Asus F1A55 M LE R2 0 User Manual

F1A55-M LE R2.0  
Contents  
iii  
iv  
v
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 adapter or extension cord. These devices  
could interrupt the grounding circuit.  
Ensure 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, ensure 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.  
vi  
 
About this guide  
This user guide contains the information you need when installing and configuring the  
motherboard.  
How this guide is organized  
This guide contains the following parts:  
Chapter 1: Product introduction  
This chapter describes the features of the motherboard and the new technology it  
supports. It includes description of the switches, 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.  
Where to find more information  
Refer to the following sources for additional information and for product and software  
updates.  
1.  
2.  
ASUS websites  
The ASUS website provides updated information on ASUS hardware and software  
products. Refer to the ASUS contact information.  
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.  
Conventions used in this guide  
To ensure 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.  
vii  
 
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 (+).  
viii  
F1A55-M LE R2.0 specifications summary  
APU  
AMD® A- & E2- series accelerated processors with AMD® Radeon™ HD  
6000 series graphics, up to 4 CPU cores, FM1 package  
DirectX® 11 support  
AMD® Turbo Core Technology 2.0 support  
The AMD® Turbo Core Technology 2.0 support depends on the APU types.  
Chipset  
Memory  
AMD® A55 FCH (Hudson D2)  
Dual-channel memory architecture  
2 x 240-pin DIMM slots support maximum 32GB unbuffered non- ECC  
DDR3 2250(O.C.) / 2000(O.C) / 1866(O.C) /1600/ 1333/ 1066 MHz  
memory modules  
The maximum 32GB memory capacity can be supported with 16GB or above  
DIMMs. ASUS will update the memory QVL once the DIMMs are available in the  
market.  
When you install a total memory of 4GB capacity or more, Windows® 32-bit  
operating system may only recognize less than 3GB. We recommend a  
maximum of 3GB system memory if you are using a Windows® 32-bit operating  
system.  
Graphics  
Integrated AMD® Radeon™ HD 6000 series graphics in the Liano APU  
Dual independent displays support: DVI and D-Sub  
Supports DVI with max. resolution up to 1920 x 1200 @60Hz  
Supports D-Sub with max. resolution up to 1920 x 1600 @60Hz  
Supports Microsoft® DirectX 11  
Supports AMD® Dual Graphics technology  
Multi-GPU support  
Expansion slots  
Supports LucidLogix Virtu MVP Technology  
LucidLogix Virtu MVP supports Windows® 7 operating system.  
2 x PCIe 2.0 x16 slots with ATI® CrossFireX™ support (blue @x16 mode,  
black @x4 mode)  
1 x PCIe 2.0 x1 slot  
1 x PCI slot  
AMD® A55 FCH southbridge  
Storage  
-
6 x Serial ATA 3.0Gb/s connectors support RAID 0, RAID 1, RAID 10,  
and JBOD configurations  
Realtek® 8111E/F Gigabit LAN controller  
LAN  
Audio  
Realtek ALC887 3-jack 8-channel High Definition Audio CODEC  
-
Supports jack-detection,multi-streaming, and front panel jack retasking  
AMD® A55 FCH southbridge  
USB  
-
12 x USB 2.0/1.1 ports (6 ports at the mid-board, 6 ports at the back  
panel)  
ASUS unique  
features  
100% All High-Quality conductive polymer capacitors  
ASUS Hybrid DIGI+VRM  
-
4+2 Phase Power Design  
ASUS Unique Technology  
-
-
TurboV  
EPU  
(continued on the next page)  
ix  
 
F1A55-M LE R2.0 specifications summary  
ASUS unique features  
ASUS Exclusive Features  
-
-
-
-
-
Network iControl  
AI Suite II  
AI Charger  
Anti-Surge Protection  
ASUS UEFI BIOS EZ Mode  
ASUS Quiet Thermal Solution  
-
-
ASUS Fanless Design: Stylish heatsink solution  
ASUS Fan Xpert  
ASUS EZ DIY  
-
-
-
ASUS CrashFree BIOS 3  
ASUS EZ Flash 2  
ASUS My Logo 2  
ASUS Exclusive  
overclocking features  
SFS (Stepless Frequency Selection)  
-
PCIe frequency tuning from 100MHz up to 200MHz at 1MHz  
increment  
Overclocking Protection  
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 DVI-D output port  
1 x D-Sub output port  
1 x LAN (RJ-45) port  
6 x USB 2.0/1.1 ports  
8-channel Audio jacks  
Internal I/O  
connectors  
3 x USB 2.0 connectors support additional 6 USB 2.0 ports  
1 x S/PDIF output connector  
1 x High-definition front panel audio connector  
6 x SATA 3.0Gb/s connectors  
1 x LPT connector  
1 x COM connector  
1 x Front panel connector  
1 x Internal speaker connector  
1 x CPU fan connector  
1 x Chassis fan connector  
1 x Power fan connector  
1 x 24-pin EATX power connector  
1 x 4-pin ATX 12V power connector  
(continued on the next page)  
x
F1A55-M LE R2.0 specifications summary  
BIOS features  
Accessories  
64Mb Flash ROM, UEFI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI 2.0a, SM  
BIOS 2.6  
2 x Serial ATA 3.0Gb/s cables  
1 x I/O shield  
1 x User Manual  
1 x Support DVD  
Drivers  
Support DVD  
Form factor  
ASUS PC Probe II  
ASUS Update  
Anti-Virus software (OEM version)  
uATX form factor: 9.6 in x 9.0 in (24.4 cm x 22.9 cm)  
Specifications are subject to change without notice.  
xi  
Package contents  
Check your motherboard package for the following items.  
F1A55-M LE R2.0  
ASUS F1A55-M LE R2.0 motherboard  
2 x Serial ATA 3.0 Gb/s cables  
User Manual  
1 x I/O-Shield  
User Guide  
Support DVD  
If any of the above items is damaged or missing, contact your retailer.  
The illustrated items above are for reference only. Actual product specifications may  
vary with different models.  
xii  
 
Product introduction  
1
1.1  
Special features  
Product highlights  
1.1.1  
AMD® A- & E2- series accelerated processors with AMD® Radeon™ HD 6000  
series graphics  
This motherboard supports AMD® A- & E2- series accelerated processor with AMD®  
Radeon™ HD 6000 series graphics. This revolutionary APU (Accelerated Processing Unit)  
combines processing power and advanced DirectX 11 graphics in one small, energy-efficient  
design to enable accelerated performance and an industry-leading visual experience. It  
features Dual-channel DDR3 memory support and accelerates data transfer rate up to 5GT/s.  
AMD® A55 (Hudson D2) FCH Chipset  
AMD® A55 FCH (Hudson D2) is designed to support up to 5GT/s interface and PCI Express  
2.0 x 16 (at x4 speed) graphics.  
ATI® CrossFireX™ Technology  
ATI’s CrossFireX™ boosts image quality along with rendering speed, eliminating the  
need to scale down screen resolution to get high quality images. CrossFireX™ allows  
higher antialiasing, anisotropic filtering, shading, and texture settings. Adjust your display  
configurations, experiment with the advanced 3D settings, and check the effects with a real-  
time 3D-rendered previews within ATI Catalyst™ Control Center.  
1.1.2  
ASUS Hybrid DIGI+ VRM  
Hybrid DIGI+VRM, a unique ASUS-exclusive design on ASUS motherboards with the AMD  
A55 chipset, creates an all-around platform for a diverse range of applications, including  
gaming, multimedia, and productivity. It allows APU voltage and VRM frequency adjustments  
via preset modes and user-defined profiles. It also offers a broad range of adjustable power  
options to create more headroom for flexible system tuning.  
* Hybrid DIGI+ VRM functions are also available in FM1 socket compatible CPUs.  
EPU  
EPU (Energy Processing Unit), the world’s first real-time system power-saving chip,  
automatically detects the current system load and intelligently moderates power usage. It  
offers a system-wide energy optimization, reduces fan noise, and extends the component’s  
lifespan.  
1-1  
ASUS F1A55-M LE R2.0  
 
1.1.3  
ASUS Exclusive features  
Network iControl  
Network iControl is an intuitive one-step network control center that makes it easier for you to  
manage your bandwidth and allows you to set, monitor, and schedule the bandwidth priorities  
for your network programs. It allows you to automatically connect to a PPPoE network for a  
more convenient online experience.  
100% All High-quality Conductive Polymer Capacitors  
This motherboard uses all high-quality conductive polymer capacitors for durability, improved  
lifespan, and enhanced thermal capacity.  
Ai Charger  
Ai Charger is ASUS fast-charging software that supports iPod, iPhone, and iPad.  
Check your USB mobile device if it fully supports the BC 1.1 function.  
The actual charging speed may vary with your USB device’s conditions.  
ASUS UEFI BIOS (EZ Mode)  
ASUS UEFI BIOS, a UEFI compliant architecture, offers the first mouse-controlled intuitive  
graphical BIOS interface that goes beyond the traditional keyboard-only BIOS controls,  
providing you with more flexibility, convenience, and easy to navigate UEFI BIOS than the  
traditional BIOS versions. It offers you with dual selectable modes and native support for hard  
drives larger than 2.2 TB.  
ASUS UEFI BIOS includes the following new features:  
F12 BIOS snapshot hotkey  
F3 Shortcut for most accessed information  
ASUS DRAM SPD (Serial Presence Detect) information detecting faulty DIMMs, and  
helping with difficult POST situations.  
ASUS TurboV  
With its user-friendly interface, ASUS TurboV offers you the adrenaline rush of real-time  
overclocking without exiting or rebooting the OS. It also provides you with the ASUS OC  
profiles for the best overclocking settings in different scenarios.  
ASUS Anti-Surge Protection  
This special design protects expensive devices and the motherboard from damage caused  
by power surges from switching power supply unit (PSU).  
AI Suite II  
With its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to  
launch and operate these utilities simultaneously. It allows you to configure the overclocking  
settings, adjust the frequencies and related voltages, remotely control the system via a  
mobile device, and other easy-to-use helpful utilities.  
1-2  
Chapter 1: Product introduction  
 
Fan Xpert  
ASUS Fan Xpert intelligently allows you to adjust the CPU and chassis fan speeds based on  
different ambient temperatures, resulting to a quiet and cool computing environment.  
ASUS EZ Flash 2  
ASUS EZ Flash 2 is a user-friendly utility that allows you to update the BIOS without using a  
bootable floppy disk or an OS-based utility.  
ASUS MyLogo 2™  
Turn your favorite photos into 256-color boot logos to personalize your system.  
ASUS CrashFree BIOS 3  
ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to restore a corrupted BIOS  
file using the bundled support DVD or a USB flash disk that contains the BIOS file.  
C.P.R. (CPU Parameter Recall)  
The BIOS C.P.R. feature automatically restores the CPU default settings when the system  
hangs due to overclocking failure. 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 parameters to their default settings.  
ErP ready  
The motherboard is European Union´s Energy-related Products (ErP) ready, and ErP  
requires products to meet certain energy efficiency requirements in regards to energy  
consumptions. This is in line with ASUS vision of creating environment-friendly and energy-  
efficient products through product design and innovation to reduce carbon footprint of the  
product and thus mitigate environmental impacts.  
1-3  
ASUS F1A55-M LE R2.0  
1.2  
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.  
Before handling components, use a grounded wrist strap or touch a safely grounded  
object or a metal object, such as the power supply case, to avoid damaging them due  
to static electricity.  
Hold components by the edges to avoid touching the ICs on them.  
Whenever you uninstall any component, place it on a grounded antistatic pad or in the  
bag that came with the component.  
Before you install or remove any component, ensure that the ATX power supply is  
switched off or the power cord is detached from the power supply. Failure to do so  
may cause severe damage to the motherboard, peripherals, or components.  
Standby Power 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  
F1A55-M LE R2.0  
ON  
OFF  
Standby Power Powered Off  
F1A55-M LE R2.0 Onboard LED  
1-4  
Chapter 1: Product introduction  
 
