Asus P5B VM DO User Manual

P5B-VM DO  
Contents  
Notices......................................................................................................... vi  
Safety information ..................................................................................... vii  
P5B-VM DO specifications summary......................................................... x  
Chapter 1: Product introduction  
1.1  
1.2  
1.3  
Welcome! ...................................................................................... 1-2  
Package contents......................................................................... 1-2  
Special features............................................................................ 1-2  
1.3.1  
1.3.2  
1.3.3  
1.3.4  
Product highlights ........................................................... 1-2  
ASUS Features............................................................... 1-4  
ASUS Special Features .................................................. 1-5  
ASUS Intelligent Overclocking Features......................... 1-5  
1.4  
Before you proceed ..................................................................... 1-6  
1.5  
Motherboard overview................................................................. 1-7  
1.5.1  
1.5.2  
1.5.3  
1.5.4  
Placement direction ........................................................ 1-7  
Screw holes .................................................................... 1-7  
Motherboard layout......................................................... 1-8  
Layout contents............................................................... 1-9  
1.6  
1.7  
Central Processing Unit (CPU) ................................................. 1-11  
1.6.1  
1.6.2  
1.6.3  
Installing the CPU ......................................................... 1-12  
Installing the CPU heatsink and fan.............................. 1-14  
Uninstalling the CPU heatsink and fan ......................... 1-16  
System memory ......................................................................... 1-18  
1.7.1  
1.7.2  
1.7.3  
1.7.4  
Overview....................................................................... 1-18  
Memory configurations.................................................. 1-18  
Installing a DIMM .......................................................... 1-23  
Removing a DIMM ........................................................ 1-23  
1.8  
Expansion slots.......................................................................... 1-24  
1.8.1  
1.8.2  
1.8.3  
1.8.4  
1.8.5  
1.8.6  
Installing an expansion card ......................................... 1-24  
Configuring an expansion card ..................................... 1-24  
Interrupt assignments ................................................... 1-25  
PCI slots........................................................................ 1-27  
PCI Express x4 slot....................................................... 1-27  
PCI Express x16 slot..................................................... 1-27  
iii  
Contents  
1.9  
Jumpers ...................................................................................... 1-28  
1.10  
Connectors ................................................................................. 1-30  
1.10.1 Rear panel connectors.................................................. 1-30  
1.10.2 Internal connectors ....................................................... 1-32  
Chapter 2: BIOS setup  
2.1 Managing and updating your BIOS ............................................ 2-2  
2.1.1  
2.1.2  
2.1.3  
2.1.4  
2.1.5  
Creating a bootable floppy disk....................................... 2-2  
ASUS EZ Flash 2 utility................................................... 2-3  
AFUDOS utility................................................................ 2-4  
ASUS CrashFree BIOS 3 utility ...................................... 2-6  
ASUS Update utility ........................................................ 2-8  
2.2  
BIOS setup program .................................................................. 2-11  
2.2.1  
2.2.2  
2.2.3  
2.2.4  
2.2.5  
2.2.6  
2.2.7  
2.2.8  
2.2.9  
BIOS menu screen........................................................ 2-12  
Menu bar....................................................................... 2-12  
Navigation keys............................................................. 2-12  
Menu items ................................................................... 2-13  
Sub-menu items............................................................ 2-13  
Configuration fields ....................................................... 2-13  
Pop-up window ............................................................. 2-13  
Scroll bar....................................................................... 2-13  
General help ................................................................. 2-13  
2.3  
Main menu .................................................................................. 2-14  
2.3.1  
2.3.2  
2.3.3  
2.3.4  
2.3.5  
2.3.6  
System Time ................................................................. 2-14  
System Date ................................................................. 2-14  
Legacy Diskette A ........................................................ 2-14  
SATA1-6......................................................................... 2-15  
IDE Configuration.......................................................... 2-16  
System Information....................................................... 2-17  
2.4  
Advanced menu ......................................................................... 2-18  
2.4.1  
2.4.2  
2.4.3  
2.4.4  
2.4.5  
Jumperfree Configuration ............................................. 2-18  
USB Configuration ........................................................ 2-20  
TPM Configuration........................................................ 2-21  
CPU Configuration........................................................ 2-22  
Chipset.......................................................................... 2-24  
iv  
Contents  
2.4.6  
Onboard Devices Configuration.................................... 2-27  
2.4.7  
PCI PnP ........................................................................ 2-29  
2.5  
Power menu................................................................................ 2-30  
2.5.1  
2.5.2  
2.5.3  
2.5.4  
2.5.5  
2.5.6  
Suspend Mode [Auto] ................................................... 2-30  
Repost Video on S3 Resume [No]................................ 2-30  
ACPI 2.0 Support [ACPI v1.0]....................................... 2-30  
ACPI APIC Support [Enabled]....................................... 2-30  
APM Configuration........................................................ 2-31  
Hardware Monitor ......................................................... 2-32  
2.6  
Boot menu .................................................................................. 2-33  
2.6.1  
2.6.2  
2.6.3  
Boot Device Priority ...................................................... 2-33  
Boot Settings Configuration .......................................... 2-34  
Security......................................................................... 2-35  
2.7  
2.8  
Tools menu ................................................................................. 2-37  
2.7.1 ASUS EZ Flash 2.......................................................... 2-37  
Exit menu.................................................................................... 2-38  
Chapter 3: Software support  
3.1  
Installing an operating system ................................................... 3-2  
3.2  
Support CD information .............................................................. 3-2  
3.2.1  
3.2.2  
3.2.3  
3.2.4  
3.2.5  
3.2.6  
3.2.7  
Running the support CD ................................................. 3-2  
Drivers menu................................................................... 3-3  
Utilities menu .................................................................. 3-4  
Make disk menu.............................................................. 3-5  
Manuals menu ................................................................ 3-6  
ASUS Contact information.............................................. 3-6  
Other information ............................................................ 3-7  
v
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.  
vi  
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.  
vii  
About this guide  
This user guide contains the information you need when installing and configuring  
the motherboard.  
How this guide is organized  
This manual contains the following parts:  
Chapter 1: Product introduction  
This chapter describes the features of the motherboard and the new  
technology it supports. It also 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.  
Chapter 2: 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 3: Software support  
This chapter describes the contents of the support CD that comes with the  
motherboard package.  
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.  
viii  
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+D>  
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 /iP5BVMDA.ROM  
ix  
P5B-VM DO specifications summary  
CPU  
LGA775 socket for Intel® Quad-core / Core2 Extreme/  
Core2 Duo / Pentium® D / Pentium® 4 / Celeron®  
processor  
D
Compatible with Intel® 05B/05A/06 processors  
Intel® Hyper-Threading Technology ready  
* Refer to www.asus.com for Intel CPU support list  
Chipset  
Intel® Q965 / ICH8DO with Intel® Active Management  
Technology  
System Bus  
1066 / 800 / 533 MHz  
Memory  
4 x DIMM, max. 8GB, DDR2 800 / 667 / 533 MHz, non-ECC,  
un-buffered memory  
Dual channel memory architecture  
* Refer to www.asus.com or user manual for Memory  
QVL (Qualified Vendors Lists )  
Expansion Slots  
VGA  
1 x PCI-E x16 slot  
1 x PCI-E x4 slot  
2 x PCI slots  
Intel® Graphics Media Accelerator 3000 (Intel® GMA 3000)  
integrated  
High Definition Video Processing with max. resolutions to  
Max resolution to 2048 x 1536 bpp (@75Hz)  
Max. shared memory of 256MB  
Support Microsoft® DX 9, OpenGL 1.4, Pixel Shader 2.0  
Storage  
Southbridge  
-
-
6 x SATA 3.0 Gb/s ports  
Intel® Matrix Storage Technology supports RAID 0,  
1, 5, and 10  
JMicron® JMB363 PATA and SATA controller  
-
1 x UltraDMA 133/100/66/33 for up to 2 PATA  
devices  
-
-
-
1 x Internal SATA 3.0 Gb/s port  
1 x External SATA 3.0 Gb/s port (SATA On-the-Go)  
Support SATA RAID 0, 1 and JBOD (by 1 x External  
SATA & 1 x Internal SATA)  
LAN  
Intel® 82566DM PCI-E Gigabit Ethernet Controller  
Audio  
ADI® AD 1988 8-channel High Definition Audio CODEC  
-
Support Jack-Sensing, Enumeration, Multi-  
streaming and Jack-Retasking  
S/PDIF_OUT interface  
-
-
ASUS Noise Filter  
IEEE 1394  
TI® 1394a controller supports 2 x IEEE 1394a ports (one  
at midboard; one at back panel)  
(continued on the next page)  
x
P5B-VM DO specifications summary  
USB  
10 x USB 2.0 ports (6 ports at mid-board, 4 ports at back  
panel)  
ASUS Features  
ASUS Quiet Thermal Solution:  
-
ASUS Advanced Q-Fan  
ASUS Crystal Sound  
Noise Filter  
ASUS EZ DIY:  
-
-
-
-
ASUS Q-Connector  
ASUS CrashFree BIOS 3  
ASUS EZ Flash 2  
Other Features  
ASUS MyLogo 2  
ASUS C.P.R. (CPU Parameter Recall)  
Back Panel I/O Ports  
1 x PS/2 keyboard port  
1 x PS/2 mouse port  
1 x Parallel port  
1 x External Serial ATA port  
1 x VGA port  
1 x IEEE 1394a connector  
1 x RJ45 port  
4 x USB 2.0/1.1 ports  
8-channel Audio I/O ports  
Internal Connectors  
3 x USB 2.0 connectors support additional 6 USB ports  
1 x Floppy disk drive connector  
1 x IDE connector for two devices  
1 x COM connector  
1 x TPM connector  
7 x Serial ATA connectors  
1 x CPU Fan connector  
2 x Chassis Fan connectors  
1 x Power Fan connector  
1 x IEEE1394a connector  
Front panel audio connector  
1 x Azalia Digital Header  
1 x S/PDIF Out Header  
Chassis intrusion connector  
CD audio in  
24-pin ATX Power connector  
1 x 4-pin ATX 12 V Power connector  
System panel connector  
(continued on the next page)  
xi  
P5B-VM DO specifications summary  
BIOS Features  
16 Mb Flash ROM, AMI BIOS, PnP, DMI 2.0, WfM2.0,  
SM BIOS 2.3, ACPI 2.0a, ASUS EZ Flash 2, ASUS  
CrashFree BIOS 3  
Manageability  
WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE, RPL  
Support CD Contents  
Drivers  
ASUS PC Probe II  
ASUS Update  
Anti-virus software (OEM version)  
Form Factor  
uATX form factor: 9.6” x 9.6” (24.4 cm x 24.4 cm)  
*Specifications are subject to change without notice.  
xii  
This chapter describes the motherboard  
features and the new technologies  
it supports.  
Product  
1
introduction  
1.1  
Welcome!  
Thank you for buying an ASUS® P5B-VM DO 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  
Cables  
ASUS P5B-VM DO  
Serial ATA power and signal cable for 2 devices  
1 x Ultra DMA 133/100/66 cable  
1 x Floppy disk drive cable  
I/O shield  
Accessories  
1 x ASUS Q-Connector Kit (USB, 1394, system  
panel; Retail version only)  
ASUS motherboard support CD  
User guide  
Application CD  
Documentation  
If any of the above items is damaged or missing, contact your retailer.  
1.3  
Special features  
1.3.1  
Product highlights  
Green ASUS  
This motherboard and its packaging comply with the European Union’s Restriction  
on the use of Hazardous Substances (RoHS). This is in line with the ASUS vision  
of creating environment-friendly and recyclable products/packaging to safeguard  
consumers’ health while minimizing the impact on the environment.  
Intel® Core™2 Processor Ready  
This motherboard supports the latest Intel® Core™2 processor in the LGA775  
package. With the new Intel® Core™ microarchitecture technology and 1066/800/  
533 MHz FSB, Intel® Core™2 processor is one of the most powerful and energy  
efficient CPU in the world.  
