ASUS F1A55-M LE User Manual

F1A55-M LE R2.0

Motherboard

E8030
First Edition

January 2013

Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,
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such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the

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ii

Contents

Safety information ...................................................................................................... vi

About this guide ........................................................................................................ vii

F1A55-M LE R2.0 specications summary .............................................................. ix

Package contents ...................................................................................................... xii

Product introduction 1-1

1.1 Special features..........................................................................................1-1

1.1.1 Product highlights

1.1.2 ASUS Hybrid DIGI+ VRM ...........................................................

1.1.3 ASUS Exclusive features ............................................................

1.2 Before you proceed ...................................................................................

1.3 Motherboard overview ...............................................................................

1.3.1 Placement direction

1.3.2 Screw holes

1.3.3 Motherboard layout .....................................................................

1.3.4 Layout contents ...........................................................................

1.4 Accelerated Processing Unit (CPU) .........................................................

1.4.1 Installing the APU ........................................................................

1.4.2 APU heatsink and fan assembly installation ...............................

1.5 System memory .......................................................................................

1.5.1 Overview ...................................................................................

1.5.2 Memory congurations ..............................................................

1.5.3 Installing a DIMM ......................................................................

1.6 Expansion slots

1.6.1 Installing an expansion card

1.6.2 Conguring an expansion card .................................................

1.6.3 PCI slot

1.6.4 PCI Express x1 slot ...................................................................

1.6.5 PCI Express x16 slots ...............................................................

1.7 Jumpers ....................................................................................................

1.8 Connectors ...............................................................................................

1.8.1 Rear panel connectors ..............................................................

1.8.2 Internal connectors

1.9 Software support

1.9.1 Installing an operating system

1.9.2 Support DVD information ..........................................................

........................................................................................ 1-21

...................................................................................... 1-22

...................................................................................... 1-33

........................................................................ 1-1

..................................................................... 1-5

................................................................................. 1-5

...................................................... 1-21

.................................................................... 1-26

................................................... 1-33

1-1

1-2

1-4

1-5

1-6

1-7

1-8

1-8

1-9

1-11

1-11

1-12

1-20

1-21

1-22

1-22

1-23

1-24

1-24

1-33

iii

BIOS setup

2.1 Managing and updating your BIOS ..........................................................2-1

2.1.1 ASUS Update utility

2.1.2 ASUS EZ Flash 2 ........................................................................

2.1.3 ASUS CrashFree BIOS 3 utility

2.1.4 ASUS BIOS Updater ...................................................................

2.2 BIOS setup program ..................................................................................

BIOS menu screen ....................................................................................... 2-8

2.3 Main menu ................................................................................................

2.3.1 System Language [English] ......................................................

2.3.2 System Date [Day xx/xx/xxxx] ...................................................

2.3.3 System Time [xx:xx:xx]

2.3.4 Security .....................................................................................

2.4 Ai Tweaker menu ......................................................................................

2.4.1 Ai Overclock Tuner [Auto] .........................................................

2.4.2 Memory Frequency [Auto] .........................................................

2.4.3 APU Multiplier [Auto] .................................................................

2.4.4 EPU Power Saving Mode [Disabled]

2.4.5 OC Tuner

2.4.6 DRAM Timing Control ...............................................................

2.4.7 Hybrid DIGI+VRM .....................................................................

2.4.8 CPU Voltage [Offset Mode] .......................................................

2.4.9 VDDNB Offset Mode Sign [+] ....................................................

2.4.10 DRAM Voltage [Auto] ................................................................

2.4.11 SB 1.1V Voltage [Auto]

2.4.12 1.1Vsb Voltage [Auto]

2.4.13 APU1.2V Voltage [Auto] ............................................................

2.4.14 VDDA Voltage [Auto] .................................................................

2.4.15 APU Spread Spectrum [Auto] ...................................................

2.5 Advanced menu .......................................................................................

2.5.1 CPU Conguration ....................................................................

2.5.2 SATA Conguration ...................................................................

2.5.3 USB Conguration ....................................................................

2.5.4 NB Conguration .......................................................................

2.5.5 Onboard Devices Conguration ................................................

2.5.6 APM ..........................................................................................

2.5.7 Network Stack ...........................................................................

................................................................................... 2-14

