic system information.  
Refer to section “4.2.1 BIOS menu screen” for information on the menu  
screen items and how to navigate through them.  
System Time  
[11:51:19]  
[Thu 09/22/2005]  
[1.44M, 3.5 in]  
Use [ENTER], [TAB]  
or [SHIFT-TAB] to  
select a field.  
System Date  
Legacy Diskette A  
Primary IDE Master  
Primary IDE Slave  
Third IDE Master  
Third IDE Slave  
Fourth IDE Master  
Fourth IDE Slave  
IDE Configuration  
:
:
:
:
:
:
[ST320413A]  
Use [+] or [-] to  
[ASUS CD-S520/A]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
configure system time.  
Select Screen  
Select Item  
System Information  
+-  
Change Field  
Tab Select Field  
F1  
General Help  
F10 Save and Exit  
ESC Exit  
4.3.1 System Time [xx:xx:xx]  
Allows you to set the system time.  
4.3.2 System Date [Day xx/xx/xxxx]  
Allows you to set the system date.  
4.3.3 Legacy Diskette A [1.44M, 3.5 in.]  
Sets the type of floppy drive installed. Configuration options: [Disabled]  
[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.]  
[2.88M, 3.5 in.]  
4-14  
Chapter 4: BIOS setup  
4.3.4 Primary, Third and Fourth IDE Master/Slave  
The BIOS automatically detects the connected IDE devices. There is a  
separate sub-menu for each IDE device. Select a device item, then press  
<Enter> to display the IDE device information.  
Primary IDE Master  
Select the type  
Device  
: Hard Disk  
: ST320413A  
: 20.0GB  
of device connected  
to the system.  
Vendor  
Size  
LBA Mode  
Block Mode  
PIO Mode  
Async DMA  
Ultra DMA  
: Supported  
: 16 Sectors  
: 4  
: MultiWord DMA-2  
: Ultra DMA-5  
SMART Monitoring: Supported  
Type  
[Auto]  
[Auto]  
Select Screen  
Select Item  
LBA/Large Mode  
Block(Multi-sector Transfer) [Auto]  
+-  
F1  
Change Option  
General Help  
PIO Mode  
DMA Mode  
[Auto]  
[Auto]  
F10 Save and Exit  
ESC Exit  
SMART Monitoring  
32Bit Data Transfer  
[Auto]  
[Disabled]  
The BIOS automatically detects the values opposite the dimmed items  
(Device, Vendor, Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra  
DMA, and SMART monitoring). These values are not user‑configurable.  
These items show N/A if no IDE device is installed in the system.  
Type [Auto]  
Selects the type of IDE drive. Setting to [Auto] allows automatic selection  
of the appropriate IDE device type. Select [CDROM] if you are specifically  
configuring a CD‑ROM drive. Select [ARMD] (ATAPI Removable Media  
Device) if your device is either a ZIP, LS-120, or MO drive.  
Configuration options: [Not Installed] [Auto] [CDROM] [ARMD]  
LBA/Large Mode [Auto]  
Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode  
if the device supports this mode, and if the device was not previously  
formatted with LBA mode disabled. Configuration options: [Disabled]  
[Auto]  
Block (Multi-sector Transfer) [Auto]  
Enables or disables data multi-sectors transfers. When set to [Auto], the  
data transfer from and to the device occurs multiple sectors at a time if  
the device supports multi-sector transfer feature. When set to [Disabled],  
the data transfer from and to the device occurs one sector at a time.  
Configuration options: [Disabled] [Auto]  
ASUS P5LD2 SE  
4-15  
PIO Mode [4]  
Selects the PIO mode.  
Configuration options: [Auto] [0] [1] [2] [3] [4]  
DMA Mode [Auto]  
Selects the DMA mode.  
Configuration options: [Auto] [SWDMA0] [SWDMA1] [SWDMA2]  
[MWDMA0] [MWDMA1] [MWDMA2] [UDMA0] [UDMA1] [UDMA2] [UDMA3]  
[UDMA4] [UDMA5]  
SMART Monitoring [Auto]  
Sets the Smart Monitoring, Analysis, and Reporting Technology.  
Configuration options: [Auto] [Disabled] [Enabled]  
32Bit Data Transfer [Disabled]  
Enables or disables 32-bit data transfer.  
Configuration options: [Disabled] [Enabled]  
4.3.5 IDE Configuration  
The items in this menu allow you to set or change the configurations for  
the IDE devices installed in the system. Select an item then press <Enter>  
if you wish to configure the item.  
IDE Configuration  
When in AHCI/  
RAID mode SATA  
controller is  
forced to Native  
mode.  
Configure SATA As  
[Standard IDE]  
[Enhanced Mode]  
Onboard IDE Operate Mode  
Enhanced Mode Support On [S-ATA]  
IDE Detect Time Out (Sec)  
[35]  
Configure SATA As [Standard IDE]  
Sets the configuration for the Serial ATA connectors supported by the  
Southbridge chip.  
The AHCI allows the onboard storage driver to enable advanced Serial  
ATA features that enhance storage performance on random workloads by  
allowing the drive to internally optimize the order of commands.  
4-16  
Chapter 4: BIOS setup  
If you want to use the Serial ATA hard disk drives as Parallel ATA physical  
storage devices, set this item to [Standard IDE].  
If you want the Serial ATA hard disk drives to use the Advanced Host  
Controller Interface (AHCI), set this item to [AHCI]. For details on AHCI, go  
to:  
www.intel.com/support/chipsets/imst/sb/CS-012304.htm  
www.intel.com/support/chipsets/imst/sb/CS-012305.htm  
The SATA controller is set to Native mode when this item is set to [AHCI].  
Onboard IDE Operate Mode [Enhanced Mode]  
Allows selection of the IDE operation mode depending on the installed  
operating system (OS). Set to [Enhanced Mode] if you are using native OS  
including Windows® 2000/XP. Configuration options: [Disabled] [Compatible  
Mode] [Enhanced Mode]  
Enhanced Mode Support On [S-ATA]  
Allows you to use native OS on Serial ATA and Parallel ATA ports. It is  
recommend that you do not change the default setting for better OS  
compatibility. In this setting, you may use legacy OS on the Parallel  
ATA ports only if you do not install any Serial ATA device.  
The S-ATA+P-ATA and P-ATA options are for advanced users only.  
If you set to any of these options and encountered problems, revert  
to the default setting S-ATA. Configuration options: [S‑ATA+P‑ATA]  
[S-ATA] [P-ATA]  
The Onboard IDE Operate Mode and its sub-menu items appear only  
when the Configure SATA As item is set to [Standard IDE].  
ASUS P5LD2 SE  
4-17  
ALPE and ASP [Disabled]  
Allows you to enable or disable the Agressive Link Power Management  
(ALPE) and Aggressive Slumber/Partial (ASP) management features.  
Configuration options: [Disabled] [Enabled]  
The ALPE and ASP item appears only when the Configure SATA As item  
is set to [AHCI].  
IDE Detect Time Out [35]  
Selects the time out value for detecting ATA/ATAPI devices.  