1-2  
Chapter 1: Product introduction  
Intel® Q965 Express Chipset  
The Intel® Q965 Express Chipset provides all business wth more effective costs  
management, safer computing environmrnt, and deploys more responsive PCs. It  
features the integrated graphics engine, Intel® Graphics Media Accelerator 3000,  
and Intel® Active Management Technology, both of which provide advancements in  
manageability, graphics, stability, data protection, and optimizations to support the  
most advanced business operating systems.  
Intel® vPro™ Technology  
The Intel® vProTechnology allows IT organizations to remotely manage corporate  
PCs, even when they are powered off or with non-functional operating systems.  
It features the Intel® Active Management Technology and offers IT organizations  
a lighter-weight form of virtualization to audit all Intel® AMT-based platforms in  
a network environment. PCs with Intel® vProTechnology allow IT departments  
to remotely retrieve assets and hardware/software inventories, contain security  
threats, resolve system problems, and increase the uptime of desktops with lower  
maintenance costs. To enable the Intel® vProTechnology, first enable the related  
vProTechnology settings. See page 2-26 for details.  
DDR2 memory support  
The motherboard supports DDR2 memory that features data transfer rates  
of 800/667/533 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 12.8 GB/s.  
Without restriction to the memory size across the two channels, the motherboard  
allows you to install DIMMs with different memory size and enjoy dual-channel  
feature at the same time. See page 1-18 for details.  
Serial ATA 3.0 Gb/s technology and SATA on the go  
This motherboard supports the next-generation hard drives based on the Serial  
ATA (SATA) 3Gb/s storage specification, delivering enhanced scalability and  
doubling the bus bandwidth for high-speed data retrieval and saves. The external  
SATA port located at the back I/O provides smart setup and hot-plug functions.  
Easily backup photos, videos and other entertainment contents to external devices.  
See page 1-30 and 1-34 for details.  
IEEE 1394a support  
The IEEE 1394a interface provides high speed digital interface for audio/video  
appliances such as digital television, digital video camcorders, storage peripherals  
& other PC portable devices. See page 1-30 and 1-34 for details.  
ASUS P5B-VM DO  
1-3  
Dual RAID solution  
The Intel® ICH8DO chipset incorporates six Serial ATA connectors with high  
performance RAID 0, 1, 5 and 10 functions. The JMicron controller provides  
another two Serial ATA connectors for RAID 0, 1, and JBOD functions. Making this  
motherboard an ideal solution to enhance hard disk performance and data back up  
protection without the cost of add-on cards. See page 1-34 and 1-35 for details.  
S/PDIF digital sound ready  
The motherboard supports the S/PDIF-out (SONY-PHILIPS Digtal Interface)  
function through the S/PDIF interface at mid-board. It allows to transfer digital  
audio without converting to analog format and keeps the best signal quality. See  
pages 1-32 for details.  
High Definition Audio  
Enjoy high-end sound quality on your PC! The onboard 8-channel HD audio (High  
Definition Audio, previously codenamed Azalia) CODEC enables high-quality  
192KHz/24-bit audio output, jack-sensing feature, retasking functions and multi-  
streaming technology that simultaneously sends different audio streams to different  
destinations. You can now talk to your partners on the headphone while playing  
multi-channel network games. See page 1-38 for details.  
1.3.2  
ASUS Features  
ASUS Quiet Thermal Solution  
ASUS Quiet Thermal solution makes system more stable and enhances the  
overclocking capability.  
ASUS Advanced Q-Fan  
The ASUS advanced Q-Fan technology on P5B Series is powered by Intel  
Quiet System Technology; It makes the change of fan speed more smoothly.  
It’s better in fan use, and efficiently reduces the noise caused by fans’  
abruptly speeding up. Moreover, Advanced Q-Fan has a better control over a  
constant temperature system environment. See page 2-32 for details.  
ASUS Crystal Sound  
This feature can enhance speech-centric applications like Skype, online game,  
video conference and recording.  
Noise Filter  
This feature detects repetitive and stationary noises (non-voice signals) like  
computer fans, air conditioners, and other background noises then eliminates  
it in the incoming audio stream while recording.  
1-4  
Chapter 1: Product introduction  
ASUS EZ DIY  
ASUS EZ DIY feature collection provides you easy ways to install computer  
components, update the BIOS or back up your favorite settings.  
ASUS Q-Connector  
ASUS Q-Connector allows you to easily connect or disconnect the chassis  
front panel cables to the motherboard. This unique module eliminates the  
trouble of connecting the system panel cables one at a time and avoiding  
wrong cable connections. See page 1-41 for details.  
ASUS CrashFree BIOS 3  
The ASUS CrashFree BIOS 3 allows users to restore corrupted BIOS data  
from a USB flash disk containing the BIOS file. See page 2-6 for details.  
ASUS EZ Flash 2  
EZ Flash 2 is a user-friendly BIOS update utility. Simply press the predefined  
hotkey to launch the utility and update the BIOS without entering the OS.  
Update your BIOS easily without preparing a bootable diskette or using an  
OS-based flash utility. See page 2-3 for details.  
1.3.3  
ASUS Special Features  
ASUS MyLogo2™  
This feature allows you to convert your favorite photo into a 256-color boot logo for  
a more colorful and vivid image on your screen. See page 2-34 for details.  
1.3.4  
ASUS Intelligent Overclocking Features  
C.P.R. (CPU Parameter Recall)  
The C.P.R. feature of the motherboard BIOS allows automatic re-setting to the  
BIOS default settings in case the system hangs due to overclocking. When the  
system hangs due to overclocking, C.P.R. eliminates the need to open the system  
chassis and clear the RTC data. Simply shut down and reboot the system, and the  
BIOS automatically restores the CPU default setting for each parameter.  
Due to chipset behavior, AC power off is required prior to using C.P.R. function.  
ASUS P5B-VM DO  
1-5  
1.4  
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, and/or components.  
Onboard LED  
The motherboard comes with a standby power LED that 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  
ON  
Standby  
Power  
OFF  
Powered  
Off  
P5B-VM DO Onboard LED  
1-6  
Chapter 1: Product introduction  
1.5  
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  
motherboard components.  
1.5.1  
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.  
1.5.2  
Screw holes  
Place eight (8) 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  
ASUS P5B-VM DO  
1-7  
1.5.3  
Motherboard layout  
24.5cm (9.6in)  
PWR_FAN  
CHA_FAN  
PS/2KBMS  
T: Mouse  
B: Keyboard  
KBPWR  
CPU_FAN  
Super I/O  
ESATA  
LGA775  
VGA  
1394_USB12  
ATX12V  
LAN_USB34  
Intel  
Q965  
RTL8111B  
AUDIO  
SATA_RAID1  
PCIEX16  
JMicron  
JMB363  
COM1  
TPM_SLOT  
SATA2  
CHA_FAN2  
SATA1  
PCI1  
TSB43AB22A  
SB_PWR  
PCI2  
Intel  
ICH8DO  
CR2032 3V  
Lithium Cell  
CMOS Power  
SATA5  
SATA3  
SATA6  
SATA4  
PCIEX4_1  
AD1988  
CD  
PRI_EIDE  
PANEL  
SPDIF_OUT  
IE1394_2  
ADH  
CHASSIS  
CLRTC  
AAFP  
USB56  
USB78  
USB910  
Refer to 1.10 Connectors for more information about rear panel connectors  
and internal connectors.  
1-8  
Chapter 1: Product introduction  
1.5.4  
Layout contents  
Slots  
Page  
1-18  
1-27  
1-27  
1-27  
1.  
2.  
3.  
4.  
DDR2 DIMM slots  
PCI slots  
PCI Express x 4 slot  
PCI Express x16 slot  
Jumper  
Page  
1-28  
1-29  
1.  
2.  
Clear RTC RAM (3-pin CLRTC)  
Keyboard power (3-pin KBPWR)  
Rear panel connectors  
Page  
1-30  
1-30  
1-30  
1-30  
1-30  
1-30  
1-30  
1-30  
1-30  
1-30  
1-31  
1-31  
1-31  
1-31  
1-31  
1.  
PS/2 mouse port (green)  
2.  
Parallel port  
3.  
IEEE 1394a port  
4.  
LAN (RJ-45) port  
5.  
Rear Speaker Out port (black)  
Center/Subwoofer port (orange)  
Line In port (light blue)  
Line Out port (lime)  
6.  
7.  
8.  
9.  
Microphone port (pink)  
Side Speaker Out port (gray)  
USB 2.0 ports 1 and 2  
USB 2.0 ports 3 and 4  
VGA port  
10.  
11.  
12.  
13.  
14.  
15.  
External SATA port  
PS/2 keyboard port (purple)  
ASUS P5B-VM DO  
1-9  
Internal connectors  
Page  
1-32  
1-32  
1-33  
1-34  
1.  
2.  
3.  
4.  
Floppy disk drive connector (34-1 pin FLOPPY)  
Digital Audio connector (4-1 pin SPDIF_OUT)  
IDE connector (40-1 pin PRI_IDE)  
ICH8DO Serial ATA connectors (7-pin SATA1 [red], SATA2 [red],  
SATA3 [red], SATA4 [red], SATA5 [black], SATA6 [black])  
5.  
IEEE 1394a port connector (10-1 pin IE1394_2)  
JMicron® JMB363 Serial ATA RAID connector (7-pin SATA_RAID1)  
TPM connector (20-1 pin TPM_SLOT)  
1-34  
1-35  
1-35  
1-36  
1-36  
1-37  
6.  
7.  
8.  
USB connectors (10-1 pin USB56, USB 78, USB910)  
Optical drive audio connector (4-pin CD)  
9.  
10.  
CPU, chassis, and power fan connectors (4-pin CPU_FAN, 3-pin  
CHA_FAN, 3-pin CHA_FAN2, 3-pin PWR_FAN)  
11.  
12.  
13.  
14.  
15.  
Serial port connector (10-1 pin COM1)  
1-37  
1-38  
1-38  
1-39  
1-40  
Chassis intrusion connector (4-1 pin CHASSIS)  
Front panel audio connector (10-1 pin AAFP)  
ATX power connectors (24-pin EATXPWR, 4-pin EATX12V)  
System panel connector (20-8-pin PANEL)  
System power LED (2-pin PLED)  
Hard disk drive activity LED (2-pin IDE_LED)  
System warning speaker (4-pin SPEAKER)  
ATX power button/soft-off button (2-pin PWRSW)  
Reset button (2-pin RESET)  
1-10  
Chapter 1: Product introduction  
1.6  
Central Processing Unit (CPU)  
The motherboard comes with a surface mount LGA775 socket designed for the  
Intel® Core™2 Extreme/Core™2 Duo/Pentium® D/Pentium® 4 and Celeron® D  
processors.  
Make sure the AC power is off before you install the CPU.  
If installing a dual-core CPU, connect the chassis fan cable to the  
CHA_FAN connector to ensure system stability.  
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 will shoulder the cost  
of repair 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.  
ASUS P5B-VM DO  
1-11  
1.6.1  
Installing the CPU  
To install a CPU:  
1.  
Locate the CPU socket on the motherboard.  
P5B-VM DO 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.  
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.  
1-12  
Chapter 1: Product introduction  
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  
Alignment key  
5.  
Position the CPU over the  
socket, making sure that  
the gold triangle is on the  
bottom-left corner of the  
socket then fit the socket  
alignment key into the  
CPU notch.  
CPU notch  
Gold triangle mark  
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!  
A
6.  
7.  
Close the load plate (A), then  
push the load lever (B) until it  
snaps into the retention tab.  
If installing a dual-core CPU,  
B
connect the chassis fan cable  
to the CHA_FAN1 connector to  
ensure system stability.  
The motherboard supports Intel® LGA775 processors with the Intel® Enhanced  
Memory 64 Technology (EM64T), Enhanced Intel SpeedStep® Technology  
(EIST), and Hyper-Threading Technology.  
ASUS P5B-VM DO  
1-13  
1.6.2  
Installing the CPU heatsink and fan  
The Intel® LGA775 processor requires a specially designed heatsink and fan  
assembly to ensure optimum thermal condition and performance.  
When you buy a boxed Intel® processor, the package includes the CPU fan  
and heatsink assembly. If you buy a CPU separately, make sure that you  
use only Intel®-certified multi-directional heatsink and fan.  
Your Intel® 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.  
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.)  