1.3  
Motherboard overview  
Before you install the motherboard, study the configuration of your chassis to ensure that the  
motherboard fits into it.  
Ensure that you unplug the power cord before installing or removing the motherboard.  
Failure to do so can cause you physical injury and damage motherboard components.  
1.3.1  
Placement direction  
When installing the motherboard, ensure 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.  
1.3.2  
Screw holes  
Place six 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  
F1A55-M LE R2.0  
1-5  
ASUS F1A55-M LE R2.0  
 
1.3.3  
Motherboard layout  
1
2
3
2
4
22.9cm(9.0in)  
PWR_FAN  
KBMS  
CPU_FAN  
EPU  
ATX12V  
USB34  
1
USB3_12  
CHA_FAN  
LAN1_USB12  
SATA6G_6  
SATA6G_5  
5
Lithium Cell  
CMOS Power  
AUDIO  
PCIEX16_1  
6
7
RTL  
8111E  
F1A55-M LE R2.0  
SB_PWR  
PCIEX1_1  
CLRTC  
PCI1  
AMD®  
A55  
SATA6G_4  
Super  
I/O  
COM1  
SATA6G_3  
SATA6G_2  
SATA6G_1  
5
PCIEX16_2  
64Mb  
BIOS  
ALC887  
AAFP  
SPDIF_OUT  
SPEAKER  
F_PANEL  
USB910 USB78 USB56  
LPT  
14  
13  
12  
11  
10  
9
8
1-6  
Chapter 1: Product introduction  
 
1.3.4  
Layout contents  
Connectors/Jumpers/Slots/LED  
Page  
1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)  
1-21  
2. Power, CPU, and chassis fan connectors (3-pin PWR_FAN, 4-pin CPU_FAN 1-20  
and 3-pin CHA_FAN)  
3. AMD FM1 socket  
1-8  
4. DDR3 DIMM slots  
1-11  
1-22  
1-17  
1-4  
5. SATA 3.0Gb/s connectors (7-pin SATA3G_1~6)  
6. Clear RTC RAM (3-pin CLRTC)  
7. Standby power LED (SB_PWR)  
8. System panel connector (10-1 pin F_PANEL)  
9. Speaker connector (4-pin SPEAKER)  
10. USB 2.0 connectors (10-1 pin USB56, USB78, USB910)  
11. Digital audio connector (4-1 pin SPDIF_OUT)  
12. LPT connector (26-1 pin LPT)  
1-24  
1-20  
1-26  
1-25  
1-24  
1-25  
1-23  
13. Front panel audio connector (10-1 pin AAFP)  
14. Serial port connector (10-1 pin COM1)  
1-7  
ASUS F1A55-M LE R2.0  
 
1.4  
Accelerated Processing Unit (CPU)  
The motherboard comes with an FM1 socket designed for AMD® A- & E2-series accelerated  
processors with AMD® Radeon HD 6000 series graphics.  
F1A55-M LE R2.0  
F1A55-M LE R2.0 CPU socket FM1  
1.4.1  
Installing the APU  
Ensure that you use a CPU designed for the FM2 socket. The APU fits in only one correct  
orientation. DO NOT force the APU into the socket to prevent bending the connectors on  
the socket and damaging the APU!  
1
2
1-8  
Chapter 1: Product introduction  
 
4
3
1.4.2  
APU heatsink and fan assembly installation  
Apply the Thermal Interface Material  
to the APU heatsink and APU before  
you install the heatsink and fan if  
necessary.  
To install the APU heatsink and fan assembly  
1
2
1-9  
ASUS F1A55-M LE R2.0  
 
3
4
5
To uninstall the APU heatsink and fan assembly  
1
2
3
4
1-10  
Chapter 1: Product introduction  
5
1.5  
System memory  
Overview  
1.5.1  
This motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules  
(DIMM) sockets.  
A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched  
differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for  
better performance with less power consumption.  
The figure illustrates the location of the DDR3 DIMM sockets:  
Channel  
Sockets  
DIMM_A1  
DIMM_B1  
Channel A  
Channel B  
F1A55-M LE R2.0  
F1A55-M LE R2.0 240-pin DDR3 DIMM sockets  
1-11  
ASUS F1A55-M LE R2.0  
 
1.5.2  
Memory configurations  
You may install 1GB, 2GB, 4GB, 8GB, and 16GB unbuffered non-ECC DDR3 DIMMs into the  
DIMM sockets.  
Memory module with memory frequency higher than 2133 MHz and its corresponding  
timing or the loaded XMP profile is not the JEDEC memory standard. The stability and  
compatibility of these memory modules depend on the CPU’s capabilities and other  
installed devices.  
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.  
According to Intel CPU specification, DIMM voltage below 1.65V is recommended to  
protect the CPU.  
Always install DIMMs with the same CAS latency. For optimal compatibility, we  
recommend that you install memory modules of the same version or date code (D/C)  
from the same vendor. Check with the retailer to get the correct memory modules.  
Due to the memory address limitation on 32-bit Windows® OS, when you install 4GB  
or more memory on the motherboard, the actual usable memory for the OS can be  
about 3GB or less. For effective use of memory, we recommend that you do any of the  
following:  
Use a maximum of 3GB system memory if you are using a 32-bit Windows® OS  
Install a 64-bit Windows® OS when you want to install 4GB or more on the  
motherboard.  
This motherboard does not support DIMMs made up of 256 megabits (Mb) chips or  
less.  
The maximum 32GB memory capacity can be supported with 16GB or above DIMMs.  
ASUS will update the memory QVL once the DIMMs are available in the market.  
The default memory operation frequency is dependent on its Serial Presence Detect  
(SPD), which is the standard way of accessing information from a memory module.  
Under the default state, some memory modules for overclocking may operate at a  
lower frequency than the vendor-marked value. To operate at the vendor-marked  
or at a higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory  
frequency adjustment.  
For system stability, use a more efficient memory cooling system to support a full  
memory load (2 DIMMs) or overclocking condition.  
1-12  
Chapter 1: Product introduction  
 