Configuration options: [0] [5] [10] [15] [20] [25] [30] [35]  
4.3.6 System Information  
This menu gives you an overview of the general system specifications. The  
BIOS automatically detects the items in this menu.  
AMIBIOS  
Version  
: 0105  
Build Date : 10/27/05  
Processor  
Type  
: Genuine Intel(R) CPU 3.20GHz  
Speed  
Count  
: 3200 MHz  
: 1  
System Memory  
Total  
: 1024MB  
Appropriated : 0MB  
Select Screen  
Select Item  
Available  
: 1024MB  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
AMI BIOS  
Displays the auto-detected BIOS information.  
Processor  
Displays the auto‑detected CPU specification.  
System Memory  
Displays the auto-detected total, appropriated (in use), and available  
system memory.  
4-18  
Chapter 4: BIOS setup  
4.4  
Advanced menu  
The Advanced menu items allow you to change the settings for the CPU  
and other system devices.  
Take caution when changing the settings of the Advanced menu items.  
Incorrect field values can cause system malfunction.  
JumperFree Configuration  
USB Configuration  
Adjust system  
frequency/voltage.  
CPU Configuration  
Chipset  
Onboard Devices Configuration  
PCIPnP  
4.4.1 JumperFree Configuration  
Select the targe CPU  
frequency, and the  
relevant parameters  
will be auto-adjusted.  
Frequencies higher  
than CPU manufacturer  
recommends are not  
guaranteed to be  
Configure System Frequency/Voltage  
AI Overclocking  
[Auto]  
stable. If the system  
becomes unstable,  
return to the default.  
AI Overclocking [Auto]  
Allows you to select the overclocking options to achieve the desired CPU  
internal frequency. Select one of the preset overclocking configuration  
options.  
Manual - allows you to individually set overclocking parameters.  
Auto - loads the optimal settings for the system.  
Overclock Profile ‑ loads overclocking profiles with optimal  
parameters for stability when overclocking.  
ASUS P5LD2 SE  
4-19  
The following item appears only when you set the AI Overclocking item  
to [Manual].  
CPU Frequency [XXX]  
Displays the frequency sent by the clock generator to the system bus and  
PCI bus. The value of this item is auto-detected by the BIOS. Use the <+>  
and <-> keys to adjust the CPU frequency. You can also type the desired  
CPU frequency using the numeric keypad. The values range from 100  
to 450. Refer to the table below for the correct Front Side Bus and CPU  
External Frequency settings.  
FSB/CPU External Frequency Synchronization  
Front Side Bus  
CPU External Frequency  
FSB 1066  
FSB 800  
FSB 533  
266 MHz  
200 MHz  
133 MHz  
DRAM Frequency [Auto]  
Allows you to set the DDR operating frequency. The available configuration  
options vary depending on the Front Side Bus settings. Refer to the table  
below for details.  
Available DRAM frequency options in various FSB settings  
FSB  
Configuration options  
DDR2- DDR2- DDR2- DDR2-  
Auto  
DDR2- DDR2- DDR2-  
400  
533  
600*  
667  
711*  
800*  
889*  
FSB 1066  
FSB 800  
FSB 533  
* Provided for overclocking purpose only.  
Selecting a very high DRAM frequency may cause the system to become  
unstable! If this happens, revert to the default setting.  
PCI Express Frequency [Auto]  
Allows you to set the PCI Express frequency. This item is set to [Auto] by  
default. Configuration options: [Auto] [90] [91]...[150]  
PCI Clock Synchronization Mode [Auto]  
Allows you to synchronize the PCI frequency with the PCI Express or CPU  
frequency. Configuration options: [To CPU] [33.33MHz] [Auto]  
4-20  
Chapter 4: BIOS setup  
Memory Voltage [Auto]  
Allows you to select the DDR2 reference voltage.  
Configuration options: [Auto] [1.80V] [1.90V] [1.95V] [2.00V]  
Refer to the DDR2 documentation before adjusting the memory voltage.  
Setting a very high memory voltage may damage the memory module(s)!  
CPU VCore Voltage [Auto]  
Allows you to select the CPU VCore voltage. Configuration options: [Auto]  
[1.5500V] [1.5375V] [1.5250V] [1.5125V] [1.5000V] [1.4875V]  
[1.4750V] [1.4625V] [1.4500V] [1.4375V] [1.4250V] [1.4125V]  
[1.4000V] [1.3875V] [1.3750V]  
Refer to the CPU documentation before setting the CPU Vcore voltage.  
Setting a high Vcore voltage may damage the CPU!  
FSB Termination Voltage [Auto]  
Allows you to select the front side bus termination voltage.  
Configuration options: [Auto] [1.20V] [1.30V] [1.40V] [1.50V]  
MCH Chipset Voltage [Auto]  
Allows you to set the Northbridge chip voltage.  
Configuration options: [Auto] [1.50V] [1.60V]  
ICH Chipset Voltage [Auto]  
Allows you to set the Southbridge chip voltage.  
Configuration options: [Auto] [1.05V] [1.20V]  
Setting the MCH/ICH chipset voltage arbitrarily may damage the chipset!  
We recommend that you set these items to the default [Auto].  
The following item appears only when the AI Overclocking item is set to  
[Overclock Profile].  
Overclock Options [Overclock 5%]  
Allows you to overclock the CPU speed through the available preset values.  
Configuration options: [Overclock 5%] [FSB888/DDR2‑667]  
[Overclock 10%] [FSB960/DDR2-800]  
[Overclock 15%] [FSB1280/DDR2-800]  
[Overclock 20%] [FSB1333/DDR2-667]  
[Overclock 30%] [FSB1333/DDR2-834]  
ASUS P5LD2 SE  
4-21  
4.4.2 USB Configuration  
The items in this menu allows you to change the USB-related features.  
Select an item then press <Enter> to display the configuration options.  
USB Configuration  
Enables USB host  
controllers.  
Module Version - 2.24.0-F.4  
USB Devices Enabled: None  
USB Function  
[Enabled]  
[Auto]  
[Enabled]  
[HiSpeed]  
[Disabled]  
Legacy USB Support  
USB 2.0 Controller  
USB 2.0 Controller Mode  
BIOS EHCI Hand-Off  
The Module Version and USB Devices Enabled items show the  
auto-detected values. If no USB device is detected, the item shows  
None.  
USB Function [Enabled]  
Allows the BIOS to auto-detect the number of USB ports in your system.  
Setting this item to [Disable] disables the USB device detection function.  
Configuration options: [Disabled] [Enabled]  
Legacy USB Support [Auto]  
Allows you to enable or disable support for legacy USB devices. Setting  
to [Auto] allows the system to detect the presence of USB devices at  
startup. If detected, the USB controller legacy mode is enabled. If no USB  
device is detected, the legacy USB support is disabled.  
Configuration options: [Disabled] [Enabled] [Auto]  
USB 2.0 Controller [Enabled]  
Allows you to enable or disable the USB 2.0 controller.  