1-14  
Chapter 1: Product introduction  
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  
P5B-VM DO CPU Fan Connector  
Do not forget to connect the CPU fan connector! Hardware monitoring errors  
can occur if you fail to plug this connector.  
ASUS P5B-VM DO  
1-15  
1.6.3  
Uninstalling the CPU heatsink and fan  
To uninstall the CPU heatsink and fan:  
1.  
2.  
Disconnect the CPU fan cable from  
the connector on the motherboard.  
Rotate each fastener  
counterclockwise.  
3.  
Pull up two fasteners at a time in  
a diagonal sequence to disengage  
the heatsink and fan assembly  
from the motherboard.  
B
B
A
A
A
B
B
A
4.  
Carefully remove the heatsink  
and fan assembly from the  
motherboard.  
1-16  
Chapter 1: Product introduction  
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 P5B-VM DO  
1-17  
1.7  
System memory  
1.7.1  
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:  
P5B-VM DO 240-pin DDR2 DIMM socket  
Channel  
Channel A  
Channel B  
Sockets  
DIMM_A1 and DIMM_A2  
DIMM_B1 and DIMM_B2  
Install at least a memory module in DIMM_A1 or DIMM_A2 slot to support the  
Intel® Quiet System Technology and for optimum performance. Otherwise,  
system will halt.  
1.7.2  
Memory configurations  
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2  
DIMMs into the DIMM sockets.  
1-18  
Chapter 1: Product introduction  
You may install varying memory sizes in Channel A and Channel B. The  
system maps the total size of the lower-sized channel for the dual-channel  
configuration. Any excess memory from the higher-sized channel is then  
mapped for single-channel operation.  
Always install DIMMs with the same CAS latency. For optimum compatibility,  
it is recommended that you obtain memory modules from the same vendor.  
If you install four 1 or 2GB memory modules, the system may only recognize  
less than 3GB because the address space is reserved for other critical  
functions. This limitation appears on Windows® XP 32-bit operation system  
which does not support Physical Address Extension (PAE).  
If you install Windows® XP 32-bit operation system, a total memory of less  
than 3GB is recommended.  
This motherboard does not support memory modules made up of 128 Mb  
chips or double sided x16 memory modules.  
Notes on memory limitations  
Due to chipset limitation, this motherboard can only support up to  
8 GB on the operating systems listed below. You may install a maximum of  
2 GB DIMMs on each slot, but only DDR2-533 and DDR2-667 2 GB density  
modules are available for this configuration.  
32-bit  
Windows 2000 Advanced Server  
64-bit  
Windows XP Professional x64 Edition  
Some old-version DDR2-800/667 DIMMs may not match Intel®’s  
On-Die-Termination (ODT) requirement and will automatically downgrade  
to run at DDR2-533. If this happens, contact your memory vendor to check  
the ODT value.  
Due to chipset limitation, DDR2-800 with CL=4 will be downgraded to run  
at DDR2-667 by default setting. If you want to operate with lower latency,  
adjust the memory timing manually.  
Due to chipset limitation, DDR2-667 with CL=3 will be downgraded to run  
at DDR2-533 by default setting. If you want to operate with lower latency,  
adjust the memory timing manually.  
The total memory may has 8MB reduction under Single Channel mode, and  
16MB reduction under Dual Channel mode because the address space  
is reserved for the Intel® vProTechnology and the Intel® Quiet System  
Technology.  
ASUS P5B-VM DO  
1-19  
P5B-VM DO Motherboard Qualified Vendors Lists (QVL)  
DDR2-800MHz capability  
SS/  
DIMM support  
Size  
Vendor  
Chip No.  
Part No.  
DS  
SS  
DS  
DS  
SS  
DS  
DS  
SS  
SS  
DS  
SS  
SS  
SS  
DS  
A
B
C
512MB  
1024MB  
1024MB  
1024MB  
2048MB  
512MB  
256MB  
512MB  
1024MB  
512MB  
256MB  
512MB  
1024MB  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
Qimonda  
K4T51083QC  
KVR800D2N5/512  
K4T51083QC  
KVR800D2N5/1G  
Heat-Sink Package  
Heat-Sink Package  
Heat-Sink Package  
HYB18T256800AF25F  
HYB18T512160BF-25F  
HYB18T512800BF25F  
HYB18T512800BF25F  
EDD339XX  
KHX6400D2LL/1G  
KHX6400D2LLK2/1GN  
KHX6400D2K2/2G  
HYS64T64020HU-25F-A  
HYS64T32000HU-25F-B  
HYS64T64000HU-25F-B  
HYS64T128020HU-25F-B  
M378T6553CZ3-CE7  
M378T3354CZ3-CE7  
M378T6553CZ3-CE7  
M378T2953CZ3-CE7  
Qimonda  
Qimonda  
Qimonda  
SAMSUNG  
SAMSUNG  
SAMSUNG  
SAMSUNG  
K4T51163QC-ZCE7  
ZCE7K4T51083QC  
ZCE7K4T51083QC  
512MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
1024MB  
1024MB  
2048MB  
512MB  
512MB  
512MB  
1024MB  
512MB  
1024MB  
512MB  
Hynix  
HY5PS12821BFP-S5  
HY5PS12821BFP-S5  
5JAIIZ9DQQ  
SS  
DS  
SS  
DS  
SS  
DS  
SS  
DS  
DS  
SS  
DS  
SS  
SS  
SS  
DS  
SS  
DS  
SS  
HYMP564U64BP8-S5  
HYMP512U64BP8-S5  
MT8HTF6464AY-80EA3  
MT16HTF12864AY-80EA3  
MT8HTF6464AY-80ED4  
MT16HTF12864AY-80ED4  
MT8HTF6464AY-80ED4  
MT16HTF12864AY-80ED4  
CM2X1024-6400C4  
Hynix  
MICRON  
MICRON  
MICRON  
MICRON  
MICRON  
MICRON  
CORSAIR  
ELPIDA  
ELPIDA  
A-DATA  
A-DATA  
Crucial  
5JAIIZ9DQQ  
5ZD22D9GKX  
5ZD22D9GKX  
6CD22D9GKX  
6CD22D9GKX  
Heat-Sink Package  
E1108AB-8E-E(ECC)  
E1108AB-8E-E(ECC)  
N/A  
EBE10EE8ABFA-8E-E  
EBE21EE8ABFA-8E-E  
M2OAD6G3H3160J1E52  
M20AD6G3H3160I1E5E  
BL6464AA804.8FD  
AD29608A8A-25EG  
Heat-Sink Package  
Heat-Sink Package  
Heat-Sink Package  
Heat-Sink Package  
K4T51083QC  
Crucial  
BL12864AA804.16FD  
AHU512E800C5K1C  
AHU01GE800C5K1C  
TS64MLQ64V8J  
Apacer  
Apacer  
Transcend  
1-20  
Chapter 1: Product introduction  
P5B-VM DO Motherboard Qualified Vendors Lists (QVL)  
DDR2-667MHz capability  
SS/  
DIMM support  
Size  
Vendor  
Chip No.  
Part No.  
DS  
SS  
DS  
SS  
SS  
SS  
DS  
SS  
SS  
SS  
SS  
SS  
DS  
SS  
DS  
SS  
SS  
DS  
SS  
SS  
DS  
DS  
SS  
SS  
SS  
DS  
SS  
SS  
SS  
SS  
DS  
SS  
SS  
SS  
DS  
DS  
DS  
SS  
DS  
SS  
SS  
DS  
SS  
DS  
SS  
DS  
SS  
DS  
A
B
C
512MB  
1024MB  
512MB  
256MB  
512MB  
1024MB  
256MB  
256MB  
512MB  
256MB  
512MB  
1024MB  
512MB  
1024MB  
256MB  
512MB  
1024MB  
256MB  
512MB  
1024MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
512MB  
512MB  
256MB  
512MB  
1024MB  
256MB  
512MB  
512MB  
1024MB  
1024MB  
1024MB  
512MB  
1024MB  
512MB  
512MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
SAMSUNG  
SAMSUNG  
SAMSUNG  
SAMSUNG  
Hynix  
E5108AE-6E-E  
KVR667D2N5/512  
E5108AE-6E-E  
KVR667D2N5/1G  
E5108AE-6E-E  
KVR667D2E5/512  
HYB18T256800AF3  
D6408TEBGGL3U  
D6408TEBGGL3U  
HYB18T256800AF3S  
HYB18T512160AF-3S  
HYB18T512800AF3S  
HYB18T256800AF3S(ECC)  
HYB18T512800AF3S(ECC)  
HYB18T512800AF3S(ECC)  
HYB18T512800BF3S(ECC)  
HYB18T512800BF3S(ECC)  
HYB18T512160BF-3S  
HYB18T512800BF3S  
HYB18T512800BF3S  
K4T51163QC-ZCE6  
ZCE6K4T51083QC  
ZCE6K4T51083QC  
ZCE6K4T51083QC  
HY5PS12821AFP-Y5  
HY5PS1G831FP-Y5(ECC)  
HY5PS12821AFP-Y5(ECC)  
HY5PS12821AFP-Y5(ECC)  
HY5PS12821AFP-Y4  
HY5PS12821AFP-Y4(ECC)  
MIII00605  
KVR667D2N5/256  
KVR667D2N5/512  
KVR667D2N5/1G  
KVR667D2N5/256  
HYS64T32000HU-3S-A  
HYS64T64000HU-3S-A  
HYS72T32000HU-3S-A  
HYS72T64000HU-3S-A  
HYS72T128020HU-3S-A  
HYS72T64000HU-3S-B  
HYS72T128020HU-3S-B  
HYS64T32000HU-3S-B  
HYS64T64000HU-3S-B  
HYS64T128020HU-3S-B  
M378T3354CZ0-CE6  
M378T6553CZ0-CE6  
M378T2953CZ0-CE6  
M378T2953CZ3-CE6  
HYMP564U64AP8-Y5  
HYMP112U72P8-Y5  
HYMP564U72AP8-Y5  
HYMP512U72AP8-Y5  
HYMP564U64AP8-Y4  
HYMP564U72AP8-Y4  
VS256MB667D2  
Hynix  
Hynix  
Hynix  
Hynix  
Hynix  
CORSAIR  
CORSAIR  
CORSAIR  
ELPIDA  
64M8CFEG  
VS512MB667D2  
64M8CFEG  
VS1GB667D2  
E2508AB-6E-E  
EBE25UC8ABFA-6E-E  
EBE51UD8AEFA-6E-E  
M2OAD5G3H3166I1C52  
M2OAD5G3I4176I1C52  
BL12864AA663.16FD  
BL12864AL664.16FD  
AU512E667C5KBGC  
AU01GE667C5KBGC  
AU512E667C5KBGC  
AU512E667C5KBGC  
AU01GE667C5KBGC  
KLCC28F-A8KB5  
ELPIDA  
E5108AE-6E-E  
A-DATA  
AD29608A8A-3EG  
AD29608A8A-3EG  
Heat-Sink Package  
Heat-Sink Package  
AM4B5708GQJS7E  
AM4B5708GQJS7E  
AM4B5708PJS7E  
AM4B5708GQJS7E  
N/A  
A-DATA  
crucial  
crucial  
Apacer  
Apacer  
Apacer  
Apacer  
Apacer  
Kingmax  
Kingmax  
Transcend  
Transcend  
Transcend  
Transcend  
KKEA88B4LAUG-29DX  
KKEA88B4LAUG-29DX  
E5108AE-6E-E  
KLCD48F-A8KB5  
TS64MLQ64V6J  
E5108AE-6E-E  
TS128MLQ64V6J  
J12Q3AB-6  
JM367Q643A-6  
J12Q3AB-6  
JM388Q643A-6  
ASUS P5B-VM DO  
1-21  
P5B-VM DO Motherboard Qualified Vendors Lists (QVL)  
DDR2-553 MHz capability  
SS/  
DIMM support  
Size  
Vendor  
Chip No.  
Part No.  