F1A55-M LE R2.0 Series Motherboard Qualified Vendors Lists (QVL)  
SS: Single-sided / DS: Double-sided  
DIMM support:  
1 DIMM: Supports one module inserted into either slot as single-channel memory  
configuration.  
2 DIMMs: Supports one pair of modules inserted into both the blue slots as one  
pair of dual-channel memory configuration.  
DDR3 1600 MHz and higher memory frequency is supported by Intel® 3rd generation  
processors.  
Due to the CPU behavior, DDR3 2133/1866 memory module will run at DDR3  
2000/1800 MHz frequency.  
F1A55-M LE R2.0 Series Motherboard Qualified Vendors Lists (QVL)  
DDR3-2250 (O.C.) MHz capability  
DIMM socket  
support (Optional)  
SS/ Chip  
Vendors  
Part No.  
Size  
Chip NO. Timing  
Voltage  
DS  
Brand  
1 DIMM  
2 DIMMs  
KINGSTON KHX2250C9D3T1K2/4GX(XMP)  
4GB ( 2x 2GB ) DS  
-
-
-
1.65V  
DDR3-2000 (O.C.) MHz capability  
Vendors  
Part No.  
Size  
SS/  
DS  
Chip  
Brand  
Chip  
No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
Apacer  
78.AAGD5.9KD(XMP)  
6GB(  
3 x 2GB)  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
9-9-9-27  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.6V  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CORSAIR  
G.SKILL  
CMT6GX3M3A  
2000C8(XMP)  
6GB  
(3 x 2GB)  
8-9-8-24  
F3-16000CL9D-4GB  
FLS(XMP)  
4GB  
(2 x 2GB)  
9-9-9-24  
G.SKILL  
F3-16000CL6T-6GB  
PIS(XMP)  
6GB  
(3x 2GB )  
6-9-6-24  
GEIL  
GUP34GB2000  
C9DC(XMP)  
4GB  
(2 x 2GB)  
9-9-9-28  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
OCZ  
KHX2000C9AD3  
T1K2/4GX(XMP)  
4GB  
( 2x 2GB )  
-
KHX2000C9AD3  
W1K2/4GX(XMP)  
4GB  
( 2x 2GB )  
-
KHX2000C9AD3  
T1K2/4GX(XMP)  
4GB  
(2 x 2GB)  
9
KHX2000C9AD3  
W1K3/6GX(XMP)  
6GB  
( 3x 2GB )  
-
KHX2000C9AD3  
T1K3/6GX(XMP)  
6GB  
(3x 2GB )  
-
OCZ3XTEP200  
0C9LV4GK  
4GB  
(2 x 2GB)  
9-9-9-24  
-
Transcend  
PATRIOT  
TX2000KLN-8GK(XMP)  
PVT36G2000LLK  
8GB  
(2 x 4GB)  
6GB  
(3 x 2GB)  
8-8-8-24  
1.65V  
1-13  
ASUS F1A55-M LE R2.0  
DDR3-1866 MHz capability  
Vendors  
Part No.  
Size  
SS/  
DS  
Chip  
Brand  
Chip  
No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
CORSAIR  
CORSAIR  
CORSAIR  
G.SKILL  
KINGSTON  
KINGSTON  
OCZ  
CMT4GX3M2A  
1866C9(XMP)  
4GB  
(2 x 2GB)  
DS  
DS  
DS  
DS  
SS  
DS  
DS  
DS  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9-9-9-24  
9-9-9-24  
9-10-9-27  
9-10-9-28  
-
1.65V  
1.65V  
1.50V  
1.5V  
CMT6GX3MA  
1866C9(XMP)  
6GB  
(3 x 2GB)  
CMZ8GX3M2A  
1866C9(XMP)  
8GB  
(2 x 4GB)  
F3-14900CL9D-8G  
BXL(XMP)  
8GB  
(2 x 4GB)  
KHX1866C9D3T1  
K3/3GX(XMP)  
3GB  
(3 x 1GB)  
1.65V  
1.65V  
1.65V  
1.65V  
KHX1866C9D3T  
1K3/6GX(XMP)  
6GB  
(3 x 2GB)  
-
OCZ3G1866  
LV4GK  
4GB  
(2 x 2GB)  
10-10-10-27  
9-9-9-28  
OCZ  
OCZ3P1866C9  
LV6GK  
6GB  
(3 x 2GB)  
DDR3-1600 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip  
No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
A-Data  
AX3U1600XB2  
G79-2X(XMP)  
4GB(2 x 2GB)  
8GB(2 x 4GB)  
8GB(2 x 4GB)  
3GB(3 x 1GB)  
12GB(6x2GB)  
4GB(2 x 2GB)  
4GB(2 x 2GB)  
6GB(3 x 2GB)  
6GB(3 x 2GB)  
8GB(2 x 4GB)  
8GB(4 x 2GB)  
6GB(3 x 2GB)  
2GB(2 x 1GB)  
DS  
DS  
DS  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
SS  
7-9-7-21  
9-9-9-24  
7-9-7-21  
8-8-8-24  
8-8-8-24  
7-8-7-20  
9-9-9-24  
8-8-8-24  
8-8-8-24  
9-9-9-24  
9-9-9-24  
-
1.55V-1.75V  
1.55V-1.75V  
1.55V-1.75V  
1.65V  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A-Data  
AX3U1600GC4  
G9-2G(XMP)  
A-Data  
AX3U1600XC4  
G79-2X(XMP)  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
Crucial  
TR3X3G1600  
C8D(XMP)  
CMD12GX3M6A  
1600C8(XMP)  
1.65V  
CMP4GX3M2C  
1600C7(XMP)  
1.65V  
CMX4GX3M2A  
1600C9(XMP)  
1.65V  
TR3X6G1600  
C8 G(XMP)  
1.65V  
TR3X6G1600  
C8D G(XMP)  
1.65V  
CMP8GX3M2A  
1600C9(XMP)  
1.65V  
CMX8GX3M4A  
1600C9(XMP)  
1.65V  
BL25664BN  
1608.16FF(XMP)  
-
G.SKILL  
F3-12800CL9D-  
2GBNQ(XMP)  
9-9-9-24  
1.5V  
(continued on the next page)  
1-14  
Chapter 1: Product introduction  
DDR3-1600 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
GEIL  
F3-12800CL7D-4G  
BRH(XMP)  
4GB  
(2 x 2GB)  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7-7-7-24  
7-7-8-24  
7-8-7-24  
8-8-8-24  
9-9-9-24  
9-9-9-24  
9-9-9-24  
7-8-7-24  
8-8-8-24  
9-9-9-24  
9-9-9-28  
8-8-8-28  
-
1.6V  
F3-12800CL7D-  
4GBECO(XMP)  
4GB  
(2 x 2GB)  
XMP  
1.35V  
F3-12800CL7D-  
4GBRM(XMP)  
4GB  
(2 x 2GB)  
1.6V  
F3-12800CL8D-  
4GBRM(XMP)  
4GB  
(2 x 2GB)  
1.60V  
F3-12800CL9D-  
4GBECO(XMP)  
4GB  
(2 x 2GB)  
XMP  
1.35V  
F3-12800CL9D-  
4GBRL(XMP)  
4GB  
(2 x 2GB)  
1.5V  
F3-12800CL9T-  
6GBNQ(XMP)  
6GB  
(3 x 2GB)  
1.5V~  
1.6V  
F3-12800CL7D-  
8GBRH(XMP)  
8GB  
(2 x 4GB)  
1.6V  
F3-12800CL8D-  
8GBECO(XMP)  
8GB  
(2 x 4GB)  
XMP  
1.35V  
F3-12800CL9D-  
8GBRL(XMP)  
8GB  
(2 x 4GB)  
1.5V  
1.6V  
1.6V  
-
GET316GB1600  
C9QC(XMP)  
16GB  
( 4x 4GB )  
GEIL  
GV34GB1600  
C8DC(XMP)  
2GB  
2GB  
Kingmax  
KINGSTON  
KINGSTON  
FLGE85F-B8KJ9A  
FEIS(XMP)  
KHX1600C9D3  
K3/12GX(XMP)  
12GB  
(3x4GB)  
9-9-9-27  
9-9-9-27  
-
1.65V  
1.65V  
1.65V  
KHX1600C9D3  
T1BK3/12GX(XMP)  
12GB  
(3x4GB)  
KINGSTON  
KINGSTON  
KHX1600C9AD3/2G  
2GB  
2GB  
DS  
DS  
-
KVR1600D3  
N11/2G-ES  
KTC  
D1288JPN  
DPLD9U  
11-11-  
11-28  
1.35V-  
1.5V  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KHX1600C7D3K2/  
4GX(XMP)  
4GB  
( 2x 2GB )  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.65V  
1.65V  
1.65V  
1.65V  
KHX1600C8D3K2/  
4GX(XMP)  
4GB  
(2 x 2GB)  
8
KHX1600C8D3T1K2/  
4GX(XMP)  
4GB  
(2 x 2GB)  
8
KHX1600C9D3K2/  
4GX(XMP)  
4GB  
(2 x 2GB)  
9
KHX1600C9D3LK2/  
4GX(XMP)  
4GB  
(2 x 2GB)  
9
XMP  
1.35V  
KHX1600C9D3X2K2/  
4GX(XMP)  
4GB  
(2 x 2GB)  
9-9-9-27  
1.65V  
1.65V  
1.65V  
KHX1600C9D3T1K3/  
6GX(XMP)  
6GB ( 3x  
2GB )  
-
KHX1600C9D3K3/  
6GX(XMP)  
6GB(3 x  
2GB)  
9
(continued on the next page)  
1-15  
ASUS F1A55-M LE R2.0  
DDR3-1600 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip  
No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
KINGSTON  
KINGSTON  
OCZ  
KHX1600C9D3  
T1BK3/6GX(XMP)  
6GB(  
3 x 2GB)  
DS  
DS  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
9-9-9-27  
9-9-9-27  
8-8-8-24  
8-8-8-24  
7-7-7-24  
8-8-8-24  
-
1.65V  
1.65V  
1.65V  
1.65V  
1.65V  
1.7V  
KHX1600C9D3K2/  
8GX(XMP)  
8GB  
(2 x 4GB)  
OCZ3G1600LV3GK  
3GB  
(3 x 1GB)  
OCZ  
OCZ3BE1600  
C8LV4GK  
4GB  
(2 x 2GB)  
OCZ  
OCZ3BE1600  
LV4GK  
4GB  
(2 x 2GB)  
OCZ  
OCZ3G1600  
4GK  
4GB  
(2 x 2GB)  
OCZ  
OCZ3OB1600  
LV4GK  
4GB  
(2 x 2GB)  
1.65V  
1.65V  
-
OCZ  
OCZ3G1600  
LV6GK  
6GB  
(3 x 2GB)  
8-8-8-24  
9
Super Talent  
WA160UX6G9  
6GB  
(3 x 2GB)  
DDR3-1333 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
A-Data  
AD31333001GOU  
AD63I1B0823EV  
1GB  
2GB  
SS  
A-Data  
AD30908C8D-  
151C E0906  
-
-
-
A-Data  
A-Data  
SS  
SS  
A-Data  
-
3CCA-1509A  
-
-
AXDU1333GC2  
G9-2G(XMP)  
4GB  
(2 x 2GB)  
9-9-9-24  
1.25V-  
1.35V  
(low  
voltage)  
A-Data  
Apacer  
AD63I1C1624EV  
78.A1GC6.9L1  
4GB  
2GB  
DS  
DS  
A-Data  
Apacer  
3CCA-1509A  
-
-
-
-
AM5D5808  
DEWSBG  
Apacer  
78.A1GC6.9L1  
2GB  
4GB  
1GB  
DS  
DS  
SS  
SS  
SS  
DS  
DS  
Apacer  
AM5D5808  
FEQSBG  
9
-
Apacer  
78.B1GDE.9L10C  
Apacer  
AM5D5908  
CEHSBG  
-
-
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CORSAIR  
CM3X1024-  
1333C9  
-
-
-
-
-
-
-
-
-
-
9-9-9-24  
9-9-9-24  
9-9-9-24  
9-9-9-24  
9-9-9-24  
1.60V  
1.50V  
1.50V  
1.60V  
1.50V  
TR3X3G1333C9 G  
TR3X6G1333C9 G  
3GB  
(3 x 1GB)  
6GB  
(3x 2GB)  
CMD24GX3M6  
A1333C9(XMP)  
24GB  
(6x4GB)  
TW3X4G1333  
C9D G  
4GB  
(2 x 2GB)  
(continued on the next page)  
1-16  
Chapter 1: Product introduction  
DDR3-1333 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
CORSAIR  
Crucial  
CMD8GX3M4  
A1333C7  
8GB(4 x  
2GB)  
DS  
SS  
DS  
DS  
SS  
-
-
7-7-7-20  
1.60V  
CT12864B  
A1339.8FF  
1GB  
2GB  
Micron  
Micron  
-
9FF22D9KPT  
9
-
Crucial  
CT25664B  
A1339.16FF  
9KF27D9KPT  
-
9
-
Crucial  
BL25664BN13  
37.16FF (XMP)  
6GB(3 x  
2GB)  
7-7-7-24  
-
1.65V  
ELPIDA  
EBJ10UE8  
EDF0-DJ-F  
1GB  
2GB  
1GB  
ELPIDA  
J1108EDSE-  
DJ-F  
1.35V  
(low  
voltage)  
ELPIDA  
EBJ21UE8  
EDF0-DJ-F  
DS  
ELPIDA  
J1108EDSE-  
DJ-F  
-
1.35V  
(low  
voltage)  
G.SKILL  
G.SKILL  
F3-10600CL8  
D-2GBHK(XMP)  
SS  
SS  
G.SKILL  
-
-
-
-
-
F3-10600CL9  
D-2GBNQ  
2GB  
(2 x  
9-9-9-24  
1.5V  
1GB)  
G.SKILL  
G.SKILL  
G.SKILL  
G.SKILL  
GEIL  
F3-10666CL7  
T-3GBPK(XMP)  
3GB  
(3 x  
1GB)  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
SS  
-
-
-
-
-
-
-
7-7-7-18  
8-8-8-8-24  
7-7-7-18  
7-7-7-21  
9-9-9-24  
9-9-9-24  
9-9-9-24  
9-9-9-24  
7-7-7-24  
-
1.5~1.6V  
F3-10666CL8  
D-  
4GBECO(XMP)  
4GB  
(2 x  
2GB)  
-
XMP  
1.35V  
F3-10666CL7  
T-6GBPK(XMP)  
6GB  
(3 x  
2GB)  
-
1.5~1.6V  
1.5V  
F3-10666CL7  
D-8GBRH(XMP)  
8GB  
(2 x  
4GB)  
-
GET316GB  
1333C9QC  
16GB  
(4x  
4GB)  
-
1.5V  
GEIL  
GV32GB  
1333C9DC  
2GB  
(2 x  
1GB)  
-
1.5V  
GEIL  
GG34GB  
1333C9DC  
4GB  
(2 x  
2GB)  
GEIL  
GL1L128M  
88BA12N  
1.3V  
(low  
voltage)  
GEIL  
GV34GB  
1333C9DC  
4GB  
(2 x  
2GB)  
-
-
-
1.5V  
1.5V  
GEIL  
GVP34GB  
1333C7DC  
4GB  
(2 x  
2GB)  
-
Hynix  
HMT112U6  
TFR8A-H9  
1GB  
Hynix  
H5TC1G83  
TFRH9A  
1.35V  
(low  
voltage)  
Hynix  
Hynix  
HMT325U6  
BFR8C-H9  
2GB  
2GB  
SS  
DS  
Hynix  
Hynix  
H5TQ2G83  
BFRH9C  
-
-
-
HMT125U6  
TFR8A-H9  
H5TC1G83  
TFRH9A  
1.35V  
(low  
voltage)  
Hynix  
HMT351U6  
BFR8C-H9  
4GB  
DS  
Hynix  
H5TQ2G83  
BFRH9C  
-
-
(continued on the next page)  
1-17  
ASUS F1A55-M LE R2.0  
DDR3-1333 MHz capability  
Vendors  
Part No.  
Size  
SS/DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
Kingmax  
Kingmax  
KINGMAX  
Kingmax  
Kingmax  
KINGMAX  
Kingmax  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
KINGSTON  
Micron  
FLFD45F-B8  
KL9 NAES  
1GB  
2GB  
2GB  
2GB  
2GB  
4GB  
4GB  
1GB  
2GB  
2GB  
2GB  
2GB  
SS  
SS  
SS  
SS  
DS  
DS  
DS  
SS  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
DS  
SS  
SS  
SS  
DS  
DS  
DS  
DS  
DS  
DS  
Kingmax  
Kingmax  
KINGMAX  
Kingmax  
Kingmax  
KINGMAX  
Kingmax  
ELPIDA  
Hynix  
ELPIDA  
KTC  
KKB8FNWB  
FGNX-27A  
-
-
FLFE85F-C8  
KF9 CAES  
KFC8FMFX  
F-DXX-15A  
-
-
FLFE85F-C8  
KL9 NAES  
KFC8FNLX  
F-DXX-15A  
-
-
FLFE85F-C8  
KM9 NAES  
KFC8FNMX  
F-BXX-15A  
-
-
FLFE85F-B8  
KL9 NEES  
KKB8FNWB  
FGNX-26A  
-
-
FLFF65F-C8  
KL9 NEES  
KFC8FNLX  
F-DXX-15A  
-
-
FLFF65F-C8  
KM9 NEES  
KFC8FNMX  
F-BXX-15A  
-
-
KVR1333  
D3N9/1G(  
J1108BD  
BG-DJ-F  
9
1.5V  
-
KVR1333  
D3N9/2G  
H5TQ2G83  
AFRH9C  
9
KVR1333  
D3N9/2G  
J1108BF  
BG-DJ-F  
9
1.5V  
1.5V  
1.5V  
1.65V  
KVR1333  
D3N9/2G  
D1288JPN  
DPLD9U  
9
KVR1333  
D3N9/2G  
ELPIDA  
-
J1108BD  
SE-DJ-F  
9
KHX1333C7D3  
K2/4GX(XMP)  
4GB  
(2x2GB)  
-
-
7
KHX1333C9D3  
UK2/4GX(XMP)  
4GB  
(2 x2GB)  
-
9
XMP  
1.25V  
KVR1333  
D3N9/4G  
4GB  
4GB  
1GB  
1GB  
2GB  
2GB  
4GB  
ELPIDA  
Hynix  
Micron  
Micron  
Micron  
Micron  
Micron  
-
J2108BC  
SE-DJ-F  
9
1.5V  
KVR1333  
D3N9/4G  
H5TQ2G  
83AFR  
-
-
MT4JTF12864  
AZ-1G4D1  
OJD12D9LGQ  
-
-
Micron  
MT8JTF12864  
AZ-1G4F1  
9FF22D9KPT  
9
-
Micron  
MT8JTF25664  
AZ-1G4D1  
OJD12D9LGK  
-
-
Micron  
MT16JTF25664  
AZ-1G4F1  
9KF27D9KPT  
9
-
Micron  
MT16JTF51264  
AZ-1G4D1  
OLD22D9LGK  
-
-
OCZ  
OCZ3F13334GK  
OCZ3P13334GK  
4GB  
(2x2GB)  
-
-
-
-
9-9-9-20  
7-7-7-20  
7-7-7-20  
7-7-7-20  
1.7V  
1.8V  
1.65V  
1.75V  
OCZ  
4GB  
(2x2GB)  
-
OCZ  
OCZ3P1333  
LV4GK  
4GB  
(2x2GB)  
-
OCZ  
OCZ3X1333  
4GK(XMP)  
4GB  
(2x2GB)  
-
(continued on the next page)  
1-18  
Chapter 1: Product introduction  
DDR3-1333 MHz capability  
Vendors  
Part No.  
SS/DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
OCZ  
OCZ3P1333  
LV6GK  
DS  
-
-
7-7-7-20  
1.65V  
PSC  
AL7F8G73F-DJ2  
AL8F8G73F-DJ2  
SS  
DS  
SS  
PSC  
A3P1GF3FGF  
A3P1GF3FGF  
K4B1G0846F  
-
-
-
-
-
-
PSC  
PSC  
SAMSUNG  
M378B2873  
FHS-CH9  
SAMSUNG  
SAMSUNG  
SAMSUNG  
SAMSUNG  
M378B5773D  
H0-CH9  
SS  
DS  
DS  
SAMSUNG  
SAMSUNG  
SAMSUNG  
K4B2G0846D  
K4B1G0846F  
K4B2G0846C  
-
-
-
-
-
-
M378B5673F  
H0-CH9  
M378B5273C  
H0-CH9  
Super Talent  
Super Talent  
Super Talent  
Super Talent  
Super Talent  
Transcend  
W1333UA1GH  
W1333X2G8(XMP)  
W1333UB2GS  
W1333UB4GS  
W1333UX6GM  
JM1333KLN-2G  
JM1333KLU-2G  
TS256MLK64V3U  
SS  
SS  
DS  
DS  
DS  
SS  
DS  
DS  
Hynix  
H5TQ1G83TFR  
-
9
-
-
8
-
SAMSUNG  
SAMSUNG  
Micron  
K4B1G0846F  
K4B2G0846C  
0BF27D9KPT  
0YD77D9LGK  
TK243PDF3  
9GF27D9KPT  
9
-
-
-
9-9-9-24  
1.5V  
Micron  
-
-
-
-
-
-
Transcend  
Transcend  
Micron  
Transcend  
DDR3-1066 MHz capability  
Vendors  
Part No.  
Size  
SS/  
DS  
Chip  
Brand  
Chip No.  
Timing  
Voltage  
DIMM socket  
support (Optional)  
1 DIMM  
2 DIMM  
Crucial  
Crucial  
ELPIDA  
CT12864B  
A1067.8FF  
1GB  
2GB  
1GB  
SS  
DS  
SS  
Micron  
Micron  
ELPIDA  
9GF22D9KPT  
9HF22D9KPT  
J1108EDSE-DJ-F  
7
7
-
-
-
CT25664B  
A1067.16FF  
EBJ10UE8  
EDF0-AE-F  
1.35V  
(low  
voltage)  
ELPIDA  
EBJ21UE8  
EDF0-AE-F  
2GB  
DS  
ELPIDA  
J1108EDSE-DJ-F  
-
1.35V  
(low  
voltage)  
KINGSTON  
KINGSTON  
KINGSTON  
Micron  
KVR1066  
D3N7/1G  
1GB  
2GB  
4GB  
1GB  
2GB  
SS  
DS  
DS  
SS  
DS  
ELPIDA  
ELPIDA  
Hynix  
J1108BFSE-DJ-F  
J1108BDSE-DJ-F  
7
7
7
7
7
1.5V  
1.5V  
1.5V  
-
KVR1066  
D3N7/2G  
KVR1066  
D3N7/4G  
H5TQ2  
G83AFR  
MT8JTF12864  
AZ-1G1F1  
Micron  
Micron  
9GF22D9KPT  
9HF22D9KPT  
Micron  
MT16JTF2566  
4AZ-1G1F1  
-
1-19  
ASUS F1A55-M LE R2.0  
1.5.3  
1
Installing a DIMM  
2
3
To remove a DIMM  
B
A
A
1-20  
Chapter 1: Product introduction  
 