Configuration options: [Enabled] [Disabled]  
USB 2.0 Controller Mode [HiSpeed]  
Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or  
FullSpeed (12 Mbps). Configuration options: [FullSpeed] [HiSpeed]  
BIOS EHCI Hand-Off [Disabled]  
Allows you to enable support for operating systems without an EHCI  
hand‑off feature. Configuration options: [Enabled] [Disabled]  
4-22  
Chapter 4: BIOS setup  
4.4.3 CPU Configuration  
The items in this menu show the CPU-related information that the BIOS  
automatically detects.  
Configure Advanced CPU settings  
Sets the ratio  
between CPU Core  
Clock and the FSB  
Frequency.  
NOTE: If an invalid  
ratio is set in CMOS  
then actual and  
setpoint values may  
differ.  
Manufacturer: Intel  
Brand String: Genuine Intel(R) CPU 3.20GHz  
Frequency  
FSB Speed  
: 3200 MHz  
: 800 MHz  
Cache L1  
Cache L2  
Cache L3  
: 16 KB  
: 1024 KB  
: 0 KB  
Ratio Actual Value: [16]  
Ratio CMOS Setting  
VID CMOS Setting:  
[ 18]  
[ 62]  
Select Screen  
Select Item  
CPU Lock Free  
[Auto]  
Microcode Updation  
Max CPUID Value Limit:  
Execute Disable Function  
Enhanced C1 Control  
[Enabled]  
[Disabled]  
[Disabled]  
[Auto]  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
CPU Internal Thermal Control [Auto]  
You can only adjust the Ratio CMOS Setting and VID CMOS Setting if you  
installed an unlocked CPU. Refer to the CPU documentation for details.  
Ratio CMOS Setting [ 18]  
Sets the ratio between the CPU Core Clock and the Front Side Bus  
frequency. The default value of this item is auto-detected by the BIOS. Use  
the <+> or <‑> keys to adjust the values. Configuration options: [8]...[28]  
VID CMOS Setting [ 62]  
Allows you to set the VID CMOS setting at which the processor is to run.  
The default value of this item is auto-detected by the BIOS. Use the <+> or  
<-> keys to adjust the values.  
The following item appears only when you install a CPU that supports the  
lock free feature. Only some latest CPUs support this feature.  
CPU Lock Free [Auto]  
Allows you to adjust the CPU multiplier to 14x. Setting this item to [Auto]  
allows the motherboard to automatically reduce the CPU multiplier value for  
more flexibility when increasing the external FSB.  
Configuration options: [Auto] [Disabled] [Enabled]  
Microcode Updation [Enabled]  
Allows you to enable or disable the microcode updation.  
Configuration options: [Disabled] [Enabled]  
ASUS P5LD2 SE  
4-23  
Max CPUID Value Limit [Disabled]  
Setting this item to [Enabled] allows legacy operating systems to boot  
even without support for CPUs with extended CPUID functions.  
Configuration options: [Disabled] [Enabled]  
Execute Disable Function [Disabled]  
Allows you to enable or disable the no execution on page protection  
technology. When enabled, the system forces the XD feature flag to always  
return to zero. Configuration options: [Disabled] [Enabled]  
Only some CPUs support C1E function.  
Enhanced C1 Control [Auto]  
When set to [Auto], the BIOS automatically checks CPU capability to enable  
the C1E support. In C1E mode, the CPU power consumption is lower when  
idle. Configuration options: [Auto] [Disabled]  
When AI Quiet is enabled, this item Enhanced C1 Control is automatically  
set to [Auto] and becomes non‑configurable. See page 4‑33.  
CPU Internal Thermal Control [Auto]  
Allows you to disable or set to auto the CPU Internal Thermal Control  
function. Configuration options: [Auto] [Disabled]  
Scroll down the screen to display the following items.  
Hyper-Threading Technology [Enabled]  
Allows you to enable or disable the processor Hyper-Threading Technology.  
Refer to the Appendix for more information on the Hyper-Threading  
Technology. Configuration options: [Disabled] [Enabled]  
The following item appears only when you installed an Intel® Pentium®  
CPU that supports the Enhanced Intel SpeedStep® Technology (EIST).  
4
Intel(R) SpeedStep Technology [Automatic]  
Allows you to use the Enhanced Intel SpeedStep® Technology. When set  
to [Automatic], you can adjust the system power settings in the operating  
system to use the EIST feature.  
Set this item to [Disabled] if you do not want to use the EIST.  
Configuration options: [Automatic] [Disabled]  
Refer to the Appendix for details on how to use the EIST feature.  
The motherboard comes with a BIOS file that supports EIST.  
When AI Quiet is enabled, this item is automatically set to  
[Automatic] and becomes non‑configurable. See page 4‑33.  
4-24  
Chapter 4: BIOS setup  
4.4.4 Chipset  
The Chipset menu allows you to change the advanced chipset settings.  
Select an item then press <Enter> to display the sub-menu.  
Advanced Chipset Settings  
Enable or disable  
DRAM timing.  
Configure DRAM Timing by SPD  
Hyper Path 3  
[Enabled]  
[Auto]  
DRAM Throttling Threshold  
Boot Graphic Adapter Priori  
[Auto]  
[PCI Express/PCI]  
PEG Buffer Length  
Link Latency  
[Auto]  
[Auto]  
PEG Root Control  
PEG Link Mode  
[Auto]  
[Auto]  
Slot Power  
High Priority Port Select  
[Auto]  
[Disabled]  
Select Screen  
Select Item  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
Advanced Chipset Settings  
Configure DRAM Timing by SPD [Enabled]  
When this item is enabled, the DRAM timing parameters are set according  
to the DRAM SPD (Serial Presence Detect). When disabled, you can  
manually set the DRAM timing parameters through the DRAM sub-items.  
The following sub-items appear when this item is disabled.  
Configuration options: [Disabled] [Enabled]  
DRAM CAS# Latency [5 Clocks]  
Controls the latency between the SDRAM read command and the time  
the data actually becomes available.  
Configuration options: [6 Clock] [5 Clocks] [4 Clocks] [3 Clocks]  
DRAM RAS# Precharge [4 Clocks]  
Controls the idle clocks after issuing a precharge command to the DDR  
SDRAM. Configuration options: [2 Clocks] [3 Clocks] [4 Clocks]  
[5 Clocks] [6 Clocks]  
DRAM RAS# to CAS# Delay [4 Clocks]  
Controls the latency between the DDR SDRAM active command and  
the read/write command. Configuration options: [2 Clocks] [3 Clocks]  
[4 Clocks] [5 Clocks] [6 Clocks]  
DRAM RAS# Activate to Precharge Delay [15 Clocks]  
Configuration options: [4 Clocks] [5 Clocks] ~ [18 Clocks]  
DRAM Write Recovery Time [4 Clocks]  
Configuration options: [2 Clocks] [3 Clocks] [4 Clocks] [5 Clocks]  
[6 Clocks]  
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4-25  
Hyper Path 3 [Auto]  
Allows you to enable or disable the ASUS Hyper Path 3 feature.  
Configuration options: [Disabled] [Enabled] [Auto]  
DRAM Throttling Threshold [Auto]  
Allows you to set DRAM throttling threshold to auto or disabled.  