DS  
SS  
SS  
DS  
SS  
SS  
DS  
SS  
SS  
DS  
SS  
DS  
SS  
DS  
SS  
DS  
DS  
SS  
SS  
DS  
DS  
SS  
SS  
DS  
SS  
DS  
A
B
C
256MB  
512MB  
1024MB  
256MB  
512MB  
1024MB  
256MB  
512MB  
1024MB  
256MB  
1024MB  
512MB  
1024MB  
512MB  
1024MB  
1024MB  
512MB  
512MB  
1024MB  
1024MB  
512MB  
512MB  
1024MB  
512MB  
1024MB  
KINGSTON  
KINGSTON  
KINGSTON  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
Qimonda  
SAMSUNG  
SAMSUNG  
Hynix  
E5116AF-5C-E  
KVR533D2N4/256  
HYB18T512800AF37  
5YDIID9GCT  
KVR533D2N4/512  
KVR533D2N4/1G  
HYB18T512160AF-3.7  
HYB18T512800AF37  
HYB18T512800AF37  
HYB18T5121608BF-3.7  
HYB18T512800BF37  
HYB18T512800BF37  
HYB18T256800AF37(ECC)  
HYB18T512800AF37(ECC)  
ZCD5K4T51083QC  
ZCD5K4T51083QC  
HY5PS12821F-C4  
HY5PS12821F-C4  
HY5PS12821F-C4(ECC)  
HY5PS12821FP-C4(ECC)  
HY5PS12821AFP-C3  
HY5PS12821AFP-C3  
64M8CEDG  
HYS64T32000HU-3.7-A  
HYS64T64000HU-3.7-A  
HYS64T128020HU-3.7-A  
HYS64T32000HU-3.7-B  
HYS64T64000HU-3.7-B  
HYS64T128020HU-3.7-B  
HYS72T32000HU-3.7-A  
HYS72T128020HU-3.7-A  
M378T6553CZ3-CD5  
M378T2953CZ3-CD5  
HYMP564U648-C4  
HYMP512U648-C4  
HYMP512U728-C4  
HYMP564U728-C4  
HYMP564U64AP8-C3  
HYMP512U64AP8-C3  
VS1GB533D2  
Hynix  
Hynix  
Hynix  
Hynix  
Hynix  
CORSAIR  
ELPIDA  
E5108AB-5C-E  
EBE51UD8ABFA-5C-E  
KLBC28F-A8EB4  
KINGMAX  
KINGMAX  
KINGMAX  
KINGMAX  
E5108AE-5C-E  
E5108AE-5C-E  
KLBD48F-A8EB4  
KKEA88E4AAK-37  
5MB22D9DCN  
KLBC28F-A8KE4  
KLBD48F-A8ME4  
SS - Single-sided DS - Double-sided  
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 four modules inserted into both the yellow and black slots as two pairs of Dual-channel  
memory configuration.  
Visit the ASUS website for the latest DDR2-800/667/533 MHz QVL.  
1-22  
Chapter 1: Product introduction  
1.7.3  
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.  
2.  
3.  
Unlock a DIMM socket by  
pressing the retaining clips  
outward.  
1
Align a DIMM on the socket  
such that the notch on the DIMM  
matches the break on the socket.  
1
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.  
1.7.4  
Removing a DIMM  
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
DDR2 DIMM notch  
1
2.  
Remove the DIMM from the socket.  
ASUS P5B-VM DO  
1-23  
1.8  
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 motherboard  
components.  
1.8.1  
Installing an expansion card  
To install an expansion card:  
1.  
2.  
3.  
4.  
Before installing the expansion card, read the documentation that came with  
it and make the necessary hardware settings for the card.  
Remove the system unit cover (if your motherboard is already installed in a  
chassis).  
Remove the bracket opposite the slot that you intend to use. Keep the screw  
for later use.  
Align the card connector with the slot and press firmly until the card is  
completely seated on the slot.  
5.  
6.  
Secure the card to the chassis with the screw you removed earlier.  
Replace the system cover.  
1.8.2  
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 2 for information on BIOS setup.  
2.  
3.  
Assign an IRQ to the card. Refer to the tables on the next page.  
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.  
1-24  
Chapter 1: Product introduction  
1.8.3  
Interrupt assignments  
Standard interrupt assignments  
IRQ  
0
Priority  
Standard function  
1
2
System Timer  
1
Keyboard Controller  
2
Redirect to IRQ#9  
3
11  
12  
13  
14  
15  
3
IRQ holder for PCI steering*  
Communications Port (COM1)*  
IRQ holder for PCI steering*  
Floppy Disk Controller  
Printer Port (LPT1)*  
4
5
6
7
8
System CMOS/Real Time Clock  
9
4
5
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  
10  
11  
12  
13  
14  
15  
6
7
8
9
10  
Secondary IDE Channel  
* These IRQs are usually available for ISA or PCI devices.  
ASUS P5B-VM DO  
1-25  
IRQ assignments for this motherboard  
A
B
C
D
E
F
G
H
PCI Slot 1  
PCI Slot 2  
PCIE x 16_1  
PCIE x 4_1  
shared  
shared  
shared  
shared  
Onboard ESATA,  
SATA_RAID  
shared  
shared  
shared  
Onboard PRI_IDE  
Onboard HD Audio  
(AD1988)  
shared  
Onboard GbEthernet  
(82566DM)  
shared  
USB 2.0 EHCI#1  
USB 2.0 EHCI#2  
USB12 UHCI#1  
USB34 UHCI#2  
USB56 UHCI#3  
USB78 UHCI#4  
USB910 UHCI#5  
SATA1/2/5/6 (ICH8DO)  
SATA3/4 (ICH8DO)  
IDE-R controller  
KT controller  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
shared  
1-26  
Chapter 1: Product introduction  
1.8.4  
PCI slots  
The PCI slots support cards such as  
a LAN card, SCSI card, USB card,  
and other cards that comply with PCI  
specifications. The figure shows a LAN  
card installed on a PCI slot.  
1.8.5  
PCI Express x4 slot  
This motherboard supports PCI Express  
x4 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 x4 slot.  
1.8.6  
PCI Express x16 slot  
This motherboard supports PCI Express  
x16 graphic cards that comply with the  
PCI Express specifications. The figure  
shows a graphics card installed on the  
PCI Express x16 slot.  
ASUS P5B-VM DO  
1-27  
1.9  
Jumper  
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. Reinstall 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!  
CLRTC  
1 2  
2 3  
Normal  
(Default)  
Clear CMOS  
P5B-VM DO 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 reset parameter settings to default values.  
Due to the chipset limitation, AC power off is required prior using C.P.R.  
function. You must turn off and on the power supply or unplug and plug the  
power cord before reboot the system.  
1-28  
Chapter 1: Product introduction  
2.  
Keyboard power (3-pin KBPWR)  
This jumper allows you to enable or disable the keyboard wake-up feature.  
Set this jumper to pins 2-3 (+5VSB) to wake up the computer when you press  
a key on the keyboard (the default is the Space Bar). This feature requires  
an ATX power supply that can supply at least 1A on the +5VSB lead, and a  
corresponding setting in the BIOS.  
KBPWR  
3
2
1
2
+5VSB  
+5V  
(Default)  
P5B-VM DO Keyboard Power Setting  
ASUS P5B-VM DO  
1-29  
1.10 Connectors  
1.10.1  
Rear panel connectors  
3
4
5 6  
1
2
7
8
9
13  
15  
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.  
4.  
IEEE 1394a port. This 6-pin IEEE 1394a port provides high-speed  
connectivity for audio/video devices, storage peripherals, PCs, or portable  
devices.  
LAN (RJ-45) port. Supported by Realtek® Gigabit LAN controller, 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  
Activity/Link Speed LED  
LED  
LED  
Status  
Description  
No link  
Status  
OFF  
Description  
OFF  
10 Mbps connection  
100 Mbps connection  
1 Gbps connection  
ORANGE  
BLINKING  
Linked  
ORANGE  
GREEN  
Data activity  
LAN port  
5.  
6.  
Rear Speaker Out port (black). This port connects the rear speakers in a  
4-channel, 6-channel, or 8-channel audio configuration.  
Center/Subwoofer port (orange). This port connects the center/subwoofer  
speakers.  
7.  
8.  
Line In port (light blue). This port connects the tape, CD, DVD player, or  
other audio sources.  
Line Out port (lime). This port connects a headphone or a speaker. In  
4-channel, 6-channel, and 8-channel configuration, the function of this port  
becomes Front Speaker Out.  
9.  
Microphone port (pink). This port connects a microphone.  
10. Side Speaker Out port (gray). This port connects the side speakers in an  
8-channel audio configuration.  
1-30  
Chapter 1: Product introduction  
Refer to the audio configuration table below for the function of the audio ports in  
2, 4, 6, or 8-channel configuration.  
Audio 2, 4, 6, or 8-channel configuration  
Port  
Headset  
4-channel  
6-channel  
8-channel  
2-channel  
Light Blue  
Lime  
Line In  
Line In  
Line In  
Front Speaker Out  
Mic In  
Line In  
Line Out  
Front Speaker Out  
Front Speaker Out  
Mic In  
Pink  
Mic In  
Mic In  
Orange  
Black  
Center/Subwoofer  
Rear Speaker Out  
Center/Subwoofer  
Rear Speaker Out  
Side Speaker Out  
Rear Speaker Out  
Gray  
11. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports  
are available for connecting USB 2.0 devices.  
12. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports  
are available for connecting USB 2.0 devices.  
13. VGA port. This port is for a VGA monitor or other VGA-compatible devices.  
14. External SATA port. This port connects to an external Serial ATA hard disk  
drive. To configure a RAID 0, a RAID 1, or a JBOD set, install and external  
Serial ATA hard disk drive and an internal Serial ATA hard disk drive to the  
SATA connector labeled SATA_RAID or SATA_RAID1.  
The external SATA port supports external Serial ATA 3.0 Gb/s devices. Longer  
cables support higher power requirements to deliver signal up to two meters  
away, and enables improved hot-swap function.  
Before creating a RAID set using Serial ATA hard disks, make sure that you  
have connected the Serial ATA signal cable and installed Serial ATA hard  
disk drives; otherwise, you cannot enter the JMicron RAID utility and SATA  
BIOS setup during POST.  
If you intend to create a RAID configuration using this connector, set the  
JMicron SATA Controller Mode item in the BIOS to [RAID]. See section  
“2.4.6 Onboard Device Configuration” for details.  
DO NOT insert a different connector to this port.  
DO NOTunplug the external SerialATAbox when a RAID 0 or JBOD is configured.  
15. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.  
ASUS P5B-VM DO  
1-31  
1.10.2  
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.  
FLOPPY  
PIN 1  
NOTE: Orient the red markings on  
the floppy ribbon cable to PIN 1.  
P5B-VM DO Floppy Disk Drive Connector  
2.  
Digital Audio connector (4-1 pin SPDIF_OUT)  
This connector is for the S/PDIF audio module to allow digital sound output.  
Connect one end of the S/PDIF audio cable to this connector and the other  
end to the S/PDIF module.  
SPDIF_OUT  
GND  
Spdif out  
+5V  
P5B-VM DO SPDIF OUT connector  
The S/PDIF out module is purchased separately.  
1-32  
Chapter 1: Product introduction  
3.  
IDE connector (40-1 pin PRI_EIDE)  
The onboard IDE connector is for the Ultra DMA 133/100/66 signal cable.  
There are three connectors on each Ultra DMA 133/100/66 signal cable:  
blue, black, and gray. Connect the blue connector to the motherboard’s IDE  
connector, then select one of the following modes to configure your device.  
Drive jumper setting  
Mode of  
Cable connector  
device(s)  
Single device  
Two devices  
Cable-Select or Master  
Cable-Select  
-
Black  
Black  
Master  
Slave  
Master  
Slave  
Gray  
Master  
Slave  
Black or gray  
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.  
If any device jumper is set as “Cable-Select,” make sure all other device  
jumpers have the same setting.  
PRI_EIDE  
PIN1  
NOTE: Orient the red markings  
(usually zigzag) on the ID  
ribbon cable to PIN 1.  
P5B-VM DO IDE connector  
ASUS P5B-VM DO  
1-33  
4.  
ICH8DO Serial ATA connectors (7-pin SATA1[red], SATA2 [red], SATA3  
[red], SATA4 [red], SATA5 [black], SATA6 [black])  
These connectors are for the Serial ATA signal cables for Serial ATA hard disk  
drives.  