1.6  
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.  
Unplug the power cord before adding or removing expansion cards. Failure to do so may  
cause you physical injury and damage motherboard components.  
1.6.1  
Installing an expansion card  
To install an expansion card:  
1.  
Before installing the expansion card, read the documentation that came with it and  
make the necessary hardware settings for the card.  
2.  
3.  
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.  
4.  
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.  
1.6.2  
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.  
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.  
1-21  
ASUS F1A55-M LE R2.0  
 
1.6.3  
PCI slot  
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that  
comply with PCI specifications.  
1.6.4  
PCI Express x1 slot  
This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards  
that comply with the PCI Express specifications.  
1.6.5  
PCI Express x16 slots  
This motherboard has two PCI Express 2.0 x16 slot that supports PCI Express 2.0 x16  
graphic cards complying with the PCI Express specifications.  
PCI Express operating mode  
VGA  
configuration  
PCIe x16_1  
PCIe x16_2  
Single VGA/  
PCIe card  
x16 (Recommended for single  
VGA card)  
N/A  
Dual VGA/PCIe  
card  
x16  
x4  
In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16  
graphics card to get better performance.  
We recommend that you provide sufficient power when running CrossFireX™ mode.  
Connect a chassis fan to the motherboard connector labeled CHA_FAN when using  
multiple graphics cards for better thermal environment.  
1-22  
Chapter 1: Product introduction  
 
1.7  
Jumpers  
Clear RTC RAM (3-pin 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.  
CLRTC  
1
2
2
3
F1A55-M LE R2.0  
Normal  
Clear RTC  
(Default)  
F1A55-M LE R2.0 Clear RTC RAM  
To erase the RTC RAM:  
1.  
2.  
Turn OFF the computer and unplug the power cord.  
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.  
3.  
4.  
Plug the power cord and turn ON the computer.  
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!  
If the steps above do not help, remove the onboard battery and move the jumper  
again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the  
battery.  
You do not need to clear the RTC when the system hangs due to overclocking. For  
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.  
Shut down and reboot the system, then the BIOS automatically resets parameter  
settings to default values.  
1-23  
ASUS F1A55-M LE R2.0  
 
1.8  
Connectors  
1.8.1  
Rear panel connectors  
2
1
3
4 5  
7
8
9
6
1.  
2.  
PS/2 Mouse port (green). This port is for a PS/2 mouse.  
Video Graphics Adapter (VGA) port. This 15-pin port is for a VGA monitor or other  
VGA-compatible devices.  
3.  
LAN (RJ-45) port. This port allows Gigabit connection to a Local Area Network (LAN)  
through a network hub. Refer to the table below for the LAN port LED indications.  
LAN port LED indications  
Speed  
LED  
Activity Link  
LED  
Activity/Link LED  
Speed LED  
Status  
Description Status Description  
OFF  
No link  
Linked  
OFF  
10Mbps  
connection  
ORANGE  
ORANGE 100Mbps  
connection  
LAN port  
BLINKING Data activity GREEN  
1Gbps  
connection  
4.  
5.  
6.  
Line In port (light blue). This port connects to the tape, CD, DVD player, or other  
audio sources.  
Line Out port (lime). This port connects to a headphone or a speaker. In the 4, 6, and  
8-channel configurations, the function of this port becomes Front Speaker Out.  
Microphone port (pink). This port connects to a microphone.  
Refer to the audio configuration table for the function of the audio ports in 2, 4, 6, or 8-  
channel configuration.  
1-24  
Chapter 1: Product introduction  
 
Audio 2, 4, 6, or 8-channel configuration  
Port  
2-channel  
4-channel  
Rear Speaker Rear Speaker Rear Speaker  
Out Out Out  
Front Speaker Front Speaker Front Speaker  
6-channel  
8-channel  
Light Blue (Rear  
panel)  
Line In  
Lime (Rear  
panel)  
Line Out  
Mic In  
Out  
Out  
Out  
Pink (Rear  
panel)  
Mic In  
Bass/Center  
Bass/Center  
Lime (Front  
panel)  
Side Speaker  
Out  
7.  
8.  
9.  
USB 2.0 ports 1~6. These two 4-pin Universal Serial Bus (USB) ports are for USB  
2.0/1.1 devices.  
DVI-D port. This port is for any DVI-D compatible device. DVI-D can’t be converted to  
output RGB Signal to CRT and isn’t compatible with DVI-I.  
PS/2 Keyboard port (green). This port is for a PS/2 keyboard.  
1-25  
ASUS F1A55-M LE R2.0  
1.8.2  
Internal connectors  
1.  
Power, CPU and chassis fan connectors  
(3-pin PWR FAN, 4-pin CPU_FAN, and 3-pin CHA_FAN)  
Connect the fan cables to the fan connectors on the motherboard, ensuring that the  
black wire of each cable matches the ground pin of the connector.  
PWR_FAN CPU_FAN  
CHA_FAN  
F1A55-M LE R2.0  
F1A55-M LE R2.0 fan connectors  
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.  
The CPU_FAN connector supports a CPU fan of maximum 2A (24 W) fan power.  
Only the CPU_FAN and CHA_FAN connectors support the ASUS Fan Xpert feature.  
If you install two VGA cards, we recommend that you plug the rear chassis fan cable  
to the motherboard connector labeled CHA_FAN for better thermal environment.  
2.  
Speaker connector (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.  
SPEAKER  
F1A55-M LE R2.0  
PIN 1  
F1A55-M LE R2.0 Speaker Out Connector  
1-26  
Chapter 1: Product introduction  
 