..................................................................... 2-1

2-2

................................................... 2-3

2-4

2-7

2-11

2-11

2-11

.............................................................. 2-11

2-11

2-13

2-14

2-14

2-14

......................................... 2-14

2-15

2-15

2-16

2-16

2-16

.............................................................. 2-16

................................................................ 2-16

2-16

2-17

2-17

2-18

2-18

2-19

2-20

2-20

2-20

2-22

2-22

iv

2.6 Monitor menu ...........................................................................................2-23

2.6.1 CPU Temperature / MB Temperature

2.6.2 CPU / Chassis / Power

2.6.3 CPU Q-Fan Control [Enabled]

2.6.4 CPU Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage ..............

2.6.5 Anti Surge Support [Enabled]

2.7 Boot menu ................................................................................................

2.7.1 Bootup NumLock State [On] .....................................................

2.7.2 Full Screen Logo [Enabled] .......................................................

2.7.3 Wait for ‘F1’ If Error [Enabled] ...................................................

2.7.4 Option ROM Messages [Force BIOS] .......................................

2.7.5 Setup Mode [EZ Mode] .............................................................

2.7.6 UEFI Legacy Boot .....................................................................

2.7.7 PCI ROM Priority

2.7.8 Boot Option Priorities ................................................................

2.7.9 Boot Override ............................................................................

2.8 Tools menu ...............................................................................................

2.8.1 ASUS EZ Flash 2 Utility ............................................................

2.8.2 ASUS O.C. Prole .....................................................................

2.8.3 ASUS SPD Information .............................................................

2.9 Exit menu ..................................................................................................

Fan Speed ........................................... 2-23

....................................................................... 2-26

[xxxºC/xxxºF] ..................2-23

................................................... 2-23

2-24

.................................................... 2-24

2-25

2-25

2-25

2-25

2-26

2-26

2-26

2-26

2-26

2-27

2-27

2-27

2-27

2-28

Appendices

Notices .................................................................................................................... A-1

ASUS contact information ...................................................................................... A-4

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 x it by yourself. Contact a qualied 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 qualied service

•
technician or your retailer.

vi

About this guide

This user guide contains the information you need when installing and conguring 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 nd more information

Refer to the following sources for additional information and for product and software
updates.

1. ASUS websites

The ASUS website provides updated information on ASUS hardware and software
products. Refer to the ASUS contact information.

2. Optional documentation

Your product package may include optional documentation, such as warranty yers,

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 Indicates a menu or an item to select.

Italics

<Key> Keys enclosed in the less-than and greater-than sign

<Key1> + <Key2> + <Key3> If you must press two or more keys simultaneously, the key

Used to emphasize a word or a phrase.

means that you must press the enclosed key.

Example: <Enter> means that you must press the Enter or
Return key.

names are linked with a plus sign (+).

viii

F1A55-M LE R2.0 specications 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.

• Refer to www.asus.com for the AMD® CPU support list

Chipset AMD® A55 FCH (Hudson D2)

Memory 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.

• Refer to www.asus.com for the latest Memory QVL (Qualied Vendors List).

• When you install a total memory of 4GB capacity or more, Windows
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.

®

32-bit

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

• Refer to www.amd.com for the discrete GPUs that support Dual Graphics.

Multi-GPU support Supports LucidLogix Virtu MVP Technology

• LucidLogix Virtu MVP supports Windows® 7 operating system.

Expansion slots 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

Storage

AMD® A55 FCH southbridge

- 6 x Serial ATA 3.0Gb/s connectors support RAID 0, RAID 1, RAID 10,

and JBOD congurations

LAN

Realtek® 8111E/F Gigabit LAN controller

Audio Realtek ALC887 3-jack 8-channel High Denition Audio CODEC

- Supports jack-detection,multi-streaming, and front panel jack retasking

USB

AMD® A55 FCH southbridge

- 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 specications 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-denition 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 specications summary

BIOS features 64Mb Flash ROM, UEFI BIOS, PnP, DMI 2.0, WfM 2.0, ACPI 2.0a, SM

Accessories 2 x Serial ATA 3.0Gb/s cables

Support DVD Drivers

Form factor

Specications are subject to change without notice.