SATA1  
SATA5  
SATA3  
SATA2  
SATA6  
SATA4  
P5B-VM DO SATA connectors  
right angle side  
Connect the right-angle side  
of SATA signal cable to SATA  
device. Or you may connect the  
right-angle side of SATA cable to  
the onboard SATA port to avoid  
mechanical conflict with huge  
graphics cards.  
5.  
IEEE 1394a port connector (10-1 pin IE1394_2)  
This connector is for a IEEE 1394a port. Connect the IEEE 1394a module  
cable to this connector, then install the module to a slot opening at the back  
of the system chassis.  
IE1394_2  
1
P5B-VM DO IEEE 1394a Connector  
The IEEE 1394a module is purchased separately.  
1-34  
Chapter 1: Product introduction  
6.  
JMicron JMB363® Serial ATA RAID connector (7-pin SATA_RAID1)  
This connector is for a Serial ATA signal cable. This connector supports a  
Serial ATA hard disk drive, which you can combine with an external Serial  
ATA hard disk drive to configure for RAID via the unboard Serial ATA RAID  
controller.  
The JMicron controller mode item in the BIOS is set to [BASIC] by default.  
When set to [RAID], this item allows you to use the connectors to build a RAID  
set. See section “2.4.6 Onboard Device Configuration” for details.  
SATA_RAID1  
GND  
RSATA_RXN1  
RSATA_RXP1  
GND  
RSATA_TXN1  
RSATA_TXP1  
GND  
P5B-VM DO SATA RAID connector  
Before creating a RAID set using Serial ATA hard disks, make sure that you  
have connected the Serial ATA signal cables and installed Serial ATA hard disk  
drives; otherwise, you cannot enter the JMicron® JMB363 RAID utility and SATA  
BIOS setup during POST.  
7.  
TPM connector (20-1 pin TPM_SLOT)  
This connector supports a Trusted Platform Module (TPM) system, which can  
securely store keys, digital certificates, passwords, and data. A TPM system  
also helps enhance network security, protects digital identities, and ensures  
platform integrity. See section “2.4.3 TPM Configuration” for details.  
TPM  
P5B-VM DO TPM connector  
ASUS P5B-VM DO  
1-35  
8.  
USB connectors (10-1 pin USB56, USB 78, USB910)  
These connectors are for USB 2.0 ports. Connect the USB 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.  
USB56  
USB78  
USB910  
P5B-VM DO USB 2.0 connectors  
Never connect a 1394 cable to the USB connectors. Doing so will damage the  
motherboard!  
You can connect the USB cable to ASUS Q-Connector (USB, blue) first, and  
then install the Q-Connector (USB) to the USB connector onboard.  
The USB module is purchased separately.  
9.  
Optical drive audio connector (4-pin CD)  
These connectors allow you to receive stereo audio input from sound sources  
such as a CD-ROM, TV tuner, or MPEG card.  
CD  
(black)  
Right Audio Channel  
Ground  
Ground  
Left Audio Channel  
P5B-VM DO Internal Audio Connector  
1-36  
Chapter 1: Product introduction  
10. CPU, chassis, and power fan connectors  
(4-pin CPU_FAN, 3-pin CHA_FAN, 3-pin CHA_FAN2, 3-pin PWR_FAN)  
The fan connectors support cooling fans of 350 mA ~ 2000 mA (24 W max.)  
or a total of 1 A ~ 7 A (84 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!  
CHA_FAN  
CPU_FAN  
PWR_FAN  
GND  
+12V  
Rotation  
CPU_FAN  
PWR_FAN  
CHA_FAN2  
CHA_FAN  
CHA_FAN2  
GND  
+12V  
Rotation  
P5B-VM DO Fan connectors  
Only the CPU-FAN and CHA-FAN connectors support the ASUS  
Advanced Q-Fan feature.  
11. Serial port connector (10-1 pin COM1)  
This connector is for a serial (COM) port. Connect the serial port module  
cable to this connector, then install the module to a slot opening at the back  
of the system chassis.  
COM1  
PIN1  
P5B-VM DO Serial port connector  
The COM module is purchased separately.  
ASUS P5B-VM DO  
1-37  
12. 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 pin labeled “Chassis Signal” and “ Ground” are shorted with  
a jumper cap. Remove the jumper caps only when you intend to use the  
chassis intrusion detection feature.  
CHASSIS  
(Default)  
P5B-VM DO Chassis Intrusion connector  
13. Front panel audio connector (10-1 pin AAFP)  
This connector is for a chassis-mounted front panel audio I/O module that  
supports either HD Audio or legacy AC`97 audio standard. Connect one end  
of the front panel audio I/O module cable to this connector.  
Azalia-compliant  
pin definition  
Legacy AC 97-compliant  
pin definition  
AAFP  
HP_L  
Jack_Sense  
HP_R  
NC  
Line out_L  
NC  
HP_HD  
MIC2_JD  
PRESENSE#  
AGND  
NC  
NC  
AGND  
Line out_R  
MIC2_R  
MIC2_L  
MIC2_R  
MIC2_L  
P5B-VM DO Front panel audio connector  
We recommend that you connect a high-definition front panel audio module  
to this connector to avail of the motherboard’s high-definition audio capability.  
By default, this connector is set to [HD Audio]. If you want to connect a AC’  
97 front panel audio module to this connector, set the Front Panel Support  
Type item in the BIOS setup to [AC97]. See section 2.4.6 Onboard Device  
Configuration for details.  
1-38  
Chapter 1: Product introduction  
14. ATX power connectors (24-pin EATXPWR, 4-pin EATX12V)  
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.  
EATX12V  
GND  
+12V DC  
GND  
+12V DC  
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  
+5 Volts  
Ground  
P5B-VM DO ATX Power connector  
+5 Volts  
Ground  
+3 Volts  
+3 Volts  
For a fully configured system, we recommend that you use a power supply  
unit (PSU) that complies with ATX 12 V Specification 2.0 (or later version)  
and provides a minimum power of 400 W.  
Do not forget to connect the 4-pin EATX12V power plug; otherwise, the  
system will not boot.  
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.  
The ATX 12 V Specification 2.0-compliant (400W) PSU has been tested  
to support the motherboard power requirements with the following  
configuration:  
CPU: Intel® Pentium® Extreme 3.73GHz  
Memory: 512 MB DDR2 (x4)  
Graphics card: ASUS EAX1900XT  
Parallel ATA device: IDE hard disk drive  
Serial ATA device: SATA hard disk drive (x2)  
Optical drive: DVD-RW  
ASUS P5B-VM DO  
1-39  
15. System panel connector (20-8 pin PANEL)  
This connector supports several chassis-mounted functions.  
PLED  
SPEAKER  
PANEL  
IDE_LED  
RESET  
PWRSW  
* Requires an ATX power supply  
P5B-VM DO System Panel Connector  
System power LED (2-pin PLED)  
This 2-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 (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 (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 (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 (2-pin RESET)  
This 2-pin connector is for the chassis-mounted reset button for system  
reboot without turning off the system power.  
1-40  
Chapter 1: Product introduction  
Q-Connector (system panel)  
ASUS Q-Connector allows you to easily to connect the chassis front panel  
cables to the motherboard. Perform these steps to install ASUS Q-Connector.  
Step1.  
Connect the front panel cables to their  
respective connectors on the ASUS Q-  
Connector. Refer to the labels on the  
Q-Connector for proper connection and pin  
definition.  
Step2.  
Carefully connect the ASUS  
Q-Connector to the System panel  
connector.  
The ASUS Q-Connector fits only in one  
orientation; if it doesn’t fit, try reversing  
it.  
Step3.  
When installed, the Q-connector appears  
as shown.  
ASUS P5B-VM DO  
1-41  
1-42  
Chapter 1: Product introduction  
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  
2
2.1  
Managing and updating your BIOS  
The following utilities allow you to manage and update the motherboard Basic  
Input/Output System (BIOS) setup.  
1.  
2.  
ASUS EZ Flash 2 (Updates the BIOS using a floppy disk or USB flash disk.)  
ASUS AFUDOS (Updates the BIOS in DOS mode using a bootable floppy  
disk.)  
3.  
ASUS CrashFree BIOS 3 (Updates the BIOS using a bootable floppy, USB  
Flash disk, or the motherboard support CD when the BIOS file fails or gets  
corrupted.)  
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 or  
a USB flash disk in case you need to restore the BIOS in the future. Copy the  
original motherboard BIOS using the ASUS Update or AFUDOS utilities.  
2.1.1  
Creating a bootable floppy disk  
1.  
Do either 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:/S then 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. Select Create an MS-DOS startup disk from the format options field,  
then click Start.  
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. From the Open field, type  
D:\bootdisk\makeboot a:  
assuming that D: is your optical drive.  
e. Press <Enter>, then follow screen instructions to continue.  
2-2  
Chapter 2: BIOS setup  
2.  
Copy the original or the latest motherboard BIOS file to the bootable floppy disk.  
2.1.2  
ASUS EZ Flash 2 utility  
The ASUS EZ Flash 2 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 2 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 2:  
1.  
Visit the ASUS website (www.asus.com) to download the latest BIOS file for  
the motherboard.  
2.  
Save the BIOS file to a floppy disk or a USB flash disk, then restart the system.  
3.  
You can launch the EZ Flash 2 by two methods.  
(1) Insert the floppy disk / USB flash disk that contains the BIOS file to the  
floppy disk drive or the USB port.  
Press <Alt> + <F2> during POST to display the following.  
ASUSTek EZ Flash 2 BIOS ROM Utility V3.00  
FLASH TYPE: SST 25VF016  
Current ROM  
BOARD: P5B-VM-DO  
VER: 0017  
Update ROM  
BOARD: Unknown  
VER: Unknown  
DATE: 10/24/06  
DATE: Unknown  
PATH: A:\  
A:  
Note  
[Enter] Select or Load  
[Tab] Switch  
[B] Backup  
[Up/Down/Home/End] Move  
[ESC] Exit  
(2) Enter BIOS setup program. Go to the Tools menu to select EZ Flash2  
and press <Enter> to enable it.  
You can switch between drives by pressing <Tab> before the correct file  
is found. Then press <Enter>.  
4.  
When the correct BIOS file is found, EZ Flash 2 performs the BIOS update  
process and automatically reboots the system when done.  
This function can support devices such as USB flash disk, or floppy disk  
with FAT 32/16 format only.  
Do not shut down or reset the system while updating the BIOS to prevent  
system boot failure!  
ASUS P5B-VM DO  
2-3  
This function can support devices such as USB flash disk, or floppy disk  
with FAT 32/16 format only.  
Do not shut down or reset the system while updating the BIOS to prevent  
system boot failure!  
2.1.3  
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  
1024KB free space to save the file.  
The succeeding BIOS screens are for reference only. The actual BIOS  
screen displays may not be same as shown.  
1.  
2.  
Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to  
the bootable floppy disk you created earlier.  
Boot the system in DOS mode, then at the prompt type:  
afudos /o[filename]  
where the [filename] is any user-assigned filename 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  
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.  
2-4  
Chapter 2: BIOS setup  
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.  
3.  
Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to  
the bootable floppy disk you created earlier.  
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 /iP5BVMDA.ROM  
4.  
The utility verifies the file and starts updating the BIOS.  
A:\>afudos /iP5BVMDA.ROM  
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))  
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.  
WARNING!! Do not turn off power during flash BIOS  
Reading file ....... done  
Reading flash ...... done  
Advance Check ......  
Erasing flash ...... done  
Writing flash ...... 0x0008CC00 (9%)  
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 /iP5BVMDA.ROM  
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))  
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.  
WARNING!! Do not turn off power during flash BIOS  
Reading file ....... done  
Reading flash ...... done  
Advance Check ......  
Erasing flash ...... done  
Writing flash ...... done  
Verifying flash .... done  
Please restart your computer  
A:\>  
ASUS P5B-VM DO  
2-5  
2.1.4  
ASUS CrashFree BIOS 3 utility  
The ASUS CrashFree BIOS 3 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, the USB flash  
disk, or the floppy disk that contains the updated BIOS file.  
Prepare the motherboard support CD, the USB flash disk, 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 or the USB flash disk to P5BVMDA.ROM.  