3.  
ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)  
These connectors are for an ATX power supply. The plugs from the power supply are  
designed to fit these connectors in only one orientation. Find the proper orientation and  
push down firmly until the connectors completely fit.  
ATX12V  
EATXPWR  
+3 Volts  
+12 Volts  
+12 Volts  
+5V Standby  
Power OK  
GND  
GND  
GND  
GND  
+12V DC  
+12V DC  
+5 Volts  
+5 Volts  
+5 Volts  
-5 Volts  
GND  
PIN 1  
+5 Volts  
GND  
GND  
GND  
+5 Volts  
GND  
PSON#  
GND  
F1A55-M LE R2.0  
+3 Volts  
+3 Volts  
-12 Volts  
+3 Volts  
PIN 1  
F1A55-M LE R2.0 ATX power connectors  
We recommend that you use an ATX 12V Specification 2.0--compliant power supply  
unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin  
power plugs.  
If you intend to use a PSU with 20-pin and 4-pin power plugs, ensure that the 20-pin  
power plug can provide at least 15 A on +12 V and that the PSU has a minimum  
power rating of 300W. The system may become unstable or may not boot up if the  
power is inadequate.  
DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the system will  
not boot up.  
We recommend that you use a PSU with higher power output when configuring a  
system with more power-consuming devices or when you intend to install additional  
devices. The system may become unstable or may not boot up if the power is  
inadequate.  
If you are uncertain about the minimum power supply requirement for your system,  
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.  
1-27  
ASUS F1A55-M LE R2.0  
4.  
Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~6)  
These connectors are for the Serial ATA 3.0 Gb/s signal cables for Serial ATA hard  
disk drives and optical disc drives. If you installed Serial ATA hard disk drives, you  
can create a RAID 0, RAID 1, RAID 10, or JBOD configuration through the onboard  
controller.  
GND  
RSATA_RXP6  
RSATA_RXN6  
GND  
RSATA_TXN6  
RSATA_TXP6  
GND  
SATA3G_4  
SATA3G_3  
SATA3G_2  
SATA3G_1  
SATA3G_6  
GND  
RSATA_RXP5  
RSATA_RXN5  
GND  
RSATA_TXN5  
RSATA_TXP5  
GND  
SATA3G_5  
F1A55-M LE R2.0  
F1A55-M LE R2.0 SATA 3.0Gb/s connectors  
These connectors are set to IDE mode by default. In IDE mode, you can connect  
Serial ATA boot/data hard disk drives to these connectors. If you intend to create a  
Serial ATA RAID set using these connectors, set the type of the SATA connectors in  
the BIOS to [RAID]. See section 2.5.2 SATA Configuration for details.  
You must install Windows® XP Service Pack 3 or later version before using Serial  
ATA hard disk drives. The Serial ATA RAID feature is available only if you are using  
Windows® XP SP3 or later version.  
When using hot-plug and NCQ, set the type of the SATA connectors in the BIOS to  
[AHCI]. See section 2.5.2 SATA Configuration for details.  
1-28  
Chapter 1: Product introduction  
5.  
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  
PIN 1  
F1A55-M LE R2.0  
F1A55-M LE R2.0 Serial port (COM1) connector  
The COM module is purchased separately.  
1-29  
ASUS F1A55-M LE R2.0  
6.  
System panel connector (10-1 pin F_PANEL)  
This connector supports several chassis-mounted functions.  
F_PANEL  
PWR LED PWR BTN  
PIN 1  
F1A55-M LE R2.0  
HD_LED RESET  
F1A55-M LE R2.0 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.  
ATX power button/soft-off button (2-pin PWRSW)  
This 2-pin connector is for the system power button.  
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.  
7.  
LPT connector (26-1 pin LPT)  
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT  
standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible  
computers.  
LPT  
F1A55-M LE R2.0  
F1A55-M LE R2.0 Parallel Port Connector  
1-30  
Chapter 1: Product introduction  
8.  
Digital audio connector (4-1 pin SPDIF_OUT)  
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.  
F1A55-M LE R2.0  
SPDIF_OUT  
F1A55-M LE R2.0 Digital audio connector  
Ensure that the audio device of Sound playback is Realtek High Definition Audio (the name  
may be different based on the OS). Go to Start > Control Panel > Sounds and Audio  
Devices > Sound Playback to configure the setting.  
The S/PDIF module is purchased separately.  
9.  
Front panel audio connector (10-1 pin AAFP)  
This connector is for a chassis-mounted front panel audio I/O module that supports  
either High Definition Audio or AC`97 audio standard. Connect one end of the front  
panel audio I/O module cable to this connector.  
AAFP  
PIN 1  
F1A55-M LE R2.0  
HD-audio-compliant  
pin definition  
Legacy AC’97  
compliant definition  
F1A55-M LE R2.0 Front panel audio connector  
We recommend that you connect a high-definition front panel audio module to this  
connector to avail of the motherboard high-definition audio capability.  
If you want to connect a high definition front panel audio module to this connector, set  
the Front Panel Type item in the BIOS to [HD]. See section 2.5.5 Onboard Devices  
Configuration for details.  
The front panel audio I/O module is purchased separately.  
1-31  
ASUS F1A55-M LE R2.0  
10. USB 2.0 connectors (10-1 pin USB56, USB78, 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  
480Mbps connection speed.  
USB910  
USB78  
USB56  
F1A55-M LE R2.0  
PIN 1  
PIN 1  
PIN 1  
F1A55-M LE R2.0 USB2.0 connectors  
Never connect a 1394 cable to the USB connectors. Doing so will damage the  
motherboard!  
The USB 2.0 module is purchased separately.  
1-32  
Chapter 1: Product introduction  
1.9  
Software support  
1.9.1  
Installing an operating system  
This motherboard supports Windows® XP / Vista / 7 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. Refer to your OS documentation for  
detailed information.  
Ensure that you install Windows® XP Service Pack 3 or later versions / Windows®  
Vista Service Pack 1 or later versions before installing the drivers for better  
compatibility and system stability.  
1.9.2  
Support DVD information  
The Support DVD that comes 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 DVD are subject to change at any time without notice. Visit the  
To run the Support DVD  
Place the Support DVD into the optical drive. If Autorun is enabled in your computer, the  
DVD automatically displays the Specials screen which contains the unique features of ASUS  
motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to display their  
respective menus.  
The following screen is for reference only.  
Click an icon to display  
Support DVD/motherboard  
information  
Click an item to install  
If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to  
locate the file ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run  
the DVD.  
1-33  
ASUS F1A55-M LE R2.0  
 
1-34  
Chapter 1: Product introduction  
BIOS setup  
2
2.1  
Managing and updating your BIOS  
Save a copy of the original motherboard BIOS file to a USB flash disk in case you need to  
restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update  
utility.  
2.1.1  
ASUS Update utility  
The ASUS Update is a utility that allows you to manage, save, and update the motherboard  
BIOS in Windows® environment.  
ASUS Update requires an Internet connection either through a network or an Internet  
Service Provider (ISP).  
This utility is available in the support DVD that comes with the motherboard package.  
Installing ASUS Update  
To install ASUS Update:  
1.  
2.  
3.  
Place the support DVD in the optical drive. The Drivers menu appears.  
Click the Utilities tab, then click AI Suite II.  
Follow the onscreen instructions to complete the installation.  
Quit all Windows® applications before you update the BIOS using this utility.  
Updating the BIOS  
To update the BIOS:  
1.  
From the Windows® desktop, click Start > Programs > ASUS > AI Suite II > AI Suite  
II X.XX.XX to launch the AI Suite II utility. The AI Suite II Quick Bar appears.  
2.  
Click Update button from the Quick Bar, and then click ASUS Update from the popup  
menu. The ASUS Update main screen appears. From the list, select either of the  
following methods:  
2-1  
ASUS F1A55-M LE R2.0  
 
Updating from the Internet  
a. Select Update BIOS from the Internet, then click Next.  
b. Select the ASUS FTP site nearest you to avoid network traffic, then click Next.  
c. From the FTP site, select the BIOS version that you wish to download then click  
Next.  
The ASUS Update utility is capable of updating itself through the Internet. Always update  
the utility to avail all its features.  
Updating from a BIOS file  
a. Select Update BIOS from file, then click Next.  
b. Locate the BIOS file from the Open window, then click Open.  
Follow the onscreen instructions to complete the updating process.  
3.  
2.1.2  
ASUS EZ Flash 2  
The ASUS EZ Flash 2 feature allows you to update the BIOS without using an OS-based  
utility.  
Before you start using this utility, download the latest BIOS file from the ASUS website at  
To update the BIOS using EZ Flash 2:  
1.  
Insert the USB flash disk that contains the latest BIOS file to the USB port.  
2.  
Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select  
ASUS EZ Flash Utility and press <Enter> to enable it.  
3.  
Press <Tab> to switch to the Drive field.  
4.  
Press the Up/Down arrow keys to find the USB flash disk that contains the latest BIOS,  
and then press <Enter>.  
5.  
Press <Tab> to switch to the Folder Info field.  
6.  
Press the Up/Down arrow keys to find the BIOS file, and then press <Enter> to perform  
the BIOS update process. Reboot the system when the update process is done.  
This function supports USB flash disks with FAT 32/16 format and single partition only.  
DO NOT shut down or reset the system while updating the BIOS to prevent system  
boot failure!  
2-2  
Chapter 2: BIOS setup  
 
2.1.3  
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 restore a corrupted BIOS  
file using the motherboard support DVD or a USB flash drive that contains the updated BIOS  
file.  
Before using this utility, rename the BIOS file in the removable device into  
F1A55MR2.CAP.  
The BIOS file in the support DVD may not be the latest version. Download the latest  
BIOS file from the ASUS website at www.asus.com.  
Recovering the BIOS  
To recover the BIOS:  
1.  
Turn on the system.  
2.  
Insert the support DVD to the optical drive or the USB flash drive that contains the  
BIOS file to the USB port.  
3.  
The utility automatically checks the devices for the BIOS file. When found, the utility  
reads the BIOS file and enters ASUS EZ Flash 2 utility automatically.  
4.  
The system requires you to enter BIOS Setup to recover BIOS setting. To ensure  
system compatibility and stability, we recommend that you press <F5> to load default  
BIOS values.  
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause  
system boot failure!  
2-3  
ASUS F1A55-M LE R2.0  
 
2.1.4  
ASUS BIOS Updater  
The ASUS BIOS Updater allows you to update BIOS in DOS environment. This utility also  
allows you to copy the current BIOS file that you can use as a backup when the BIOS fails or  
gets corrupted during the updating process.  
The succeeding utility screens are for reference only. The actual utility screen displays may  
not be same as shown.  
Before updating BIOS  
1.  
Prepare the motherboard support DVD and a USB flash drive in FAT32/16 format and  
single partition.  
2.  
Download the latest BIOS file and BIOS Updater from the ASUS website at  
http://support.asus.com and save them on the USB flash drive.  
NTFS is not supported under DOS environment. Do not save the BIOS file and BIOS  
Updater to a hard disk drive or USB flash drive in NTFS format.  
3.  
Turn off the computer and disconnect all SATA hard disk drives (optional).  
Booting the system in DOS environment  
1.  
Insert the USB flash drive with the latest BIOS file and BIOS Updater to the USB port.  
2.  
Boot your computer. When the ASUS Logo appears, press <F8> to show the BIOS  
Boot Device Select Menu. Insert the support DVD into the optical drive and select the  
optical drive as the boot device.  
3.  
4.  
When the Make Disk menu appears, select the FreeDOS command prompt item by  
pressing the item number.  
At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C  
(optical drive) to Drive D (USB flash drive).  
2-4  
Chapter 2: BIOS setup  
 