Configuration options: [Disabled] [Auto]  
Boot Graphic Adapter Priority [PCI Express/PCI]  
Allows selection of the graphics controller to use as primary boot device.  
Configuration options: [PCI Express/PCI] [PCI/PCI Express]  
PEG Buffer Length [Auto]  
Sets the length of the PCI Express graphics card buffer.  
Configuration options: [Auto] [Long] [Short]  
Link Latency [Auto]  
Sets the PCI Express graphics card link latency.  
Configuration options: [Auto] [Slow] [Normal]  
PEG Root Control [Auto]  
Allows you to enable, disable, or set to automatic the PCI Express graphics  
card root control. Configuration options: [Auto] [Disabled] [Enabled]  
PEG Link Mode [Auto]  
Sets the PCI Express graphics link mode. Setting this item to [Auto]  
allows the motherboard to automatically adjust the PCI Express graphics  
link mode to the correct frequency based on the system configuration.  
Four additional settings are available for overclocking the PEG Link Mode.  
Configuration options: [Auto] [Slow] [Normal] [Fast] [Faster]  
Slot Power [Auto]  
Sets the PCI Express graphics card slot power.  
Configuration options: [Auto] [Light] [Normal] [Heavy] [Heavier]  
High Priority Port Select [Disabled]  
Allows you to disable or select the high priority port. The specified high  
priority port will be given arbitration above VC0 but below VC1.  
Configuration options: [Disabled] [PCI Express Port 4]  
4-26  
Chapter 4: BIOS setup  
4.4.5 Onboard Devices Configuration  
Configure Win627EHF Super IO Chipset  
Enable or disable  
High Definition Audio  
Controller.  
HD Audio Controller  
Onboard PCIEX GbE LAN  
LAN Option ROM  
[Enabled]  
[Enabled]  
[Disabled]  
Serial Port1 Address  
Parallel Port Address  
Parallel Port Mode  
ECP Mode DMA Channel  
Parallel Port IRQ  
[3F8/IRQ4]  
[378]  
[ECP]  
[DMA3]  
[IRQ7]  
Onboard Game/MIDI Port  
[Disabled]  
HD Audio Controller [Enabled]  
Allows you to enable or disable the high‑definition audio CODEC.  
Configuration options: [Enabled] [Disabled]  
OnBoard PCIEX GbE LAN [Enabled]  
Allows you to enable or disable the onboard PCI Express Gigabit LAN  
controller. Configuration options: [Disabled] [Enabled]  
The Gigabit LAN controller does not support S5 Wake-On-LAN function  
under DOS mode or Windows® ME.  
LAN Option ROM [Disabled]  
This item allows you to enable or disable the option ROM in the  
onboard LAN controller. This item appears only when the Onboard  
PCIEX GbE LAN item is set to Enabled.  
Configuration options: [Disabled] [Enabled]  
Serial Port1 Address [3F8/IRQ4]  
Allows you to select the Serial Port1 base address.  
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4]  
[2E8/IRQ3]  
Parallel Port Address [378]  
Allows you to select the Parallel Port base addresses.  
Configuration options: [Disabled] [378] [278] [3BC]  
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4-27  
Parallel Port Mode [ECP]  
Allows you to select the Parallel Port mode.  
Configuration options: [Normal] [Bi‑directional] [EPP] [ECP]  
ECP Mode DMA Channel [DMA3]  
Appears only when the Parallel Port Mode is set to [ECP].  
This item allows you to set the Parallel Port ECP DMA.  
Configuration options: [DMA0] [DMA1] [DMA3]  
Parallel Port IRQ [IRQ7]  
Configuration options: [IRQ5] [IRQ7]  
Onboard Game/MIDI Port [Disabled]  
Allows you to select the Game Port address or to disable the port.  
Configuration options: [Disabled] [200/300] [200/330] [208/300]  
[208/330]  
4.4.6 PCI PnP  
The PCI PnP menu items allow you to change the advanced settings for  
PCI/PnP devices. The menu includes setting IRQ and DMA channel resources  
for either PCI/PnP or legacy ISA devices, and setting the memory size block  
for legacy ISA devices.  
Take caution when changing the settings of the PCI PnP menu items.  
Incorrect field values can cause the system to malfunction.  
Advanced PCI/PnP Settings  
NO: Lets the BIOS  
configue all the  
WARNING: Setting wrong values in below sections  
may cause system to malfunction.  
devices in the system.  
YES: Lets the  
Plug And Play O/S  
PCI Latency Timer  
Allocate IRQ to PCI VGA  
Palette Snooping  
[No]  
operating system  
configure Plug and Play  
(PnP) devices not  
required for boot if  
your system has a Plug  
and Play operating  
system.  
[64]  
[Yes]  
[Disabled]  
IRQ-3 assigned to  
IRQ-4 assigned to  
IRQ-5 assigned to  
IRQ-7 assigned to  
IRQ-9 assigned to  
IRQ-10 assigned to  
IRQ-11 assigned to  
IRQ-14 assigned to  
IRQ-15 assigned to  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
[PCI Device]  
Select Screen  
Select Item  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
Plug And Play O/S [No]  
When set to [No], BIOS configures all the devices in the system. When set  
to [Yes] and if you install a Plug and Play operating system, the operating  
system configures the Plug and Play devices not required for boot.  
Configuration options: [No] [Yes]  
4-28  
Chapter 4: BIOS setup  
PCI Latency Timer [64]  
Allows you to select the value in units of PCI clocks for the PCI device  
latency timer register. Configuration options: [32] [64] [96] [128] [160]  
[192] [224] [248]  
Allocate IRQ to PCI VGA [Yes]  
When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card  
requests for an IRQ. When set to [No], BIOS does not assign an IRQ to the  
PCI VGA card even if requested. Configuration options: [No] [Yes]  
Palette Snooping [Disabled]  
When set to [Enabled], the pallete snooping feature informs the PCI  
devices that an ISA graphics device is installed in the system so that the  
latter can function correctly. Configuration options: [Disabled] [Enabled]  
IRQ-xx assigned to [PCI Device]  
When set to [PCI Device], the specific IRQ is free for use of PCI/PnP  
devices. When set to [Reserved], the IRQ is reserved for legacy ISA  
devices. Configuration options: [PCI Device] [Reserved]  
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4-29  
4.5  
Power menu  
The Power menu items allow you to change the settings for the ACPI and  
Advanced Power Management (APM) features. Select an item then press  
<Enter> to display the configuration options.  
Suspend Mode  
[Auto]  
[No]  
Select the ACPI state  
used for System  
Suspend.  
Repost Video on S3 Resume  
ACPI 2.0 Support  
ACPI APIC Support  
[No]  
[Enabled]  
APM Configuration  
Hardware Monitor  
4.5.1 Suspend Mode [Auto]  
Allows you to select the Advanced Configuration and Power Interface  
(ACPI) state to be used for system suspend.  
Configuration options: [S1 (POS) Only] [S3 Only] [Auto]  
4.5.2 Repost Video on S3 Resume [No]  
Determines whether to invoke VGA BIOS POST on S3/STR resume.  