If your display monitor is connected to the onboard VGA connector,  
the display monitor will turn-off and the system will beep once while  
CrashFree BIOS 3 starts updating your system. The system will  
beep once again while the process is finished, and the display will  
return after the system restarts.  
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 “P5BVMDA.ROM”. Completed.  
Start flashing...  
4.  
Restart the system after the utility completes the updating process.  
2-6  
Chapter 2: BIOS setup  
Recovering the BIOS from the support CD  
To recover the BIOS from the support CD:  
1.  
2.  
3.  
Remove any floppy disk from the floppy disk drive, then turn on the system.  
Insert the support CD to the optical drive.  
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 “P5BVMDA.ROM”. Completed.  
Start flashing...  
4.  
Restart the system after the utility completes the updating process.  
Recovering the BIOS from the USB flash disk  
To recover the BIOS from the USB flash disk:  
1.  
2.  
3.  
Insert the USB flash disk that contains BIOS file to the USB port.  
Turn on the system.  
The utility will automatically checks the devices for the BIOS file when found,  
the utility reads the BIOS file and starts flashing the corrupted BIOS file.  
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.  
ASUS P5B-VM DO  
2-7  
Only the USB flash disk with FAT 32/16 format and single partition can  
support ASUS CrashFree BIOS 3. The device size should be smaller than  
8GB.  
DO NOT shut down or reset the system while updating the BIOS! Doing so  
can cause system boot failure!  
2.1.5  
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.  
2.  
Place the support CD in the optical drive. The Drivers menu appears.  
Click the Utilities tab, then click Install ASUS Update. See page 3-4 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.  
2-8  
Chapter 2: 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 P5B-VM DO  
2-9  
4.  
5.  
From the FTP site, select the BIOS  
version that you wish to download.  
Click Next.  
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.  
2.  
Launch the ASUS Update utility from the Windows® desktop by clicking Start  
> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update  
main window appears.  
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.  
2-10  
Chapter 2: BIOS setup  
2.2  
BIOS setup program  
This motherboard supports a programmable firmware chip that you can update  
using the provided utility described in section “2.1 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 of the  
SPI chip.  
The firmware chip 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, reboot the system by doing any of the  
following procedures:  
• Restart using the OS standard shut-down procedure.  
• Press <Ctrl>+<Alt>+<Del> simultaneously.  
• Press the reset button on the system chassis.  
• Press the power button to turn the system off then back on.  
Using the power button, reset button, or the <Ctrl>+<Alt>+<Del> keys to  
force reset from a running operating system can cause damage to your data  
or system. We recommend to always shut-down the system properly from the  
operating system.  
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 for 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 “2.8 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 P5B-VM DO  
2-11  
2.2.1  
BIOS menu screen  
Menu items  
Menu bar  
Configuration fields  
General help  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
Use [ENTER], [TAB] or  
[SHIFT-TAB] to select  
a field.  
System Time  
[17:20:30]  
[Thu 05/22/2006]  
[1.44M, 3.5 in]  
System Date  
Legacy Diskette A  
Use [+] or [-] to  
configure system Time.  
SATA 1  
SATA 2  
SATA 3  
SATA 4  
SATA 5  
SATA 6  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
Select Screen  
Select Item  
Change Field  
Select Field  
General Help  
Save and Exit  
Exit  
+-  
Tab  
F1  
IDE Configuration  
System Information  
F10  
ESC  
v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.  
Sub-menu items  
Navigation keys  
2.2.2  
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  
Tools  
Exit  
For changing the system boot configuration  
For configuring options for special functions  
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.  
2.2.3  
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.  
2-12  
Chapter 2: BIOS setup  
2.2.4  
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.  
Use [ENTER], [TAB],  
or [SHIFT-TAB] to  
select a field.  
System Time  
System Date  
Legacy Diskette A  
[06:22:54]  
[Fri 05/04/2006]  
[1.44M, 3.5 in]  
SATA 1  
SATA 2  
SATA 3  
SATA 4  
SATA 5  
SATA 6  
[Not Detected]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
[Not Detected]  
Use [+] or [-] to  
configure system.  
The other items (Advanced, Power,  
Boot, Tool, and Exit) on the menu  
bar have their respective menu  
items.  
IDE Configuration  
System Information  
Main menu items  
2.2.5  
Sub-menu items  
A solid triangle before each item on any menu screen means that the iteam has a  
sub-menu. To display the sub-menu, select the item and press <Enter>.  
2.2.6  
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 “2.2.7 Pop-up window.”  
2.2.7  
Pop-up window  
Select a menu item then press <Enter> to display a pop-up window with the  
configuration options for that item.  
2.2.8  
Scroll bar  
A scroll bar appears on the right side 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.  
Pop-up window  
2.2.9  
General help  
At the top right corner of the menu screen  
is a brief description of the selected item.  
Scroll bar  
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2-13  
2.3  
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 “2.2.1 BIOS menu screen” for information on the menu screen  
items and how to navigate through them.  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
Use [ENTER], [TAB] or  
[SHIFT-TAB] to select  
a field.  
System Time  
[17:20:30]  
[Thu 05/22/2006]  
[1.44M, 3.5 in]  
System Date  
Legacy Diskette A  
Use [+] or [-] to  
configure system Time.  
SATA 1  
SATA 2  
SATA 3  
SATA 4  
SATA 5  
SATA 6  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
:[Not Detected]  
Select Screen  
Select Item  
Change Field  
Select Field  
General Help  
Save and Exit  
Exit  
+-  
Tab  
F1  
IDE Configuration  
System Information  
F10  
ESC  
v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.  
2.3.1  
System Time [xx:xx:xx]  
Allows you to set the system time.  
2.3.2  
System Date [Day xx/xx/xxxx]  
Allows you to set the system date.  
2.3.3  
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.]  
2-14  
Chapter 2: BIOS setup  
2.3.4  
SATA1-6  
While entering Setup, the BIOS automatically detects the presence of 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.  
SATA 1  
Device  
Select the type of  
device connected  
to the system.  
: Not Detected  
Type  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Auto]  
[Enabled]  
LBA/Large Mode  
Block(Multi-Sector Transfer) M  
PIO Mode  
DMA Mode  
Smart Monitoring  
32Bit Data Transfer  
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) M [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 P5B-VM DO  
2-15  
PIO Mode [Auto]  
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 [Enabled]  
Enables or disables 32-bit data transfer.  
Configuration options: [Disabled] [Enabled]  
2.3.5  
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  
Options  
SATA#1 Configuration  
Configure SATA#1 as  
[Enhanced]  
[IDE]  
Disabled  
Compatible  
Enhanced  
Hard Disk Write Protect  
IDE Detect Time Out (Sec)  
[Disabled]  
[35]  
SATA Configuration [Enhanced]  
Configuration options: [Disabled] [Compatible] [Enhanced]  
Configure SATA#1 As [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 increases storage performance on random workloads by allowing the  
drive to internally optimize the order of commands.  
If you want to create a RAID 0, RAID 1, RAID 5, RAID 10, or the Intel® Matrix  
Storage Technology configuration from the Serial ATA hard disk drives, set this item  
to [RAID].  
2-16  
Chapter 2: BIOS setup  
If you want to use the Serial ATA hard disk drives as Parallel ATA physical storage  
devices, keep the defaul setting [IDE].  
If you want the Serial ATA hard disk drives to use the Advanced Host Controller  
Interface (AHCI), set this item to [AHCI].  
Hard Disk Write Protect [Disabled]  
Allows you to enable to disable the hard disk write protection. This will be effective  
only if device is accessed through BIOS.  
Configuration options: [Disabled] [Enabled]  
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]  
2.3.6  
System Information  
This menu gives you an overview of the general system specifications. The BIOS  
automatically detects the items in this menu.  
AMIBIOS  
Version  
: 0017  
Build Date : 10/24/06  
Processor  
Type  
Speed  
Count  
: Genuine Intel(R) CPU 2.93GHz  
: 2933MHz  
: 1  
System Memory  
Usable Size: 240MB  
AMI BIOS  
Displays the auto-detected BIOS information  
Processor  
Displays the auto-detected CPU specification  
System Memory  
Displays the auto-detected system memory  
ASUS P5B-VM DO  
2-17  
2.4  
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 the system to malfunction.  
Adjust system  
frequency/voltage  
Jumperfree Configuration  
USB Configuration  
TPM Configuration  
CPU Configuration  
Chipset  
Onboard Devices Configuration  
PCIPnP  
2.4.1  
Jumperfree Configuration  
BIOS SETUP UTILITY  
Advanced  
Configure System Frequency/Voltage  
Select the target CPU  
frequency, and the  
relevant parameters  
will be auto-adjusted.  
Frequencies higher  
than CPU manufacturer  
recommends are not  
guaranteed to be  
AI Tuning  
[Standard]  
[Auto]  
DRAM Frequency  
stable. If the system  
becomes unstable,  
return to the default.  
AI Tuning [Standard]  
Allows selection of CPU frequency and auto adjustment of relevant parameters.  
Frequencies higher than CPU manufacturer recommends are not guaranteed to be  
stable. If the system becomes unstable, return to the default.  
Configuration options: [Manual] [Standard]  
The following items appear only when the AI Tuning item is set 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 400. Refer to the table below for  
the correct Front Side Bus and CPU External Frequency settings.  
2-18  
Chapter 2: BIOS setup  
FSB/CPU External Frequency Synchronization  
Front Side Bus  
FSB 1066  
FSB 800  
CPU External Frequency  
266 MHz  
200 MHz  
FSB 533  
133 MHz  
DRAM Frequency [Auto]  
Allows you to set the DDR2 operating frequency.  
Configuration options:  
Available DRAM frequency options in various FSB settings  
FSB  
Configuration options  
Auto  
DDR2-  
533  
DDR2-  
667  
DDR2-  
800  
DDR2-  
889*  
DDR2-  
1067*  
FSB 1066  
FSB 800  
* 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.  
Spread Spectrum [Auto]  
Allows you to enable or disable the clock generator spread spectrum.  
Configuration options: [Disabled] [Enabled] [Auto]  
CPU VCore Voltage [Auto]  
Allows selection of the CPU VCore voltage. The configuration options vary  
depending on the CPU installed. Setting to Auto allows the BIOS to detect the  
VCore voltage of the CPU installed.  
Configuration options: [1.6000V] [1.5875V] [1.5750V] [1.5625V] [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] [1.3625V] [1.3500V]  
[1.3375V] [1.3250V] [1.3125V] [1.3000V]  
Refer to the CPU documentation before setting the CPU VCore voltage. A very  
high Vcore voltage can severely damage the CPU!  
ASUS P5B-VM DO  
2-19  
2.4.2  
USB Configuration  
The items in this menu allow you to change the USB-related features. Select an  
item then press <Enter> to display the configuration options.  
USB Configuration  
Enables support for  
legacy USB. AUTO  
option disables  
legacy support if  
no USB devices are  
connected.  
Module Version - 2.24.0-11.4  
USB Devices Enabled:  
None  
Legacy USB Support  
Port 64/60 Emulation  
USB 2.0 Controller Mode  
BIOS EHCI Hand-Off  
[Auto]  
[Disabled]  
[HiSpeed]  
[Enabled]  
The Module Version and USB Devices Enabled items show the  
auto-detected values. If no USB device is detected, the item shows None.  
Legacy USB Support [Auto]  
Allows you to enable or disable support for USB devices on legacy operating  
systems (OS). 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]  
Port 64/60 Emulation [Disabled]  
Allows you to disable or enable the I/O port 60h/64h emulation support. This  
should be enabled for the complete USB keyboard legacy support for non-USB  
aware OSes. Configuration options: [Disabled] [Enabled]  
USB 2.0 Controller Mode [HiSpeed]  
Allows you to configure the USB 2.0 controller in HiSpeed (480 Mbps) or Full  
Speed (12 Mbps). Configuration options: [FullSpeed] [HiSpeed]  
BIOS EHCI Hand-Off [Enabled]  
Allows you to enable support for operating systems without an EHCI hand-off  
feature. Configuration options: [Disabled] [Enabled]  
2-20  
Chapter 2: BIOS setup  
2.4.3  
TPM Configuration  
The items in this menu allow you to set the TPM (Trusted Platform Module)  
features. Select an item then press <Enter> to display the configuration options.  