Backing up the current BIOS  
To back up the current BIOS file using the BIOS Updater:  
Ensure that the USB flash drive is not write-protected and has at least 1024KB free space  
to save the file.  
1.  
At the FreeDOS prompt, type bupdater /o[filename] and press <Enter>.  
Extension  
Filename  
The [filename] is any user-assigned filename with no more than eight alphanumeric  
characters for the filename and three alphanumeric characters for the extension.  
2.  
The BIOS Updater backup screen appears indicating the BIOS backup process. When  
BIOS backup is done, press any key to return to the DOS prompt.  
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ASUS F1A55-M LE R2.0  
Updating the BIOS file  
To update the BIOS file using BIOS Updater:  
1.  
At the FreeDOS prompt, type bupdater /pc /g and press <Enter>.  
2.  
The BIOS Updater screen appears as below.  
3.  
Press <Tab> to switch between screen fields and use the <Up/Down/Home/End> keys  
to select the BIOS file and press <Enter>. BIOS Updater checks the selected BIOS file  
and prompts you to confirm BIOS update.  
4.  
Select Yes and press <Enter>. When BIOS update is done, press <ESC> to exit BIOS  
Updater. Restart your computer.  
DO NOT shut down or reset the system while updating the BIOS to prevent system boot  
failure!  
For BIOS Updater version 1.04 or later, the utility automatically exits to the DOS  
prompt after updating BIOS.  
Ensure to load the BIOS default settings to ensure system compatibility and stability.  
Select the Load Optimized Defaults item under the Exit menu. Refer to section 2.9  
Exit menu for details.  
Ensure to connect all SATA hard disk drives after updating the BIOS file if you have  
disconnected them.  
2-6  
Chapter 2: BIOS setup  
2.2  
BIOS setup program  
Use the BIOS Setup program to update the BIOS or configure its parameters. The BIOS  
screens include navigation keys and brief online help to guide you in using the BIOS Setup  
program.  
Entering BIOS Setup at startup  
To enter BIOS Setup at startup:  
Press <Delete> during the Power-On Self Test (POST). If you do not press <Delete>,  
POST continues with its routines.  
Entering BIOS Setup after POST  
To enter BIOS Setup after POST:  
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. Do this option only if you  
failed to enter BIOS Setup using the first two options.  
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 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 at www.asus.com to download the latest BIOS file for this  
motherboard.  
Ensure that a USB mouse is connected to your motherboard if you want to use the  
mouse to control the BIOS setup program.  
If the system becomes unstable after changing any BIOS setting, load the default  
settings to ensure system compatibility and stability. Select the Load Optimized  
Defaults item under the Exit menu. See section 2.9 Exit Menu for details.  
If the system fails to boot after changing any BIOS setting, try to clear the CMOS and  
reset the motherboard to the default value. See section 1.7 Jumpers for information  
on how to erase the RTC RAM.  
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ASUS F1A55-M LE R2.0  
 
BIOS menu screen  
The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode.  
You can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ  
Mode/Advanced Mode screen.  
EZ Mode  
By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ  
Mode provides you an overview of the basic system information, and allows you to select  
the display language, system performance mode and boot device priority. To access the  
Advanced Mode, click Exit/Advanced Mode, then select Advanced Mode.  
The default screen for entering the BIOS setup program can be changed. Refer to the  
Setup Mode item in section 2.7 Boot menu for details.  
Selects the display language of the  
Clicks to display all fan  
BIOS setup program  
speeds if available  
Displays the CPU/motherboard temperature,  
CPU/5V/3.3V/12V voltage output,  
CPU/chassis fan speed  
Exits the BIOS setup program without saving  
the changes, saves the changes and resets  
the system, or enters the Advanced Mode  
Displays the  
Advanced mode  
functions  
Loads optimized default  
ASUS Optimal mode  
Power Saving mode  
Normal mode  
Selects the  
Advanced mode  
functions  
Displays the system properties  
of the selected mode on the  
right hand side  
Selects the boot device priority  
The boot device options vary depending on the devices you installed to the system.  
The Boot Menu(F8) button is available only when the boot device is installed to the  
system.  
2-8  
Chapter 2: BIOS setup  
 
Advanced Mode  
The Advanced Mode provides advanced options for experienced end-users to configure the  
BIOS settings. The figure below shows an example of the Advanced Mode. Refer to the  
following sections for the detailed configurations.  
To access the EZ Mode, click Exit, then select ASUS EZ Mode.  
Back button  
Menu items  
Menu bar  
Configuration fields  
General help  
Pop-up window  
Submenu item  
Navigation keys  
Menu bar  
The menu bar on top of the screen has the following main items:  
Main  
For changing the basic system configuration  
For changing the overclocking settings  
For changing the advanced system settings  
Ai Tweaker  
Advanced  
Monitor  
Boot  
For displaying the system temperature, power status, and changing the  
For changing the system boot configuration  
Tool  
For configuring options for special functions  
Exit  
For selecting the exit options and loading default settings  
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ASUS F1A55-M LE R2.0  
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.  
The other items (Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have  
their respective menu items.  
Back button  
This button appears when entering a submenu. Press <Esc> or use the USB mouse to click  
this button to return to the previous menu screen.  
Submenu items  
A greater than sign (>) before each item on any menu screen means that the item has a  
submenu. To display the submenu, select the item and press <Enter>.  
Pop-up window  
Select a menu item and press <Enter> to display a pop-up window with the configuration  
options for that item.  
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.  
Navigation keys  
At the bottom right corner of the menu screen are the navigation keys for the BIOS setup  
program. Use the navigation keys to select items in the menu and change the settings.  
General help  
At the top right corner of the menu screen is a brief description of the selected item.  
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 highlighted when selected. To change the value of a field, select it and  
press <Enter> to display a list of options.  
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Chapter 2: BIOS setup  
2.3  
Main menu  
The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup  
program. The Main menu provides you an overview of the basic system information, and  
allows you to set the system date, time, language, and security settings.  
2.3.1  
System Language [English]  
Allows you to choose the BIOS language version from the options. Configuration options:  
[English]  
[Español] [Русский]  
2.3.2  
System Date [Day xx/xx/xxxx]  
Allows you to set the system date.  
2.3.3  
System Time [xx:xx:xx]  
Allows you to set the system time.  
2.3.4  
Security  
The Security menu items allow you to change the system security settings.  
If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC)  
RAM to clear the BIOS password. See section 1.7 Jumpers for information on how to  
erase the RTC RAM.  
The Administrator or User Password items on top of the screen show the default  
Not Installed. After you set a password, these items show Installed.  
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ASUS F1A55-M LE R2.0  
 
Administrator Password  
If you have set an administrator password, we recommend that you enter the administrator  
password for accessing the system. Otherwise, you might be able to see or change only  
selected fields in the BIOS setup program.  
To set an administrator password:  
1.  
2.  
3.  
Select the Administrator Password item and press <Enter>.  
From the Create New Password box, key in a password, then press <Enter>.  
Confirm the password when prompted.  
To change an administrator password:  
1.  
2.  
Select the Administrator Password item and press <Enter>.  
From the Enter Current Password box, key in the current password, then press  
<Enter>.  
3.  
From the Create New Password box, key in a new password, then press <Enter>.  
4.  
Confirm the password when prompted.  
To clear the administrator password, follow the same steps as in changing an administrator  
password, but press <Enter> when prompted to create/confirm the password. After you clear  
the password, the Administrator Password item on top of the screen shows Not Installed.  
User Password  
If you have set a user password, you must enter the user password for accessing the system.  
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.  
3.  
Select the User Password item and press <Enter>.  
From the Create New Password box, key in a password, then press <Enter>.  
Confirm the password when prompted.  
To change a user password:  
1.  
2.  
Select the User Password item and press <Enter>.  
From the Enter Current Password box, key in the current password, then press  
<Enter>.  
3.  
From the Create New Password box, key in a new password, then press <Enter>.  
4.  
Confirm the password when prompted.  
To clear the user password, follow the same steps as in changing a user password, but press  
<Enter> when prompted to create/confirm the password. After you clear the password, the  
User Password item on top of the screen shows Not Installed.  
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Chapter 2: BIOS setup  
2.4  
Ai Tweaker menu  
The Ai Tweaker menu items allow you to configure overclocking-related items.  
Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect field  
values can cause the system to malfunction.  
The configuration options for this section vary depending on the CPU and DIMM model you  
installed on the motherboard.  
Scroll down to display more items:  
Target CPU Speed : xxxxMHz  
Displays the current CPU speed.  
Target DRAM Speed : xxxxMHz  
Displays the current DRAM speed.  
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ASUS F1A55-M LE R2.0  
 
2.4.1  
Ai Overclock Tuner [Auto]  
Allows you to select the CPU overclocking options to achieve the desired CPU internal  
frequency. Select any of these preset overclocking configuration options:  
[Auto]  
Loads the optimal settings for the system.  
[Manual]  
[D.O.C.P.]  
Allows you to individually set overclocking parameters.  
Allows you to select a DRAM O.C. profile, and the related parameters will  
be adjusted automatically.  
APU Frequency [XXX]  
This item appears only when you set the Ai Overclock Tuner item to [Manual]. Use the <+>  
and <-> keys to adjust the value. You can also key in the desired value using the numeric  
keypad. The values range from 90.0MHz to 300.0MHz.  
DRAM O.C. Profile [DDR3-1600MHz 9-9-9-24 1.65V]  
This item appears only when you set the Ai Overclock Tuner item to [D.O.C.P.]. and allows  
you to select a DRAM O.C. profile, which applies different settings to DRAM frequency,  
DRAM timing and DRAM voltage. Configuration options: [DDR3-1600MHz 9-9-9-24 1.65V]  
[DDR3-1800MHz 9-9-9-24 1.65V] [DDR3-1866MHz 9-9-9-24 1.65V] [DDR3-2000MHz 9-9-  
9-24 1.65V] [DDR3-2133MHz 9-9-9-24 1.65V] [DDR3-2200MHz 9-9-9-24 1.65V] [DDR3-  
2400MHz 9-9-9-24 1.65V]  
2.4.2  
Memory Frequency [Auto]  
Allows you to set the memory operating frequency. Configuration options: [Auto]  
[DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz] [DDR3-1600MHz] [DDR3-1866MHz]  
Selecting a very high memory frequency may cause the system to become unstable! If this  
happens, revert to the default setting.  
2.4.3  
APU Multiplier [Auto]  
Allows you to set the multiplier between the CPU Core Clock and the FSB Frequency. Use  
the <+> and <-> keys to adjust the ratio. The valid value ranges vary according to your CPU  
model.  
2.4.4  
EPU Power Saving Mode [Disabled]  
Allows you to enable or disable the EPU power saving function.  
Configuration options: [Disabled] [Enabled]  
EPU Setting [Auto]  
This item appears only when The EPU Power Saving Mode is set to [Enabled] and  
allows you to set power saving mode. Configuration options: [Auto] [Light Power  
Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode]  
2.4.5  
OC Tuner  
OC Tuner automatically overclocks the frequency and voltage of CPU and DRAM for  
enhancing the system performance. Press <Enter> and select OK to start automatic  
overclocking.  
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Chapter 2: BIOS setup  
 