Configuration options: [Yes] [No]  
4.5.3 ACPI 2.0 Support [No]  
Allows you to add more tables for Advanced Configuration and Power  
Interface (ACPI) 2.0 specifications. Configuration options: [No] [Yes]  
4.5.4 ACPI APIC Support [Enabled]  
Allows you to enable or disable the Advanced Programmable Interrupt  
Controller (APIC) mode under Advanced Configuration and Power Interface  
(ACPI). When enabled, the ACPI APIC table pointer is included in the RSDT  
pointer list. Configuration options: [Disabled] [Enabled]  
4-30  
Chapter 4: BIOS setup  
4.5.5 APM Configuration  
APM Configuration  
Go into On/Off or  
Suspend when Power  
button is pressed.  
Power Button Mode  
[On/Off]  
Restore on AC Power Loss  
Power On By RTC Alarm  
[Power Off]  
[Disabled]  
Power On By External Modems [Disabled]  
Power On By PCI Devices  
Power On By PCIE Devices  
Power On By PS/2 Keyboard  
Power On By PS/2 Mouse  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
Power Button Mode [On/Off]  
Allows the system to go into On/Off mode or suspend mode when the  
power button is pressed. Configuration options: [On/Off] [Suspend]  
Restore on AC Power Loss [Power Off]  
When set to Power Off, the system goes into off state after an AC power  
loss. When set to Power On, the system goes on after an AC power loss.  
When set to Last State, the system goes into either off or on state,  
whatever the system state was before the AC power loss.  
Configuration options: [Power Off] [Power On] [Last State]  
Power On By RTC Alarm [Disabled]  
Allows you to enable or disable RTC to generate a wake event.  
Configuration options: [Disabled] [Enabled]  
The succeeding items appear when the Power On By RTC Alarm item is  
set to Enabled.  
RTC Alarm Date [15]  
To set the alarm date, highlight this item and press the <+> or <->  
key to make the selection. Configuration options: [Everyday] [1] [2]  
[3]...[31]  
RTC Alarm Hour [12]  
To set the alarm hour, highlight this item and press the <+> or <->  
key to make the selection. Configuration options: [00] [1]...[23]  
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4-31  
RTC Alarm Minute [30]  
To set the alarm minute, highlight this item and press the <+> or  
<‑> key to make the selection. Configuration options: [00] [1]...[59]  
RTC Alarm Second [30]  
To set the alarm second, highlight this item and press the <+> or  
<‑> key to make the selection. Configuration options: [00] [1]...[59]  
Power On By External Modems [Disabled]  
Allows either setting of [Enabled] or [Disabled] for powering up the  
computer when the external modem receives a call while the computer is in  
Soft‑off mode. Configuration options: [Disabled] [Enabled]  
The computer cannot receive or transmit data until the computer and  
applications are fully running. Thus, connection cannot be made on the  
first try. Turning an external modem off and then back on while the  
computer is off causes an initialization string that turns the system  
power on.  
Power On By PCI Devices [Disabled]  
When set to [Enabled], this parameter allows you to turn on the system  
through a PCI LAN or modem card. This feature requires an ATX power  
supply that provides at least 1A on the +5VSB lead.  
Configuration options: [Disabled] [Enabled]  
Power On By PCIE Devices [Disabled]  
When set to [Enabled], this parameter allows you to turn on the system  
through a PCI Express card. This feature requires an ATX power supply that  
provides at least 1A on the +5VSB lead.  
Configuration options: [Disabled] [Enabled]  
Power On By PS/2 Keyboard [Disabled]  
Allows you to use specific keys on the keyboard to turn on the system.  
This feature requires an ATX power supply that provides at least 1A on  
the +5VSB lead. Configuration options: [Disabled] [Space Bar] [Ctrl‑Esc]  
[Power Key]  
Power On By PS/2 Mouse [Disabled]  
When set to [Enabled], this parameter allows you to use the PS/2 mouse  
to turn on the system. This feature requires an ATX power supply that  
provides at least 1A on the +5VSB lead. Configuration options: [Disabled]  
[Enabled]  
4-32  
Chapter 4: BIOS setup  
4.5.6 Hardware Monitor  
Hardware Monitor  
AI Quiet  
CPU Temperature  
MB Temperature  
[Disabled]  
[32.5ºC/90.5ºF]  
[36.0ºC/96.5ºF]  
CPU Fan Speed (RPM)  
CPU Q-Fan Control  
[3813RPM]  
[Disabled]  
Chassis Fan1 Speed (RPM) [N/A]  
Chassis Q-Fan1 Control  
Power Fan Speed (RPM)  
[Disabled]  
[N/A]  
VCORE Voltage  
3.3V Voltage  
5V Voltage  
[ 1.320V]  
[ 3.345V]  
[ 5.094V]  
[11.880V]  
12V Voltage  
AI Quiet [Disabled]  
Allows you to enable or disable the AI Quiet feature.  
Configuration options [Enabled] [Disabled].  
1. When AI Quiet is enabled:  
The Enhanced C1 Control item is automatically set to [Auto] and  
becomes non‑configurable. See page 4‑24.  
The Intel(R) SpeedStep Technology item is automatically set to  
[Automatic] and becomes non‑configurable. See page 4‑24.  
The CPU Q-Fan Control, CPU Fan Profile Mode and Chassis Q-Fan1  
Control options do not appear. Refer to the items’ description  
below.  
2. When AI Quiet is disabled:  
The CPU Q-Fan Control and Chassis Q-Fan1 Control items appear  
with the default setting [Disabled].  
And when the CPU Q-Fan Control item is enabled, the CPU Fan  
Profile Mode item appears with the default setting [Optimal].  
CPU Temperature [xx.xºC/xx.xºF]  
MB Temperature [xx.xºC/xx.xºF]  
The onboard hardware monitor automatically detects and displays the  
motherboard and CPU temperatures. Select [Ignored] if you do not want to  
display the detected temperatures.  
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4-33  
CPU Fan Speed (RPM) [xxxxRPM] or [N/A]  
The onboard hardware monitor automatically detects and displays the CPU  
fan speed in rotations per minute (RPM). If the fan is not connected to the  
motherboard, the field shows N/A.  
CPU Q-Fan Control [Disabled]  
Allows you to enable or disable the ASUS Q-Fan feature that smartly  
adjusts the fan speeds for more efficient system operation. Configuration  
options: [Disabled] [Enabled]  
The CPU Fan Profile Mode item appears when you enable the CPU Q-Fan  
Control feature.  
CPU Fan Profile Mode [Optimal]  
Allows you to set the appropriate CPU fan performance level.  
When set to [Optimal], the CPU fan speed automatically adjusts  
depending on the CPU temperature. Set this item to [Silent Mode]  
for silent CPU fan operation or [Performance Mode] to achieve the  
maximum CPU fan speed.  
Configuration options: [Optimal] [Silent Mode] [Performance Mode]  
Chassis Fan1 Speed (RPM) [xxxxRPM] or [N/A]  
The onboard hardware monitor automatically detects and displays the  
chassis fan speed in rotations per minute (RPM). If the fan is not connected  
to the chassis, the specific field shows N/A.  