TPM Configuration  
Enable (Activate)/  
Disable (Deactivate)  
Command to TPM  
Execute TPM Command  
TPM Enable/Disable Status  
TPM Owner Status  
[Last setting]  
[No State]  
[No State]  
Execute TPM Command [Last setting]  
Allows you to enable or disable the TPM security chip.  
Configuration options: [Last setting] [Disabled] [Enabled]  
TPM Enable / Disable Status [No State]  
The item is not configurable.  
TPM Owner Status [No State]  
The item is not configurable.  
To enable the TPM function, set the Execute TPM Command item to [Enabled]  
and then save the change (see “2.8 Exit menu” for details). After the system  
reboots, the TPM Configuration menu will change into the following one.  
TPM Configuration  
Enable (Activate)/  
Disable (Deactivate)  
Command to TPM  
Execute TPM Command  
TPM Enable/Disable Status  
Clearing the TPM  
[Last setting]  
[Enabled]  
[Press Enter]  
[UnOwned]  
TPM Owner Status  
Clearing the TPM [Press Enter]  
Allows you to clear the user information saved in the TPM security chip.  
When you press <Enter>, a warning message will appear to ask if you want  
to clear the user information in the security chip. Use the left/right arrow key  
to select between [Ok] and [Cancel], then press <Enter> to confirm your  
choice.  
After you select [OK] to execute the Clearing the TPM function, the data saved  
in the TPM security chip will be cleared and can never be restored.  
ASUS P5B-VM DO  
2-21  
2.4.4  
CPU Configuration  
The items in this menu show the CPU-related information that the BIOS  
automatically detects.  
BIOS SETUP UTILITY  
Advanced  
Configure advanced CPU settings  
Module Version: 3D.04  
Options  
Auto  
Manual  
Manufacturer: Intel  
Brand String: Genuine Intel(R) CPU 2.93GHz  
Frequency  
FSB Speed  
Cache L1  
Cache L2  
: 2.93GHz  
: 533MHz  
: 16 KB  
: 256 KB  
Ratio Status: Unlocked (Max:22, Min:14)  
Ratio Actual Value: 22  
CPUID :F41  
CPU ratio adjustment  
CIE Support  
[Auto]  
[Enabled]  
[Enabled]  
[Enabled]  
[Disabled]  
[Enabled]  
[Enabled]  
[Enabled]  
[Disabled]  
[Enabled]  
[Disabled]  
[Enabled]  
Hardware Prefetcher:  
Adjacent Cache Line Prefetch:  
Max CPUID Value Limit:  
Vanderpool Technology  
CPU TM function  
Select Screen  
Select Item  
Change Option  
General Help  
Save and Exit  
Exit  
+-  
Execute Disable Bit  
Single Logical Processor Mode  
Hyper-Threading Technology  
PECI  
F1  
F10  
ESC  
Core Multi-Processing  
v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.  
CPU ratio adjustment [Auto]  
Configuration options: [Auto] [Manual]  
The following item appears when the item CPU ratio adjustment is set to  
[Manual].  
Ratio CMOS Setting: [xx]  
Sets the ratio between CPU Core Clock and the FSB Frequency.  
C1E Support [Enabled]  
Allows you to enable or disable C1E Support.  
Configuration options: [Enabled] [Disabled]  
Hardware Prefetcher: [Enabled]  
Allows you to enable or disable the Hardware Prefetcher Disable Feature.  
Configuration options: [Disabled] [Enabled]  
Adjacent Cache Line Prefetch: [Enabled]  
Allows you to enable or disable the Adjacent Cache Line Prefetch Disable Feature.  
Configuration options: [Disabled] [Enabled]  
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]  
2-22  
Chapter 2: BIOS setup  
Vanderpool Technology [Enabled]  
Configuration options: [Enabled] [Disabled]  
CPU TM function [Enabled]  
Configuration options: [Disabled] [Enabled]  
Execute Disable Bit [Enabled]  
Allows you to enable or disable the No-Execution Page Protection Technology.  
Setting this item to [Disabled] forces the XD feature flag to always return to zero  
(0). Configuration options: [Disabled] [Enabled]  
Single Logical Processor Mode: [Disabled]  
Configuration options: [Disabled] [Enabled]  
Hyper-Threading Technology [Enabled]  
Allows you to enable or disable the processor Hyper-Threading Technology.  
Configuration options: [Disabled] [Enabled]  
PECI [Disabled]  
Configuration options: [Disabled] [Enabled]  
Core Multi-Processing [Enabled]  
Configuration options: [Disabled] [Enabled]  
ASUS P5B-VM DO  
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2.4.5  
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  
Configure North Bridge  
features.  
WARNING: Setting wrong values in below sections  
may cause the system to malfunction.  
NorthBridge Configuration  
vPro Technology Configuration  
North Bridge Configuration  
North Bridge Chipset Configuration  
ENABLED: Allow  
remapping of  
Memory Remap Feature  
[Enabled]  
overlapped PCI memory  
above the total  
physical memory.  
PCI MMIO Allocation: 4GB To 3584MB  
DRAM Frequency  
Configure DRAM Timing by SPD  
Memory Hole  
[Auto]  
[Enabled]  
[Disabled]  
DISABLED: Do not allow  
remapping of memory  
Initiate Graphic Adapter  
Internal Graphic Mode Select  
[PEG/PCI]  
[Enabled, 8MB]  
Video Function Configuration  
Memory Remap Feature [Enabled]  
Allows you to enable or disable the remapping of the overlapped PCI memory  
above the total physical memory. Enable this option only when you install 64-bit  
operating system. Configuration options: [Disabled] [Enabled]  
DRAM Frequency [Auto]  
Allows you to set the DDR operating frequency.  
Configuration options: [Auto] [533MHz] [667MHz] [800MHz] [1067MHz]  
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 set to [Disabled].  
Configuration options: [Enabled] [Disabled]  
DRAM CAS# Latency [5]  
Controls the latency between the SDRAM read command and the time the  
data actually becomes available. Configuration options: [3] [4] [5] [6]  
2-24  
Chapter 2: BIOS setup  
DRAM RAS# to CAS# Delay [6 DRAM Clocks]  
Controls the latency between the DDR SDRAM active command and the  
read/write command.  
Configuration options: [3 DRAM Clocks]~[6 DRAM Clocks]  
DRAM RAS# Precharge [6DRAM Clocks]  
Controls the idle clocks after issuing a precharge command to the DDR  
SDRAM. Configuration options: [3 DRAM Clocks]~[6 DRAM Clocks]  
DRAM RAS# Activate to Precharge Delay [15 DRAM Clocks]  
Configuration options: [9 DRAM Clocks]~[15 DRAM Clocks]  
Memory Hole [Disabled]  
Configuration options: [Disabled] [15MB-16MB]  
Initiate Graphic Adapter [PEG/PCI]  
Allows you to select the graphics controller as the primary boot device.  
Configuration options: [IGD] [PCI/IGD] [PCI/PEG] [PEG/IGD] [PEG/PCI]  
Internal Graphic Mode Select [Enabled, 8MB]  
Allows you to select the amount of system memory used by the Internal graphics  
device. Configuration options: [Disabled] [Enabled,1MB] [Enabled, 8MB]  
Video Function Configuration  
Options  
Fixed Mode  
Video Function Configuration  
DVMT Mode Select  
DVMT/FIXED Memory  
[DVMT Mode]  
[128MB]  
DVMT Mode  
DVMT Mode Select [DVMT Mode]  
Configuration options: [Fixed Mode] [DVMT Mode]  
DVMT/FIXED Memory [128MB]  
Configuration options: [128MB] [256MB] [Maximum DVMT]  
ASUS P5B-VM DO  
2-25  
vPro Technology Configuration  
With the support of the Intel® vProTechnology, the items in this menu allow you  
to configure the Intel® Management Engine (ME) subsystem and enable the Intel®  
Active Management Technology. Select an item then press <Enter> to display the  
configuration options.  
To enable the following functions, you must install the Intel® Management  
Engine Interface. See page 3-3 for details.  
vPro Technology Configuration  
ASF Support  
Options  
Disabled  
[Disabled]  
[Disabled]  
Enabled  
ME HECI Configuration  
ME-HECI  
Configure Intel AMT Parameters  
Intel AMT Support  
[Disabled]  
When the Intel AMT Support item is set to [Enabled], the vPro Technology  
Configuration menu will change into the following one.  
vPro Technology Configuration  
Options  
Disabled  
ASF Support  
[Disabled]  
Enabled  
ME HECI Configuration  
ME-HECI  
ME-IDER  
ME-KT  
[Enabled]  
[Disabled]  
[Disabled]  
Configure Intel AMT Parameters  
Intel AMT Support  
Force SOL  
[Enabled]  
[Disabled]  
ASF Support [Disabled]  
Allows you to enable or disable the Alert Standard Format (ASF).  
Configuration options: [Disabled] [Enabled]  
ME HECI Configuration  
ME-HECI [Enabled]  
When set to [Enabled], Host Embedded Communication Interface (HECI)  
provides an interface for the exchange of message between the host  
software and the ME firmware. Configuration options: [Disabled] [Enabled]  
ME-IDER [Disabled]  
Allows you to enable or disable the IDE Redirection interface by which  
the remote management console is able to direct the client PC to boot.  
Configuration options: [Disabled] [Enabled]  
2-26  
Chapter 2: BIOS setup  
ME-KT [Disabled]  
When set to [Enabled], the KT function helps redirect keyboard and POST  
message to the remote management console and thus facilitates the control  
of the client machine through the network.  
Configuration options: [Disabled] [Enabled]  
Configure Intel AMT Parameters  
Intel AMT Support [Enabled]  
Allows you to enable or disable the Intel® AMT (Active Management  
Technology). Configuration options: [Disabled] [Enabled]  
Force SOL [Disabled]  
When set to enabled, Serial Over LAN (SOL) capability allows you to remotely enter  
the client PC via LAN. Configuration options: [Disabled] [Enabled]  
The Intel® Active Management Technology requires the Intel® AMT-enabled  
software. Also, the platform must be connected to a power source and an active  
LAN port.  
2.4.6  
Onboard Devices Configuration  
Configure Win627EHF Super IO Chipset  
Enable or Diable  
High Definition Audio  
Controller  
HD Audio Controller  
[Enabled]  
[HD Audio]  
[Enabled]  
[Enabled]  
[Disabled]  
[Enabled]  
[BASIC]  
Front Panel Support Type  
Onboard 1394 Controller  
Onboard LAN  
LAN Option ROM  
JMicron SATA/PATA Controller  
JMicron Controller Mode  
Serial Port1 Address  
Parallel Port Address  
Parallel Port Mode  
ECP Mode DMA Channel  
Parallel Port IRQ  
[3F8/IRQ4]  
[378]  
[ECP]  
[DMA3]  
[IRQ7]  
HD Audio Controller [Enabled]  
Allows you to enable or disable the High Definition Audio Controller.  
Configuration options: [Enabled] [Disabled]  
Front Panel Support Type [HD Audio]  
Allows you to set the front panel audio connector (AAFP) mode to legacy  
AC’97 or high-definition audio depending on the audio standard that the front  
panel audio module supports. Configuration options: [AC97] [HD Audio]  
ASUS P5B-VM DO  
2-27  
Onboard 1394 Cotroller [Enabled]  
Allows you to enable or disable the onboard IEEE 1394 controller.  
Configuration options: [Enabled] [Disabled]  
Onboard LAN [Enabled]  
Allows you to enable or disable the onboard LAN controller.  
Configuration options: [Enabled] [Disabled]  
LAN Option ROM [Disabled]  
Configuration options: [Disabled] [Enabled]  
JMicron SATA/PATA Controller [Enabled]  
Allows you to enable or disable the JMicron SATA/PATA controller.  
Configuration options: [Enabled] [Disabled]  
JMicron Controller Mode [Basic]  
Configuration options: [RAID] [BASIC] [AHCI]  
Must load the JMB363 driver when creating RAID sets, even if all the drivers of  
the RAID sets are used as data drivers.  