BIOS 2.6

1 x I/O shield

1 x User Manual

1 x Support DVD

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)

xi

Package contents

F1A55-M LE R2.0

User Manual

Check your motherboard package for the following items.

ASUS F1A55-M LE R2.0 motherboard 2 x Serial ATA 3.0 Gb/s cables

1 x I/O-Shield User Guide Support DVD

xii

• If any of the above items is damaged or missing, contact your retailer.

• The illustrated items above are for reference only. Actual product specications may

vary with different models.

Product introduction

1

1.1 Special features

1.1.1 Product highlights

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-efcient

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 ltering, shading, and texture settings. Adjust your display
congurations, 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-dened proles. It also offers a broad range of adjustable power
options to create more headroom for exible system tuning.

* Hybrid DIGI+ VRM functions are also available in FM1 socket compatible CPUs.

EPU

EPU (Energy Processing Unit), the world’s rst 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.

ASUS F1A55-M LE R2.0

1-1

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 rst mouse-controlled intuitive

graphical BIOS interface that goes beyond the traditional keyboard-only BIOS controls,

providing you with more exibility, 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 difcult 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

proles 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 congure 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 oppy 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

le using the bundled support DVD or a USB ash disk that contains the BIOS le.

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 efciency requirements in regards to energy

consumptions. This is in line with ASUS vision of creating environment-friendly and energy-

efcient products through product design and innovation to reduce carbon footprint of the

product and thus mitigate environmental impacts.

ASUS F1A55-M LE R2.0

1-3

1.2 Before you proceed

F1A55-M LE R2.0

SB_PWR

ON

Standby Power Powered Off

OFF

F1A55-M LE R2.0 Onboard LED

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.

1-4

Chapter 1: Product introduction

F1A55-M LE R2.0

1.3 Motherboard overview

Before you install the motherboard, study the conguration of your chassis to ensure that the
motherboard ts 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

ASUS F1A55-M LE R2.0

1-5

F1A55-M LE R2.0

PCIEX16_1

PCIEX16_2

PCIEX1_1

PCI1

USB910 USB78 USB56

SPDIF_OUT

ALC887

AAFP

CPU_FAN

PWR_FAN

CHA_FAN

Lithium Cell

CMOS Power

Super

I/O

AUDIO

EPU

RTL

8111E

ICS483A

COM1

KBMS

64Mb
BIOS

SB_PWR

CLRTC

22.9cm(9.0in)

24.4cm(9.6in)

AMD

®

A55

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

LAN1_USB12

USB3_12

USB34

DVI_VGA

SOCKET FM1

EATXPWR

ATX12V

SATA6G_4

SATA6G_6

SATA6G_5

SATA6G_3

SATA6G_2

SATA6G_1

LPT

F_PANEL

SPEAKER

1 432 2

5

1

5

7

1314 10 891112

6

1.3.3 Motherboard layout

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
and 3-pin CHA_FAN)

3. AMD FM1 socket 1-8

4. DDR3 DIMM slots 1-11

5. SATA 3.0Gb/s connectors (7-pin SATA3G_1~6) 1-22

6. Clear RTC RAM (3-pin CLRTC) 1-17

7. Standby power LED (SB_PWR) 1-4

8. System panel connector (10-1 pin F_PANEL) 1-24

9. Speaker connector (4-pin SPEAKER) 1-20

10. USB 2.0 connectors (10-1 pin USB56, USB78, USB910) 1-26

11. Digital audio connector (4-1 pin SPDIF_OUT) 1-25

12. LPT connector (26-1 pin LPT) 1-24

13. Front panel audio connector (10-1 pin AAFP) 1-25

14. Serial port connector (10-1 pin COM1) 1-23

1-20

ASUS F1A55-M LE R2.0

1-7

1.4 Accelerated Processing Unit (CPU)

F1A55-M LE R2.0

F1A55-M LE R2.0 CPU socket FM1

The motherboard comes with an FM1 socket designed for AMD® A- & E2-series accelerated
processors with AMD® Radeon HD 6000 series graphics.