Chassis Q-Fan1 control [Disabled]  
Allows you to enable or disable the ASUS Q-Fan feature that smartly  
adjusts the chassis fan speeds for more efficient system operation.  
Configuration options: [Disabled] [Enabled]  
Power Fan Speed (RPM) [xxxxRPM] or [N/A]  
The onboard hardware monitor automatically detects and displays the  
power fan speed in rotations per minute (RPM). If the fan is not connected  
to the power fan connector, the specific field shows N/A.  
VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage  
The onboard hardware monitor automatically detects the voltage output  
through the onboard voltage regulators.  
4-34  
Chapter 4: BIOS setup  
4.6  
Boot menu  
The Boot menu items allow you to change the system boot options. Select  
an item then press <Enter> to display the sub-menus.  
APM Configuration  
Boot Device Priority  
Boot Settings Configuration  
Security  
Select Screen  
Select Item  
Enter Go to Sub-screen  
F1  
F10  
ESC  
General Help  
Save and Exit  
Exit  
4.6.1 Boot Device Priority  
Boot Device Priority  
1st Boot Device  
2nd Boot Device  
3rd Boot Device  
[1st FLOPPY DRIVE]  
[PM-ST330620A]  
[PS-ASUS CD-S360]  
Select Screen  
Select Item  
Enter Go to Sub-screen  
F1  
F10  
ESC  
General Help  
Save and Exit  
Exit  
1st ~ xxth Boot Device [1st Floppy Drive]  
These items specify the boot device priority sequence from the available  
devices. The number of device items that appears on the screen depends  
on the number of devices installed in the system.  
Configuration options: [xxxxx Drive] [Disabled]  
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4-35  
4.6.2 Boot Settings Configuration  
Boot Settings Configuration  
Allows BIOS to skip  
certain tests while  
booting. This will  
decrease the time  
needed to boot the  
system.  
Quick Boot  
Full Screen Logo  
AddOn ROM Display Mode  
Bootup Num-Lock  
PS/2 Mouse Support  
Wait For ‘F1’ If Error  
Hit ‘DEL’ Message Display  
Interrupt 19 Capture  
[Enabled]  
[Enabled]  
[Force BIOS]  
[On]  
[Auto]  
[Enabled]  
[Enabled]  
[Disabled]  
Quick Boot [Enabled]  
Enabling this item allows the BIOS to skip some items of Power-On Self-Test  
(POST) while booting to decrease the time needed to boot the system. When  
set to [Disabled], BIOS performs all the POST items.  
Configuration options: [Disabled] [Enabled]  
Full Screen Logo [Enabled]  
Allows you to enable or disable the full screen logo display feature.  
Configuration options: [Disabled] [Enabled]  
Set this item to [Enabled] to use the ASUS MyLogo2™ feature.  
Add On ROM Display Mode [Force BIOS]  
Sets the display mode for option ROM.  
Configuration options: [Force BIOS] [Keep Current]  
Bootup Num-Lock [On]  
Allows you to select the power-on state for the NumLock.  
Configuration options: [Off] [On]  
PS/2 Mouse Support [Auto]  
Allows you to enable or disable support for PS/2 mouse.  
Configuration options: [Disabled] [Enabled] [Auto]  
Wait for ‘F1’ If Error [Enabled]  
When set to Enabled, the system waits for the F1 key to be pressed when  
error occurs. Configuration options: [Disabled] [Enabled]  
Hit ‘DEL’ Message Display [Enabled]  
When set to Enabled, the system displays the message “Press DEL to run  
Setup” during POST. Configuration options: [Disabled] [Enabled]  
4-36  
Chapter 4: BIOS setup  
Interrupt 19 Capture [Disabled]  
When set to [Enabled], this function allows the option ROMs to trap  
Interrupt 19. Configuration options: [Disabled] [Enabled]  
4.6.3 Security  
The Security menu items allow you to change the system security settings.  
Select an item then press <Enter> to display the configuration options.  
<Enter> to change  
Security Settings  
password.  
Supervisor Password  
User Password  
: Not Installed  
: Not Installed  
<Enter> again to  
disabled password.  
Change Supervisor Password  
Select Screen  
Select Item  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
Change Supervisor Password  
Select this item to set or change the supervisor password. The Supervisor  
Password item on top of the screen shows the default Not Installed. After  
you set a password, this item shows Installed.  
To set a Supervisor Password:  
1. Select the Change Supervisor Password item, then press <Enter>.  
2. From the password box, type a password composed of at least six  
letters and/or numbers, then press <Enter>.  
3. Confirm the password when prompted.  
The message “Password Installed” appears after you successfully set your  
password.  
To change the supervisor password, follow the same steps as in setting a  
user password.  
To clear the supervisor password, select the Change Supervisor Password then  
press <Enter>. The message “Password Uninstalled” appears.  
If you forget your BIOS password, you can clear it by erasing the CMOS  
Real Time Clock (RTC) RAM. See section “2.6 Jumpers” for information  
on how to erase the RTC RAM.  
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4-37  
After you have set a supervisor password, the other items appear to allow  
you to change other security settings.  
Security Settings  
Supervisor Password  
User Password  
: Installed  
: Installed  
Change Supervisor Password  
User Access Level  
Change User Password  
Clear User Password  
Password Check  
[Full Access]  
[Setup]  
Select Screen  
Select Item  
+-  
F1  
Change Option  
General Help  
F10 Save and Exit  
ESC Exit  
User Access Level [Full Access]  
This item allows you to select the access restriction to the Setup items.  
Configuration options: [No Access] [View Only] [Limited] [Full Access]  
No Access prevents user access to the Setup utility.  
View Only allows access but does not allow change to any field.  
Limited allows changes only to selected fields, such as Date and Time.  
Full Access allows viewing and changing all the fields in the Setup  
utility.  
Change User Password  
Select this item to set or change the user password. The User Password  
item on top of the screen shows the default Not Installed. After you set a  
password, this item shows Installed.  
To set a User Password:  
1. Select the Change User Password item and press <Enter>.  
2. On the password box that appears, type a password composed of at  
least six letters and/or numbers, then press <Enter>.  
3. Confirm the password when prompted.  
The message “Password Installed” appears after you set your password  
successfully.  
To change the user password, follow the same steps as in setting a user  
password.  
4-38  
Chapter 4: BIOS setup  
Clear User Password  
Select this item to clear the user password.  
Password Check [Setup]  
When set to [Setup], BIOS checks for user password when accessing the  
Setup utility. When set to [Always], BIOS checks for user password both  
when accessing Setup and booting the system.  
Configuration options: [Setup] [Always]  
4.7  
Exit menu  
The Exit menu items allow you to load the optimal or failsafe default values  
for the BIOS items, and save or discard your changes to the BIOS items.  
Exit Options  
Exit system setup  
after saving the  
changes.  
Exit & Save Changes  
Exit & Discard Changes  
Discard Changes  
F10 key can be used  
for this operation.  
Load Setup Defaults  
Select Screen  
Select Item  
Enter Go to Sub-screen  
F1  
F10  
ESC  
General Help  
Save and Exit  
Exit  
Pressing <Esc> does not immediately exit this menu. Select one of the  
options from this menu or <F10> from the legend bar to exit.  