2.4.6  
DRAM Timing Control  
The sub-items in this menu allow you to set the DRAM timing control features. Use the <+>  
and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard  
and press <Enter>.  
Changing the values in this menu may cause the system to become unstable! If this  
happens, revert to the default settings.  
2.4.7  
Hybrid DIGI+VRM  
Load-line Calibration [Auto]  
Load-line is defined by AMD VRM specifications, and affects CPU voltage. The CPU  
working voltage will decrease proportionally to CPU loading. Higher load-line calibration  
would get higher voltage and better overclocking performance, but increases the CPU and  
VRM thermal conditions. This item allows you to adjust the voltage range from the following  
percentages to boost the system performance: 0% (Regular), 25% (Medium), 50% (High),  
75% (Ultra High) and 100% (Extreme). Configuration options: [Auto] [Regular] [Medium]  
[High] [Ultra High] [Extreme]  
The actual performance boost may vary depending on your CPU specification.  
CPU/NB Load-Line Calibration [Auto]  
Load-line is defined by AMD VRM spec and affects CPU voltage. The CPU working voltage  
will decrease proportionally to CPU loading. Higher value gets a higher voltage and better  
overclocking performance, but increases the CPU and VRM thermal. This item allows you to  
set this function for better system performance. Configuration options: [Auto] [Regular] [High]  
[Extreme]  
The actual performance boost may vary depending on your CPU specification.  
VRM Fixed Frequency Mode [xxx]  
Frequency switching affects the VRM transient response and the thermal component. Higher  
frequency gets quicker transient response. Use the <+> and <-> keys to adjust the value. The  
values range from 250k Hz to 400k Hz with a 50k Hz interval.  
CPU Power Phase Control [Standard]  
Allows you to control the power phase based on the CPU’s demands. Configuration options:  
[Standard] [Optimized] [Extreme] [Manual Adjustment]  
DO NOT remove the thermal module when switching to Extreme and Manual Adjustment.  
The thermal conditions should be monitored.  
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ASUS F1A55-M LE R2.0  
 
2.4.8  
CPU Voltage [Offset Mode]  
[Offset Mode]  
To offset the voltage by a positive or negative value.  
CPU Offset Mode Sign [+]  
[+]  
[–]  
To offset the voltage by a positive value.  
To offset the voltage by a negative value.  
CPU Offset Voltage [Auto]  
Allows you to set the CPU Offset voltage. The values range from 0.000V to 0.500V  
with a 0.003125V interval.  
Refer to the CPU documentation before setting the CPU voltage. Setting a high voltage  
may damage the CPU permanently, and setting a low voltage may make the system  
unstable.  
2.4.9  
[+]  
VDDNB Offset Mode Sign [+]  
To offset the voltage by a positive value.  
To offset the voltage by a negative value.  
[–]  
VDDNB Offset Voltage [Auto]  
Allows you to set the VDDNB Offset voltage. The values range from 0.000V to 0.500V  
with a 0.003125V interval.  
2.4.10  
DRAM Voltage [Auto]  
Allows you to set the DRAM voltage. The values range from 1.35V to 2.30V with a 0.01V  
interval.  
According to Intel CPU specification, DIMMs with voltage requirement over 1.65V may  
damage the CPU permanently. We recommend you install the DIMMs with the voltage  
requirement below 1.65V.  
2.4.11  
SB 1.1V Voltage [Auto]  
Allows you to set the Southbridge 1.1V voltage. The values range from 1.1V to 1.4V with a  
0.01V interval.  
2.4.12  
1.1Vsb Voltage [Auto]  
Allows you to set the 1.1Vsb voltage. The values range from 1.1000V to 1.2000V with a 0.1V  
interval.  
2.4.13  
APU1.2V Voltage [Auto]  
Allows you to set the APU (Accelerated Processor Unit) 1.2V voltage. The values range from  
1.2000V to 1.8000V with a 0.01V interval.  
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Chapter 2: BIOS setup  
 
2.4.14  
VDDA Voltage [Auto]  
Allows you to set the VDDA voltage. The values range from 2.5000V to 2.8000V with a 0.1V  
interval.  
The values of the CPU Offset Voltage, VDDNB Offset Voltage, DRAM Voltage,  
SB 1.1V Voltage, 1.1Vsb Voltage, APU1.2V Voltage, and VDDA Voltage items are  
labeled in different color, indicating the risk levels of high voltage settings.  
The system may need better cooling system to work stably under high voltage  
settings.  
2.4.15  
[Auto]  
APU Spread Spectrum [Auto]  
Automatic configuration.  
[Disabled]  
[Enabled]  
Enhances the PCIE overclocking ability.  
Sets to [Enabled] for EMI control.  
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ASUS F1A55-M LE R2.0  
 
2.5  
Advanced menu  
The Advanced menu items allow you to change the settings for the CPU and other system  
devices.  
Be cautious when changing the settings of the Advanced menu items. Incorrect field values  
can cause the system to malfunction.  
2.5.1  
CPU Configuration  
The items in this menu show the CPU-related information that the BIOS automatically  
detects.  
The items shown in submenu may be different due to the CPU you installed.  
Limit CPUID Maximum [Disabled]  
[Enabled]  
Allows legacy operating systems to boot even without support for CPUs  
with extended CPUID functions.  
[Disabled]  
Disables this function.  
C6 Mode [Auto]  
Enables or disables C6 mode. Configuration options: [Auto] [Enabled] [Disabled]  
CPB Mode [Auto]  
Disables the CPB (Core Performance Boost) mode or set it to [Auto] for automatic  
configuration. Configuration options: [Disabled] [Auto]  
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Chapter 2: BIOS setup  
 
AMD PowerNow function [Enabled]  
Enables or disables the AMD PowerNow function. Configuration options: [Enabled] [Disabled]  
SVM [Enabled]  
Enables or disables CPU virtualization. Configuration options: [Disabled] [Enabled]  
C-state Pmin  
Enables or disables C-State Pmin. Configuration options: [Disabled] [Enabled]  
2.5.2  
SATA Configuration  
While entering Setup, the BIOS automatically detects the presence of SATA devices. The  
SATA Port items show Not Present if no SATA device is installed to the corresponding SATA  
port.  
OnChip SATA Channel [Enabled]  
Enables or disables onboard channel SATA port. Configuration options: [Disabled] [Enabled]  
OnChip SATA Type [IDE]  
Allows you to set the SATA configuration.  
[IDE]  
Set to [IDE] when you want to use the Serial ATA hard disk drives as  
Parallel ATA physical storage devices.  
[RAID]  
[AHCI]  
Set to [RAID] when you want to create a RAID configuration from the SATA  
hard disk drives.  
Set to [AHCI] when you want the SATA hard disk drives to use the AHCI  
(Advanced Host Controller Interface). 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.  
SATA Port 5 - Port 6 [AHCI or RAID]  
This item only appears when the previous item is set to [RAID] or [AHCI]. If Port 5-6  
are configured as [AHCI or RAID], the ports can only be used under OS with driver  
installed. Set to [IDE] instead of [AHCI or RAID] to access devices on Port 5-6 before  
entering OS. Configuration options: [AHCI or RAID] [IDE]  
Board SATA RAID ROM [RAID]  
This item only appears when the previous item is set to [RAID].  
Configuration options: [Disabled] [Legacy ROM] [UEFI Driver]  
S.M.A.R.T. Status Check [Enabled]  
S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When  
read/write of your hard disk errors occur, this feature allows the hard disk to report warning  
messages during the POST. Configuration options: [Enabled] [Disabled]  
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ASUS F1A55-M LE R2.0  
 
2.5.3  
USB Configuration  
The items in this menu allow you to change the USB-related features.  
The USB Devices item shows the auto-detected values. If no USB device is detected, the  
item shows None.  
Legacy USB Support [Enabled]  
[Enabled]  
[Disabled]  
[Auto]  
Enables the support for USB devices on legacy operating systems (OS).  
The USB devices can be used only for the BIOS setup program.  
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.  
EHCI Hand-off [Disabled]  
[Enabled]  
Enables the support for operating systems without an EHCI hand-off  
feature.  
[Disabled]  
Disables the function.  
2.5.4  
NB Configuration  
iGPU Multi-Monitor [Disabled]  
Allows you to enable the iGPU Multi-Monitor. For Lucid Virtu MVP function support, set this  
item to [Enabled] to empower both integrated and discrete graphics. iGPU shared system  
memory size is fixed in 64MB. Configuration options: [Disabled] [Enabled]  
Primary Video Device [PCIE / PCI Video]  
Selects the primary display device. Configuration options: [IGFX Video] [PCIE / PCI Video]  
Integrated Graphics [Auto]  
Enables the integrated graphics controller. Configuration options: [Auto] [Force]  
2.5.5  
Onboard Devices Configuration  
HD Audio Device [Enabled]  
[Enabled]  
Enables the High Definition Audio Controller.  
[Disabled]  
Disables the controller.  
The following two items appear only when you set the HD Audio Device item to [Enabled].  
Front Panel Type [HD]  
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.  
[HD]  
Sets the front panel audio connector (AAFP) mode to high definition audio.  
[AC97]  
Sets the front panel audio connector (AAFP) mode to legacy AC’97.  
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Chapter 2: BIOS setup  
 
SPDIF Out Type [SPDIF]  
[SPDIF]  
[HDMI]  
Sets to [SPDIF] for SPDIF audio output.  
Sets to [HDMI] for HDMI audio output.  
Realtek LAN Controller [Enabled]  
[Enabled]  
[Disabled]  
Enables the Realtek LAN controller.  
Disables the Realtek LAN controller.  
Realtek PXE OPROM [Disabled]  
This item appears only when you set the previous item to [Enabled] and allows you to enable  
or disable the Rom Help of the Realtek LAN controller.  
Configuration options: [Enabled] [Disabled]  
Serial Port Configuration [Enabled]  
The sub-items in this menu allow you to set the serial port configuration.  
Serial Port [Enabled]  
Allows you to enable or disable the serial port (COM).  
Configuration options: [Enabled] [Disabled]  
Change Settings [IO=3F8h; IRQ=4]  
Allows you to select the Serial Port base address.  
Configuration options: [IO=3F8h; IRQ=4] [IO=2F8h; IRQ=3] [IO=3E8h; IRQ=4]  
[IO=2E8h; IRQ=3]  
Parallel Port Configuration [Enabled]  
The sub-items in this menu allow you to set the parallel port configuration.  
Parallel Port [Enabled]  
Allows you to enable or disable the parallel port (LPT/LPTE).  
Configuration options: [Enabled] [Disabled]  
Change Settings [Auto]  
Allows you to select the Parallel Port base address.  
Configuration options: [IO=378h; IRQ=5] [IO=378h; IRQ=5,6,7,9,10,11,12]  
[IO=278h; IRQ=5,6,7,9,10,11,12]  
Device Mode [Auto]  
Allows you to set the Printer port mode.  
Configuration options: [Standard Parallel Port Mode] [EPP Mode] [ECP Mode] [EPP  
Mode & ECP Mode]  
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ASUS F1A55-M LE R2.0  
2.5.6  
APM  
Restore AC Power Loss [Power Off]  
[Power On]  
[Power Off]  
[Last State]  
The system goes into on state after an AC power loss.  
The system goes into off state after an AC power loss.  
The system goes into either off or on state, whatever the system state was  
before the AC power loss.  
Power On By PME [Disabled]  
[Disabled]  
[Enabled]  
Disables the PME to wake up by PCI/PCIE devices.  
Allows you to turn on the system through a PCI/PCIE LAN or modem card.  
This feature requires an ATX power supply that provides at least 1A on the  
+5VSB lead.  
Power On By Ring [Disabled]  
[Disabled]  
[Enabled]  
Disables Ring to generate a wake event.  
Enables Ring to generate a wake event.  
Power On By RTC [Disabled]  
[Disabled]  
[Enabled]  
Disables RTC to generate a wake event.  
When set to [Enabled], the items RTC Alarm Date (Days) and Hour/  
Minute/Second will become user-configurable with set values.  
2.5.7  
Network Stack  
Network Stack [Disabled]  
This item allows user to disable or enable the UEFI network stack.  
Configuration options: [Disabled] [Enabled]  
Ipv4 PXE Support [Enabled]  
This item appears only when you set the Network Stack item to [Enabled]. When this item is  
disabled, the IPV4 PXE boot option will not be created.  
Configuration options: [Disabled] [Enabled]  
Ipv6 PXE Support [Enabled]  
This item appears only when you set the Network Stack item to [Enabled]. When this item is  
disabled, the IPV6 PXE boot option will not be created.  
Configuration options: [Disabled] [Enabled]  
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Chapter 2: BIOS setup  
 