1.4.1 Installing the APU

Ensure that you use a CPU designed for the FM2 socket. The APU ts 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

3

4

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

ASUS F1A55-M LE R2.0

2

1-9

To uninstall the APU heatsink and fan assembly

53 4

1

3

2

4

1-10

Chapter 1: Product introduction

5

F1A55-M LE R2.0

F1A55-M LE R2.0 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_B1

1.5 System memory

1.5.1 Overview

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 gure illustrates the location of the DDR3 DIMM sockets:

ASUS F1A55-M LE R2.0

Channel Sockets

Channel A DIMM_A1

Channel B DIMM_B1

1-11

1.5.2 Memory congurations

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 prole 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 conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.

• According to Intel CPU specication, 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
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

• 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.

®

OS, when you install 4GB

®

OS

1-12

• 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 efcient memory cooling system to support a full

memory load (2 DIMMs) or overclocking condition.

Chapter 1: Product introduction

F1A55-M LE R2.0 Series Motherboard Qualied Vendors Lists (QVL)

• SS: Single-sided / DS: Double-sided

• DIMM support:

•

1 DIMM: Supports one module inserted into either slot as single-channel memory

conguration.

•

2 DIMMs: Supports one pair of modules inserted into both the blue slots as one

pair of dual-channel memory conguration.

• 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.

• Visit the ASUS website at

www.asus.com for the latest QVL.

F1A55-M LE R2.0 Series Motherboard Qualied Vendors Lists (QVL)

DDR3-2250 (O.C.) MHz capability

Vendors Part No. Size

KINGSTON KHX2250C9D3T1K2/4GX(XMP) 4GB ( 2x 2GB ) DS - - - 1.65V • •

SS/DSChip

Brand

Chip NO. Timing Voltage

DIMM socket
support (Optional)

1 DIMM 2 DIMMs

DDR3-2000 (O.C.) MHz capability

Vendors Part No. Size SS/DSChip

Apacer 78.AAGD5.9KD(XMP) 6GB(

CORSAIR CMT6GX3M3A

G.SKILL F3-16000CL9D-4GB

G.SKILL F3-16000CL6T-6GB

GEIL GUP34GB2000

KINGSTON KHX2000C9AD3

KINGSTON KHX2000C9AD3

KINGSTON KHX2000C9AD3

KINGSTON KHX2000C9AD3

KINGSTON KHX2000C9AD3

OCZ OCZ3XTEP200

Transcend TX2000KLN-8GK(XMP) 8GB

PATRIOT PVT36G2000LLK 6GB

2000C8(XMP)

FLS(XMP)

PIS(XMP)

C9DC(XMP)

T1K2/4GX(XMP)

W1K2/4GX(XMP)

T1K2/4GX(XMP)

W1K3/6GX(XMP)

T1K3/6GX(XMP)

0C9LV4GK

3 x 2GB)

6GB
(3 x 2GB)

4GB
(2 x 2GB)

6GB
(3x 2GB )

4GB
(2 x 2GB)

4GB
( 2x 2GB )

4GB
( 2x 2GB )

4GB
(2 x 2GB)

6GB
( 3x 2GB )

6GB
(3x 2GB )

4GB
(2 x 2GB)

(2 x 4GB)

(3 x 2GB)

DS

DS

DS

DS

DS

DS

DS

DS

DS

DS

DS

DS

DS

Brand

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

Chip

Timing Voltage DIMM socket

No.

9-9-9-27 1.65V • •

8-9-8-24 1.65V • •

9-9-9-24 1.65V • •

6-9-6-24 1.65V • •

9-9-9-28 1.65V • •

- 1.65V • •

- 1.65V • •

9 1.65V • •

- 1.65V • •

- 1.65V • •

9-9-9-24 1.65V • •

- 1.6V • •

8-8-8-24 1.65V • •

support (Optional)

1 DIMM 2 DIMM

ASUS F1A55-M LE R2.0

1-13

DDR3-1866 MHz capability

Vendors Part No. Size SS/DSChip

CORSAIR CMT4GX3M2A

CORSAIR CMT6GX3MA

CORSAIR CMZ8GX3M2A

G.SKILL F3-14900CL9D-8G

KINGSTON KHX1866C9D3T1

KINGSTON KHX1866C9D3T

OCZ OCZ3G1866

OCZ OCZ3P1866C9

1866C9(XMP)

1866C9(XMP)