Exit & Save Changes  
Once you have finished making your selections, choose this option from  
the Exit menu to ensure the values you selected are saved to the CMOS  
RAM. An onboard backup battery sustains the CMOS RAM so it stays on  
even when the computer is turned off. When you select this option, a  
confirmation window appears. Select OK to save the changes and exit.  
If you attempt to exit the Setup program without saving your changes,  
the program prompts you with a message asking if you want to save  
your changes before exiting. Press <Enter> to save the changes while  
exiting.  
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4-39  
Exit & Discard Changes  
Select this option only if you do not want to save the changes that you  
made to the Setup program. If you made changes to fields other than  
System Date, System Time, and Password, the BIOS asks for a confirmation  
before exiting.  
Discard Changes  
Allows you to discard the selections you made and restore the previously  
saved values. After selecting this option, a confirmation appears. Select OK  
to discard any changes and load the previously saved values.  
Load Setup Defaults  
Allows you to load the default values for each of the parameters on  
the Setup menus. When you select this option or if you press <F5>, a  
confirmation window appears. Select OK to load the default values. Select  
Exit & Save Changes or make other changes before saving the values to  
the non-volatile RAM.  
4-40  
Chapter 4: BIOS setup  
This chapter describes the contents  
of the support CD that comes with  
the motherboard package.  
Software  
5
support  
Chapter summary  
5
5.1  
5.2  
5.3  
Installing an operating system.............................................. 5-1  
Support CD information........................................................ 5-1  
Software information............................................................ 5-8  
ASUS P5LD2 SE  
5.1  
Installing an operating system  
This motherboard supports Windows® 2000/2003 Server/XP operating  
systems (OS). Always install the latest OS version and corresponding  
updates to maximize the features of your hardware.  
Motherboard settings and hardware options vary. Use the setup  
procedures presented in this chapter for reference only. Refer to  
your OS documentation for detailed information.  
Make sure that you install Windows® 2000 Service Pack 4 or the  
Windows® XP Service Pack 1 or later versions before installing the  
drivers for better compatibility and system stability.  
5.2  
Support CD information  
The support CD that came with the motherboard package contains the  
drivers, software applications, and utilities that you can install to avail all  
motherboard features.  
The contents of the support CD are subject to change at any time  
without notice. Visit the ASUS website(www.asus.com) for updates.  
5.2.1 Running the support CD  
Place the support CD to the optical drive. The CD automatically displays the  
Drivers menu if Autorun is enabled in your computer.  
Click an icon to  
display support  
CD/motherboard  
information  
Click an item to install  
If Autorun is NOT enabled in your computer, browse the contents of the  
support CD to locate the file ASSETUP.EXE from the BIN folder. Double‑  
click the ASSETUP.EXE to run the CD.  
ASUS P5LD2 SE  
5-1  
5.2.2 Drivers menu  
The Drivers menu shows the available device drivers if the system detects  
installed devices. Install the necessary drivers to activate the devices.  
Intel Chipset Drivers  
Installs the Intel® Chipset drivers for the Intel® 945P chipset.  
ADI Audio Driver  
Installs the ADI 1986A audio driver and application. See page 5-10 for  
details.  
Realtek Lan Driver  
Installs the Realtek RTL8111B Gigabit LAN driver that provides up to 1000  
Mbps data transfer rates.  
5-2  
Chapter 5: Software support  
5.2.3 Utilities menu  
The Utilities menu shows the applications and other software that the  
motherboard supports.  
ASUS PC Probe II  
This smart utility monitors the fan speed, CPU temperature, and system  
voltages, and alerts you of any detected problems. This utility helps you  
keep your computer in healthy operating condition.  
ASUS Update  
Allows you to download the latest version of the BIOS from the ASUS  
website.  
Before using the ASUS Update, make sure that you have an Internet  
connection so you can connect to the ASUS website.  
ASUS Screen Saver  
Bring life to your computer screen by installing the ASUS screen saver.  
ADOBE Acrobat Reader V7.0  
Installs the Adobe® Acrobat® Reader V7.0 that allows you to open, view,  
and print documents in Portable Document Format (PDF).  
ASUS P5LD2 SE  
5-3  
Microsoft DirectX 9.0c  
Installs the Microsoft® DirectX 9.0c driver. The Microsoft DirectX® 9.0c  
is a multimedia technology that enhances computer graphics and sound.  
DirectX® improves the multimedia features of you computer so you can  
enjoy watching TV and movies, capturing videos, or playing games in your  
computer. Visit the Microsoft website (www.microsoft.com) for updates.  
ASUS AI Booster  
The ASUS AI Booster application allows you to overclock the CPU speed in a  
Windows® environment.  
Anti-virus Utility  
The anti‑virus application scans, identifies, and removes computer viruses.  
View the online help for detailed information.  
5.2.4 Manuals menu  
The Manuals menu contains a list of supplementary user manuals. Click an  
item to open the folder of the user manual.  
Most user manual files are in Portable Document Format (PDF). Install  
the Adobe® Acrobat® Reader from the Utilities menu before opening a  
user manual file.  
Intel LGA775 CPU Install User’s Manual  
Allows you to open the Intel® LGA775 CPU installation guide.  
5-4  
Chapter 5: Software support  
5.2.5 ASUS Contact information  
Click the Contact tab to display the ASUS contact information. You can also  
find this information on the inside front cover of this user guide.  
5.2.6 Other information  
The icons on the top right corner of the screen give additional information  
on the motherboard and the contents of the support CD. Click an icon to  
display the specified information.  
Motherboard Info  
Displays the general specifications of the motherboard.  
ASUS P5LD2 SE  
5-5  
Browse this CD  
Displays the support CD contents in graphical format.  
Technical support Form  
Displays the ASUS Technical Support Request Form that you have to fill out  
when requesting technical support.  
5-6  
Chapter 5: Software support  
Filelist  
Displays the contents of the support CD and a brief description of each in  
text format.  
ASUS P5LD2 SE  
5-7  
5.3  
Software information  
Most of the applications in the support CD have wizards that will  
conveniently guide you through the installation. View the online help or  
readme file that came with the software application for more information.  
5.3.1 ASUS MyLogo2™  
The ASUS MyLogo2™ utility lets you customize the boot logo. The boot  
logo is the image that appears on screen during the Power-On Self-Test  
(POST). The ASUS MyLogo2™ is automatically installed when you install  
the ASUS Update utility from the support CD. See section “5.2.3 Utilities  
menu” for details.  
Before using the ASUS MyLogo2™, use the AFUDOS utility to make a  
copy of your original BIOS file, or obtain the latest BIOS version from  
the ASUS website. See section “4.1.2 AFUDOS utility”.  
Make sure that the BIOS item Full Screen Logo is set to [Enabled] if  
you wish to use ASUS MyLogo2™. See section “4.6.2 Boot Settings  
Configuration”.  
You can create your own boot logo image in GIF, JPG, or BMP file  
formats.  
To launch the ASUS MyLogo2™:  
1. Launch the ASUS Update utility. Refer to section “4.1.5 ASUS Update  
utility” for details.  