2.6  
Monitor menu  
The Monitor menu displays the system temperature/power status, and allows you to change  
the fan settings.  
2.6.1  
CPU Temperature / MB Temperature [xxxºC/xxxºF]  
The onboard hardware monitor automatically detects and displays the CPU and motherboard  
temperatures. Select Ignore if you do not wish to display the detected temperatures.  
2.6.2  
CPU / Chassis / Power Fan Speed [xxxx RPM] or  
[Ignore] / [N/A]  
The onboard hardware monitor automatically detects and displays the CPU / chassis / Power  
fan speeds in rotations per minute (RPM). If the fan is not connected to the motherboard, the  
field shows N/A. Select Ignore if you do not wish to display the detected speed.  
2.6.3  
[Disabled]  
CPU Q-Fan Control [Enabled]  
Disables the CPU Q-Fan control feature.  
Enables the CPU Q-Fan control feature.  
[Enabled]  
CPU Fan Speed Low Limit [600 RPM]  
This item appears only when you enable the CPU Q-Fan Control feature and allows  
you to disable or set the CPU fan warning speed.  
Configuration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]  
2-23  
ASUS F1A55-M LE R2.0  
 
CPU Fan Profile [Standard]  
This item appears only when you enable the CPU Q-Fan Control feature and allows  
you to set the appropriate performance level of the CPU fan.  
[Standard]  
Sets to [Standard] to make the CPU fan automatically adjust  
depending on the CPU temperature.  
[Silent]  
[Turbo]  
[Manual]  
Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.  
Sets to [Turbo] to achieve maximum CPU fan speed.  
Sets to [Manual] to assign detailed fan speed control parameters.  
The following four items appear only when you set CPU Fan Profile to [Manual].  
CPU Upper Temperature [70ºC]  
Use the <+> and <-> keys to adjust the upper limit of the CPU temperature.  
The values range from 20ºC to 90ºC.  
CPU Fan Max. Duty Cycle(%) [100%]  
Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The  
values range from 40% to 100%. When the CPU temperature reaches the  
upper limit, the CPU fan will operate at the maximum duty cycle.  
CPU Lower Temperature [20ºC]  
Use the <+> and <-> keys to adjust the lower limit of the CPU temperature.  
The values range from 20ºC to 75ºC.  
CPU Fan Min. Duty Cycle(%) [40%]  
Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The  
values range from 40% to 100%. When the CPU temperature is under the  
lower limit, the CPU fan will operate at the minimum duty cycle.  
2.6.4  
CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage  
The onboard hardware monitor automatically detects the voltage output through the onboard  
voltage regulators. Select Ignore if you do not want to detect this item.  
2.6.5  
Anti Surge Support [Enabled]  
This item allows you to enable or disable the Anti Surge function.  
Configuration options: [Disabled] [Enabled]  
2-24  
Chapter 2: BIOS setup  
 
2.7  
Boot menu  
The Boot menu items allow you to change the system boot options.  
2.7.1  
[On]  
Bootup NumLock State [On]  
Sets the power-on state of the NumLock to [On].  
[Off]  
Sets the power-on state of the NumLock to [Off].  
2.7.2  
[Enabled]  
Full Screen Logo [Enabled]  
Enables the full screen logo display feature.  
Disables the full screen logo display feature.  
[Disabled]  
Set this item to [Enabled] to use the ASUS MyLogo 2™ feature.  
Post Report [5 sec]  
This item appears only when the Full Screen Logo item is set to [Disabled] and allows you to  
set the waiting time for the system to display the post report. Configuration options: [1 sec] [2  
sec] [3 sec] [4 sec] [5 sec] [6 sec] [7 sec] [8 sec] [9 sec] [10 sec] [Until Press ESC]  
2.7.3  
Wait for ‘F1’ If Error [Enabled]  
When this item is set to [Enabled], the system waits for the F1 key to be pressed when error  
occurs. Configuration options: [Disabled] [Enabled]  
2-25  
ASUS F1A55-M LE R2.0  
 
2.7.4  
Option ROM Messages [Force BIOS]  
[Force BIOS]  
The third-party ROM messages will be forced to display during the boot  
sequence.  
[Keep Current] The third-party ROM messages will be displayed only if the third-party  
manufacturer had set the add-on device to do so.  
2.7.5  
Setup Mode [EZ Mode]  
[Advanced Mode] Sets Advanced Mode as the default screen for entering the BIOS setup  
program.  
[EZ Mode]  
Sets EZ Mode as the default screen for entering the BIOS setup program.  
2.7.6  
UEFI Legacy Boot  
Enables or disables the booting function of UEFI or legacy devices.  
Configuration options: [Enabled both UEFI and Legacy] [Disabled UEFI] [Disabled Legacy]  
2.7.7  
PCI ROM Priority  
In case of multiple option ROMs (Legacy and EFI compatible), this item allows you to specifie  
what PCI option ROM to launch. Configuration options: [Legacy ROM] [EFI Compatible ROM]  
2.7.8  
Boot Option Priorities  
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.  
To select the boot device during system startup, press <F8> when ASUS Logo  
appears.  
To access Windows OS in Safe Mode, press <F8> after POST.  
2.7.9  
Boot Override  
These items displays the available devices. The number of device items that appears on  
the screen depends on the number of devices installed in the system. Click an item to start  
booting from the selected device.  
2-26  
Chapter 2: BIOS setup  
 
2.8  
Tools menu  
The Tools menu items allow you to configure options for special functions. Select an item  
then press <Enter> to display the submenu.  
2.8.1  
ASUS EZ Flash 2 Utility  
Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen.  
For more details, see section 2.1.2 ASUS EZ Flash 2.  
2.8.2  
ASUS O.C. Profile  
This item allows you to store or load multiple BIOS settings.  
The Setup Profile Status items show Not Installed if no profile is created.  
Save to Profile  
Allows you to save the current BIOS settings to the BIOS Flash, and create a profile. Key in a  
profile number from one to eight, press <Enter>, and then select Yes.  
Load from Profile  
Allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the profile  
number that saved your CMOS settings, press <Enter>, and then select Yes.  
DO NOT shut down or reset the system while updating the BIOS to prevent the  
system boot failure!  
We recommend that you update the BIOS file only coming from the same memory/  
CPU configuration and BIOS version.  
2.8.3  
ASUS SPD Information  
DIMM Slot # [DIMM_A1]  
Displays the Serial Presence Detect (SPD) information of the DIMM module installed on the  
selected slot. Configuration options: [DIMM_A1] [DIMM_B1]  
2-27  
ASUS F1A55-M LE R2.0  
 
2.9  
Exit menu  
The Exit menu items allow you to load the optimal default values for the BIOS items, and  
save or discard your changes to the BIOS items. You can access the EZ Mode from the Exit  
menu.  
Load Optimized 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 Yes to load the default values.  
Save Changes & Reset  
Once you are finished making your selections, choose this option from the Exit menu to  
ensure the values you selected are saved. When you select this option or if you press <F10>,  
a confirmation window appears. Select Yes to save changes and exit.  
Discard Changes & Exit  
This option allows you to exit the Setup program without saving your changes. When you  
select this option or if you press <Esc>, a confirmation window appears. Select Yes to discard  
changes and exit.  
ASUS EZ Mode  
This option allows you to enter the EZ Mode screen.  
Launch EFI Shell from filesystem device  
This option allows you to attempt to launch the UEFI Shell application (shellx64.efi) from one  
of the available devices that have a filesystem.  
2-28  
Chapter 2: BIOS setup  
 
Appendices  
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.  
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.  
A-1  
ASUS F1A55-M LE R2.0  
 
IC: Canadian Compliance Statement  
Complies with the Canadian ICES-003 Class B specifications. This device complies with RSS  
210 of Industry Canada. This Class B device meets all the requirements of the Canadian  
interference-causing equipment regulations.  
This device complies with Industry Canada license exempt RSS standard(s). Operation is  
subject to the following two conditions: (1) this device may not cause interference, and (2)  
this device must accept any interference, including interference that may cause undesired  
operation of the device.  
Cut appareil numérique de la Classe B est conforme à la norme NMB-003 du Canada.  
Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le  
matériel brouilleur du Canada.  
Cet appareil est conforme aux normes CNR exemptes de licence d’Industrie Canada. Le  
fonctionnement est soumis aux deux conditions suivantes :  
(1) cet appareil ne doit pas provoquer d’interférences et  
(2) cet appareil doit accepter toute interférence, y compris celles susceptibles de provoquer  
un fonctionnement non souhaité de l’appareil.  
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.  
VCCI: Japan Compliance Statement  
VCCI Class B Statement  
KC: Korea Warning Statement  
A-2  
Appendices  
REACH  
Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of  
Chemicals) regulatory framework, we published the chemical substances in our products at  
DO NOT throw the motherboard in municipal waste. This product has been designed to  
enable proper reuse of parts and recycling. This symbol of the crossed out wheeled bin  
indicates that the product (electrical and electronic equipment) should not be placed in  
municipal waste. Check local regulations for disposal of electronic products.  
DO NOT throw the mercury-containing button cell battery in municipal waste. This symbol  
of the crossed out wheeled bin indicates that the battery should not be placed in municipal  
waste.  
ASUS Recycling/Takeback Services  
ASUS recycling and takeback programs come from our commitment to the highest standards  
for protecting our environment. We believe in providing solutions for you to be able to  
responsibly recycle our products, batteries, other components as well as the packaging  
materials. Please go to http://csr.asus.com/english/Takeback.htm for detailed recycling  
information in different regions.  
A-3  
ASUS F1A55-M LE R2.0  
ASUS contact information  
ASUSTeK COMPUTER INC.  
Address  
Telephone  
Fax  
E-mail  
Web site  
15 Li-Te Road, Peitou, Taipei, Taiwan 11259  
+886-2-2894-3447  
+886-2-2890-7798  
Technical Support  
Telephone  
Online support  
+86-21-38429911  
support.asus.com  
ASUS COMPUTER INTERNATIONAL (America)  
Address  
Telephone  
Fax  
800 Corporate Way, Fremont, CA 94539, USA  
+1-812-282-3777  
+1-510-608-4555  
usa.asus.com  
Web site  
Technical Support  
Telephone  
Support fax  
+1-812-282-2787  
+1-812-284-0883  
support.asus.com  
Online support  
ASUS COMPUTER GmbH (Germany and Austria)  
Address  
Fax  
Harkort Str. 21-23, D-40880 Ratingen, Germany  
+49-2102-959911  
Web site  
Online contact  
Technical Support  
Telephone  
Support Fax  
+49-1805-010923*  
+49-2102-9599-11  
support.asus.com  
Online support  
* EUR 0.14/minute from a German fixed landline; EUR 0.42/minute from a mobile phone.  
Manufacturer:  
Address:  
ASUSTeK Computer Inc.  
4F, No.150, LI-TE RD., PEITOU, TAIPEI 112,  
TAIWAN, R.O.C.  
Authorised representative in  
Europe:  
ASUS Computer GmbH  
Address:  
HARKORT STR. 21-23, 40880 RATINGEN,  
GERMANY  
A-4  
Appendices  
 
A-5  
ASUS F1A55-M LE R2.0  

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