1866C9(XMP)

BXL(XMP)

K3/3GX(XMP)

1K3/6GX(XMP)

LV4GK

LV6GK

4GB
(2 x 2GB)

6GB
(3 x 2GB)

8GB
(2 x 4GB)

8GB
(2 x 4GB)

3GB
(3 x 1GB)

6GB
(3 x 2GB)

4GB
(2 x 2GB)

6GB
(3 x 2GB)

DS - - 9-9-9-24 1.65V • •

DS - - 9-9-9-24 1.65V • •

DS - - 9-10-9-27 1.50V • •

DS - - 9-10-9-28 1.5V • •

SS - - - 1.65V • •

DS - - - 1.65V • •

DS - - 10-10-10-27 1.65V • •

DS - - 9-9-9-28 1.65V • •

DDR3-1600 MHz capability

Vendors Part No. Size SS/DS Chip

A-Data AX3U1600XB2

A-Data AX3U1600GC4

A-Data AX3U1600XC4

CORSAIR TR3X3G1600

CORSAIR CMD12GX3M6A

CORSAIR CMP4GX3M2C

CORSAIR CMX4GX3M2A

CORSAIR TR3X6G1600

CORSAIR TR3X6G1600

CORSAIR CMP8GX3M2A

CORSAIR CMX8GX3M4A

Crucial BL25664BN

G.SKILL F3-12800CL9D-

G79-2X(XMP)

G9-2G(XMP)

G79-2X(XMP)

C8D(XMP)

1600C8(XMP)

1600C7(XMP)

1600C9(XMP)

C8 G(XMP)

C8D G(XMP)

1600C9(XMP)

1600C9(XMP)

1608.16FF(XMP)

2GBNQ(XMP)

4GB(2 x 2GB) DS

8GB(2 x 4GB) DS

8GB(2 x 4GB) DS

3GB(3 x 1GB) SS

12GB(6x2GB) DS

4GB(2 x 2GB) DS

4GB(2 x 2GB) DS

6GB(3 x 2GB) DS

6GB(3 x 2GB) DS

8GB(2 x 4GB) DS

8GB(4 x 2GB) DS

6GB(3 x 2GB) DS

2GB(2 x 1GB) SS

(continued on the next page)

Brand

Brand

Chip
No.

Chip
No.

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

- -

Timing Voltage DIMM socket

Timing Voltage DIMM socket

7-9-7-21 1.55V-1.75V • •

9-9-9-24 1.55V-1.75V • •

7-9-7-21 1.55V-1.75V • •

8-8-8-24 1.65V • •

8-8-8-24 1.65V • •

7-8-7-20 1.65V • •

9-9-9-24 1.65V • •

8-8-8-24 1.65V • •

8-8-8-24 1.65V • •

9-9-9-24 1.65V • •

9-9-9-24 1.65V • •

- - • •

9-9-9-24 1.5V • •

support (Optional)

1 DIMM 2 DIMM

support (Optional)

1 DIMM 2 DIMM

1-14

Chapter 1: Product introduction

DDR3-1600 MHz capability

Vendors Part No. Size SS/DS Chip

G.SKILL F3-12800CL7D-4G

G.SKILL F3-12800CL7D-

G.SKILL F3-12800CL7D-

G.SKILL F3-12800CL8D-

G.SKILL F3-12800CL9D-

G.SKILL F3-12800CL9D-

G.SKILL F3-12800CL9T-

G.SKILL F3-12800CL7D-

G.SKILL F3-12800CL8D-

G.SKILL F3-12800CL9D-

GEIL GET316GB1600

GEIL GV34GB1600

Kingmax FLGE85F-B8KJ9A

KINGSTON KHX1600C9D3

KINGSTON KHX1600C9D3

KINGSTON KHX1600C9AD3/2G 2GB DS - - - 1.65V • •

KINGSTON KVR1600D3

KINGSTON KHX1600C7D3K2/

KINGSTON KHX1600C8D3K2/

KINGSTON KHX1600C8D3T1K2/

KINGSTON KHX1600C9D3K2/

KINGSTON KHX1600C9D3LK2/

KINGSTON KHX1600C9D3X2K2/

KINGSTON KHX1600C9D3T1K3/

KINGSTON KHX1600C9D3K3/

BRH(XMP)