2. Select Options from the drop down menu, then click Next.  
3. Check the option Launch MyLogo to replace system boot logo before  
flashing BIOS, then click Next.  
4. Select Update BIOS from a file from the drop down menu, then click  
Next.  
5. When prompted, locate the new  
BIOS file, then click Next. The  
ASUS MyLogo window appears.  
6. From the left window pane, select  
the folder that contains the image  
you intend to use as your boot  
logo.  
5-8  
Chapter 5: Software support  
7. When the logo images appear on  
the right window pane, select an  
image to enlarge by clicking on it.  
8. Adjust the boot image to your  
desired size by selecting a value  
on the Ratio box.  
9. When the screen returns to the ASUS Update utility, flash the original  
BIOS to load the new boot logo.  
10. After flashing the BIOS, restart the computer to display the new boot  
logo during POST.  
ASUS P5LD2 SE  
5-9  
5.3.2 Audio configurations  
The ADI AD1986 Azalia audio CODEC provides 6-channel audio capability  
through the SoundMAX® Digital Audio System to deliver the ultimate  
audio experience on your PC. The software implements high quality audio  
synthesis/rendering, 3D sound positioning, and advanced voice-input  
technologies.  
Follow the installation wizard to install the SoundMAX® Audio Driver and  
Application from the support CD that came with the motherboard package  
to activate the 6-channel audio feature.  
You must use 4-channel or 6-channel speakers for this setup.  
SoundMAX® Digital Audio requires Microsoft® Windows® 98SE/  
ME/2000/ XP. Make sure that one of these operating systems is  
installed before installing SoundMAX®.  
If the SoundMAX Digital Audio System is correctly  
installed, you will find the SoundMAX Control  
Panel icon on the taskbar.  
SoundMAX Control  
Panel icon  
From the taskbar, double-click the SoundMAX  
Control Panel icon to display the following menu.  
5-10  
Chapter 5: Software support  
Audio preferences  
The Preferences page of the SoundMAX Digital Audio System allows you to  
change various audio settings.  
Listening environment options  
The section includes the Speaker Setup, Acoustic Environment models,  
Virtual Ear™ models and the Virtual Theater™ Surround feature. Follow  
screen instructions to adjust the listening environment options.  
ASUS P5LD2 SE  
5-11  
Microphone  
Follow the screen instructions to configure the microphone to your desired  
settings.  
The functions of the Line Out (lime), Line In (blue), and Mic (pink) ports  
on the rear panel change when you select the 4-channel or 6-channel  
audio configuration. See the audio configuration table on page 2‑24 for  
details.  
5-12  
Chapter 5: Software support  
The Appendix describes the CPU  
features that the motherboard  
supports.  
CPU features  
A
Chapter summary  
A
A.1  
A.2  
A.3  
Intel® EM64T......................................................................... A-1  
Enhanced Intel SpeedStep® Technology (EIST) ....................A-1  
Intel® Hyper-Threading Technology......................................A-3  
ASUS P5LD2 SE  
A.1  
Intel® EM64T  
The motherboard is fully compatible with Intel® Pentium® 4 LGA775  
processors running on 32-bit operating systems.  
The motherboard comes with a BIOS file that supports EM64T. You  
can download the latest BIOS file from the ASUS website (www.asus.  
com/support/download/) if you need to update the BIOS file. See  
Chapter 4 for details.  
Visit www.intel.com for more information on the EM64T feature.  
Visit www.microsoft.com for more information on Windows® 64-bit OS.  
Using the Intel® EM64T feature  
To use the Intel® EM64T feature:  
1. Install an Intel® Pentium® 4 CPU that supports the Intel® EM64T.  
2. Install a 64-bit operating system (Windows® XP Professional x64  
Edition or Windows® Server 2003 x64 Edition).  
3. Install the 64-bit drivers for the motherboard components and devices  
from the support CD.  
4. Install the 64-bit drivers for expansion cards or add-on devices, if any.  
Refer to the expansion card or add-on device(s) documentation, or visit  
the related website, to verify if the card/device supports a 64-bit system.  
A.2  
Enhanced Intel SpeedStep®  
Technology (EIST)  
The motherboard comes with a BIOS file that supports EIST. You  
can download the latest BIOS file from the ASUS website (www.  
asus.com/support/download/) if you need to update the BIOS. See  
Chapter 4 for details.  
Visit www.intel.com for more information on the EIST feature.  
A.2.1 System requirements  
Before using EIST, check your system if it meets the following  
requirements:  
Intel® Pentium® 4 processor with EIST support  
BIOS file with EIST support  
Operating system with EIST support (Windows® XP SP2/Windows®  
Server 2003 SP1/Linux 2.6 kernel or later versions)  
ASUS P5LD2 SE  
A-1  
A.2.2 Using the EIST  
To use the EIST feature:  
1.  
2.  
Turn on the computer, then enter the BIOS Setup.  
Go to the Advanced Menu, highlight CPU Configuration,  
then press <Enter>.  
3. Set the Intel(R) SpeedStep Technology item to [Automatic],  
then press <Enter>. See page 4-24 for details.  
4.  
Press <F10> to save your changes and exit the BIOS setup.  
5. After the computer restarts, right click on a blank space on the  
desktop, then select Properties from the pop-up menu.  
6. When the Display Properties  
window appears, click the Screen  
Saver tab.  
7. Click the Power button on the  
Monitor power section to open  
the Power Options Properties  
window.  
8.  
On the Power schemes section,  
click , then select any option  
except Home/Office Desktop or  
Always On.  
9. Click Apply, then click OK.  
10. Close the Display Properties  
window.  
After you adjust the power  
scheme, the CPU internal  
frequency slightly decreases  
when the CPU loading is low.  
The screen displays and procedures may vary depending on the  
operating system.  
A-2  
Appendix: CPU features  
A.3  
Intel® Hyper-Threading Technology  
The motherboard supports Intel® Pentium® 4 LGA775 processors  
with Hyper-Threading Technology.  
Hyper-Threading Technology is supported under Windows® XP/2003  
Server and Linux 2.4.x (kernel) and later versions only. Under Linux,  
use the Hyper-Threading compiler to compile the code. If you are  
using any other operating systems, disable the Hyper-Threading  
Techonology item in the BIOS to ensure system stability and  
performance.  
Installing Windows® XP Service Pack 1 or later version is  
recommended.  
Make sure to enable the Hyper-Threading Technology item in BIOS  
before installing a supported operating system.  
For more information on Hyper-Threading Technology, visit www.  
intel.com/info/hyperthreading.  
Using the Hyper-Threading Technology  
To use the Hyper-Threading Technology:  
1. Install an Intel® Pentium® 4 CPU that supports Hyper-Threading  
Technology.  
2. Power up the system and enter the BIOS Setup. Under the Advanced  
Menu, make sure that the item Hyper-Threading Technology is set to  
Enabled. See page 4-24 for details.  
The BIOS item appears only if you installed a CPU that supports  
Hyper-Threading Techonology.  
3. Restart the computer.  
ASUS P5LD2 SE  
A-3  
A-4  
Appendix: CPU features  

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