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]  
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]  
2-28  
Chapter 2: BIOS setup  
2.4.7  
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  
configure all the  
WARNING: Setting wrong values in below sections  
may cause system to malfunction.  
devices in the system.  
YES: lets the operating  
system configure Plug  
and Play (PnP) devices  
not required for boot  
if your system has a  
Plug and Play operating  
system.  
Plug And Play O/S  
PCI Latency Timer  
Allocate IRQ to PCI VGA  
Palette Snooping  
[No]  
[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]  
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]  
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: [Yes] [No]  
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]  
ASUS P5B-VM DO  
2-29  
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]  
2.5  
Power menu  
The Power menu items allow you to change the settings for the Advanced  
Power Management (APM). Select an item then press <Enter> to display the  
configuration options.  
Select the ACPI state  
used for System  
Suspend.  
Suspend Mode  
[Auto]  
Repost Video on S3 Resume  
ACPI 2.0 Support  
ACPI APIC support  
[No]  
[ACPI v1.0]  
[Enabled]  
APM Configuration  
Hardware Monitor  
2.5.1  
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]  
2.5.2  
Repost Video on S3 Resume [No]  
Allows you to determines whether to invoke VGA BIOS POST on S3/STR resume.  
Configuration options: [No] [Yes]  
2.5.3  
ACPI 2.0 Support [ACPI v1.0]  
Allows you to add more tables for Advanced Configuration and Power Interface  
(ACPI) 2.0 specifications.  
Configuration options: [ACPI v1.0] [ACPI v2.0] [ACPI v3.0]  
2.5.4  
ACPI APIC support [Enabled]  
Allows you to enable or disable the Advanced Configuration and Power Interface  
(ACPI) support in the Application-Specific Integrated Circuit (ASIC). When set  
to Enabled, the ACPI APIC table pointer is included in the RSDT pointer list.  
Configuration options: [Disabled] [Enabled]  
2-30  
Chapter 2: BIOS setup  
2.5.5  
APM Configuration  
APM Configuration  
<Enter> to select  
whether or not to  
restart the system  
after AC power loss.  
Restore on AC Power Loss  
Power On By RTC Alarm  
[Power Off]  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
[Disabled]  
Power On By External Modems  
Power On By PCI Devices  
Power On By Onboard Lan  
Power On By PCIE Devices  
Power On By PS/2 Keyboard  
Power On By PS/2 Mouse  
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. When this item is  
set to [Enabled], the items RTC Alarm Date / RTC Alarm Hour / RTC Alarm Minute  
/ RTC Alarm Second will become user-configurable with set values.  
Configuration options: [Disabled] [Enabled]  
Power On By External Modems [Disabled]  
This allows either settings 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]  
Allows you to enable or disable the PME to wake up from S5 by PCI devices.  
Configuration options: [Disabled] [Enabled]  
Power On By Onboard LAN [Disabled]  
Allows you to enable or disable the onboard LAN to generate a wake event.  
Configuration options: [Disabled] [Enabled]  
ASUS P5B-VM DO  
2-31  
Power On By PCIE Devices [Disabled]  
Allows you to enable or disable the PCIE devices to generate a wake event.  
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]  
2.5.6  
Hardware Monitor  
Hardware Monitor  
CPU Temperature  
CPU Temperature  
MB Temperature  
[51ºC/123.5ºF]  
[36ºC/96.5ºF]  
CPU Fan Speed  
[2373RPM]  
[N/A]  
Chasis Fan Speed  
Chasis Fan 2 Speed  
Power Fan Speed  
[N/A]  
[N/A]  
VCORE Voltage  
3.3V Voltage  
5V Voltage  
[ 1.288V]  
[ 2.752V]  
[ 4.428V]  
[11.352V]  
12V Voltage  
ASUS Advanced Q-Fan Control  
Fan Profile  
[Silent]  
CPU Temperature [xxxºC/xxxºF]  
MB Temperature [xxxºC/xxxºF]  
The onboard hardware monitor automatically detects and displays the motherboard  
and CPU temperatures. Select [Ignored] if you do not wish to display the detected  
temperatures.  
CPU Fan Speed [xxxxRPM] or [Ignored] / [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.  
Chasis Fan/ Fan 2 Speed [xxxxRPM] or [Ignored] / [N/A]  
The onboard hardware monitor automatically detects and displays the chasis  
fan speed in rotations per minute (RPM). If the fan is not connected to the  
motherboard, the field shows N/A.  
2-32  
Chapter 2: BIOS setup  
Power Fan Speed [xxxxRPM] or [Ignored] / [N/A]  
The onboard hardware monitor automatically detects and displays the chasis  
fan speed in rotations per minute (RPM). If the fan is not connected to the  
motherboard, the 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. Select [Ignored] if you do not wish to display these  
items.  
ASUS Advanced Q-Fan Control [Silent]  
Allows you to select the ASUS Advanced Q-Fan control.  
Configuration options: [Disabled] [Performance] [Optimal] [Silent] [Ultra Silent]  
The option of “Ultra Silent” is for Intel® Core™2 processors only.  
2.6  
Boot menu  
The Boot menu items allow you to change the system boot options. Select an item  
then press <Enter> to display the sub-menu.  
BIOS SETUP UTILITY  
Main  
Boot Settings  
Boot Device Priority  
Advanced  
Power  
Boot  
Tools  
Exit  
Specifies the Boot  
Device Boot Priority  
sequence.  
A virtual floppy disk  
drive (Floppy Drive  
B:) may appear when  
you set the CD-ROM  
drive as the first boot  
device.  
Boot Settings Configuration  
Security  
2.6.1  
Boot Device Priority  
BIOS SETUP UTILITY  
Boot  
Boot Device Priority  
Specifies the boot  
sequence from the  
availabe devices.  
1st Boot Device  
2nd Boot Device  
3rd Boot Device  
[1st FLOPPY DRIVE]  
[Hard Drive]  
[ATAPI CD-ROM]  
A device enclosed  
in parenthesis has  
been disabled in the  
corresponding menu.  
1st ~ xxth Boot Device [xxx 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: [xxx Drive] [Disabled]  
ASUS P5B-VM DO  
2-33  
2.6.2  
Boot Settings Configuration  
BIOS SETUP UTILITY  
Boot  
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 power on self tests (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]  
This 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]  
Interrupt 19 Capture [Disabled]  
When set to [Enabled], this function allows the option ROMs to trap Interrupt 19.  
Configuration options: [Disabled] [Enabled]  
2-34  
Chapter 2: BIOS setup  
2.6.3  
Security  
The Security menu items allow you to change the system security settings. Select  
an item then press <Enter> to display the configuration options.  
BIOS SETUP UTILITY  
Boot  
Security Settings  
<Enter> to change  
password.  
<Enter> again to  
disabled password.  
Supervisor Password  
User Password  
: Not Installed  
: Not Installed  
Change Supervisor Password  
Change User Passward  
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.  
2.  
Select the Change Supervisor Password item and press <Enter>.  
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 clear it by erasing the CMOS  
Real Time Clock (RTC) RAM. See section “1.9 Jumpers” for information on how  
to erase the RTC RAM.  
ASUS P5B-VM DO  
2-35  
After you have set a supervisor password, the other items appear to allow you to  
change other security settings.  
BIOS SETUP UTILITY  
Boot  
Security Settings  
<Enter> to change  
password.  
<Enter> again to  
disabled password.  
Supervisor Password  
User Password  
: Not Installed  
: Not Installed  
Change Supervisor Password  
User Access Level  
Change User Password  
Clear User Password  
Password Check  
[Full Access]  
[Setup]  
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.  
2.  
Select the Change User Password item and press <Enter>.  
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.  
Clear User Password  
Select this item to clear the user password.  
2-36  
Chapter 2: BIOS setup  
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]  
2.7  
Tools menu  
The Tools menu items allow you to configure options for special functions. Select  
an item then press <Enter> to display the sub-menu.  
ASUS EZ Flash 2  
Press ENTER to run  
the utility to select  
and update BIOS.  
This utility doesn't  
support  
:
1.NTFS format  
2.7.1  
ASUS EZ Flash 2  
Allows you to run ASUS EZ Flash 2. When you press <Enter>, a confirmation  
message appears. Use the left/right arrow key to select between [Yes] or [No],  
then press <Enter> to confirm your choice. Please see page 2-3, section 2.1.2 for  
details.  
ASUSTek EZ Flash 2 BIOS ROM Utility V3.00  
FLASH TYPE: SST 25VF016  
Current ROM  
BOARD: P5B-VM-DO  
VER: 0017  
Update ROM  
BOARD: Unknown  
VER: Unknown  
DATE: 10/24/06  
DATE: Unknown  
PATH: A:\  
A:  
Note  
[Enter] Select or Load  
[Tab] Switch  
[B] Backup  
[Up/Down/Home/End] Move  
[ESC] Exit  
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2-37  
2.8  
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.  
BIOS SETUP UTILITY  
Main  
Advanced  
Power  
Boot  
Tools  
Exit  
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  
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 are 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 PC is turned  
off. When you select this option, a confirmation window appears. Select OK to save  
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.  
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  
This option 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  
This option 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 default values. Select Exit & Save Changes  
or make other changes before saving the values to the non-volatile RAM.  
2-38  
Chapter 2: BIOS setup  
This chapter describes the contents  
of the support CD that comes with the  
motherboard package.  
Software  
3
support  
ASUS P5B-VM DO  
3-1  
3.1  
Installing an operating system  
This motherboard supports Windows® 2000/XP/64-bit 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 Pack2 or later versions before installing the drivers for better  
compatibility and system stability.  
3.2  
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.  
3.2.1  
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.  
3-2  
Chapter 3: Software support  
3.2.2  
Drivers menu  
The drivers menu shows the available device drivers if the system detects installed  
devices. Install the necessary drivers to activate the devices.  
ASUS InstAll-Drivers Installation Wizard  
Installs the ASUS InstAll-Drivers installation wizard.  
Intel Chipset Inf Update Program  
Installs the Intel® chipset inf update program.  
Intel Graphics Accelerator Driver  
Installs the Intel® graphics accelerator driver.  
SoundMAX AD1988A Audio Driver  
Installs the SoundMAX® AD1988A audio driver and application.  
JMicron JMB36X RAID Controller Driver  
Installs the JMicron® JMB36X Serial ATA RAID controller driver.  
Intel(R) Ethernet Driver  
Installs the Intel® ethernet driver.  
Intel(R) Management Engine Interface  
Installs the Intel® management engine interface.  
USB 2.0 Driver  
Installs the USB 2.0 driver.  
ASUS P5B-VM DO  
3-3  
3.2.3  
Utilities menu  
The Utilities menu shows the applications and other software that the motherboard  
supports.  
ASUS InstAll-Installation Wizard for Utilities  
Install the ASUS InstAll-Installation Wizard.  
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  
The ASUS Update utility allows you to update the motherboard BIOS in Windows®  
environment. This utility requires an Internet connection either through a network  
or an Internet Service Provider (ISP)  
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.  
Anti-Virus Utility  
The anti-virus application scans, identifies, and removes computer viruses. View  
the online help for detailed information.  
3-4  
Chapter 3: Software support  
3.2.4  
Make Disk menu  
The Make Disk menu contains items to create JMicron® JMB36X or Intel® ICH8  
RAID/AHCI driver disk.  
Make JMicron JMB36X 32/64bit RAID/AHCI Driver  
Allows you to create a JMicron® JMB36X 32/64bit RAID/AHCI driver.  
Make Intel® ICH8 32/64bit RAID/AHCI Driver  
Allows you to create a Intel® ICH8 32/64bit RAID/AHCI driver disk.  
ASUS P5B-VM DO  
3-5  
3.2.5  
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). Download the  
Adobe® Acrobat® Reader from www.adobe.com if you do not have one.  
3.2.6  
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.  
3-6  
Chapter 3: Software support  
3.2.7  
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.  
Browse this CD  
Displays the support CD contents in graphical format.  
ASUS P5B-VM DO  
3-7  
Technical support form  
Displays the ASUS Technical Support Request Form that you have to fill out when  
requesting technical support.  
Filelist  
Displays the contents of the support CD and a brief description of each in text  
format.  
3-8  
Chapter 3: Software support  

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