4GBECO(XMP)

4GBRM(XMP)

4GBRM(XMP)

4GBECO(XMP)

4GBRL(XMP)

6GBNQ(XMP)

8GBRH(XMP)

8GBECO(XMP)

8GBRL(XMP)

C9QC(XMP)

C8DC(XMP)

FEIS(XMP)

K3/12GX(XMP)

T1BK3/12GX(XMP)

N11/2G-ES

4GX(XMP)

4GX(XMP)

4GX(XMP)

4GX(XMP)

4GX(XMP)

4GX(XMP)

6GX(XMP)

6GX(XMP)

4GB

SS - - 7-7-7-24 1.6V • •

(2 x 2GB)

4GB

DS - - 7-7-8-24 XMP

(2 x 2GB)

4GB

DS - - 7-8-7-24 1.6V • •

(2 x 2GB)

4GB

DS - - 8-8-8-24 1.60V • •

(2 x 2GB)

4GB

DS - - 9-9-9-24 XMP

(2 x 2GB)

4GB

DS - - 9-9-9-24 1.5V • •

(2 x 2GB)

6GB

DS - - 9-9-9-24 1.5V~

(3 x 2GB)

8GB

DS - - 7-8-7-24 1.6V • •

(2 x 4GB)

8GB

DS - - 8-8-8-24 XMP

(2 x 4GB)

8GB

DS - - 9-9-9-24 1.5V • •

(2 x 4GB)

16GB

DS - - 9-9-9-28 1.6V • •

( 4x 4GB )

2GB DS - - 8-8-8-28 1.6V • •

2GB DS - - - - • •

12GB

DS - - 9-9-9-27 1.65V • •

(3x4GB)

12GB

DS - - 9-9-9-27 1.65V • •

(3x4GB)

2GB DS KTC D1288JPN

4GB

DS - - - 1.65V • •

( 2x 2GB )

4GB

DS - - 8 1.65V • •

(2 x 2GB)

4GB

DS - - 8 1.65V • •

(2 x 2GB)

4GB

DS - - 9 1.65V • •

(2 x 2GB)

4GB

DS - - 9 XMP

(2 x 2GB)

4GB

DS - - 9-9-9-27 1.65V • •

(2 x 2GB)

6GB ( 3x

DS - - - 1.65V • •

2GB )

6GB(3 x

DS - - 9 1.65V • •

2GB)

Chip No. Timing Voltage DIMM socket

Brand

1.35V

1.35V

1.6V

1.35V

11-11-

DPLD9U

11-28

1.35V-

1.5V

1.35V

support (Optional)

1 DIMM 2 DIMM

• •

• •

• •

• •

• •

• •

(continued on the next page)

ASUS F1A55-M LE R2.0

1-15

DDR3-1600 MHz capability

Vendors Part No. Size SS/DS Chip

KINGSTON KHX1600C9D3

KINGSTON KHX1600C9D3K2/

OCZ OCZ3G1600LV3GK 3GB

OCZ OCZ3BE1600

OCZ OCZ3BE1600

OCZ OCZ3G1600

OCZ OCZ3OB1600

OCZ OCZ3G1600

Super Talent WA160UX6G9 6GB

T1BK3/6GX(XMP)

8GX(XMP)

C8LV4GK

LV4GK

4GK

LV4GK

LV6GK

6GB(
3 x 2GB)

8GB
(2 x 4GB)

(3 x 1GB)

4GB
(2 x 2GB)

4GB
(2 x 2GB)

4GB
(2 x 2GB)

4GB
(2 x 2GB)

6GB
(3 x 2GB)

(3 x 2GB)

DS - - 9-9-9-27 1.65V • •

DS - - 9-9-9-27 1.65V • •

SS - - 8-8-8-24 1.65V • •

DS - - 8-8-8-24 1.65V • •

DS - - 7-7-7-24 1.65V • •

DS - - 8-8-8-24 1.7V • •

DS - - - 1.65V • •

DS - - 8-8-8-24 1.65V • •

DS - - 9 - • •

Brand

Chip

Timing Voltage DIMM socket

No.

support (Optional)

1 DIMM 2 DIMM

DDR3-1333 MHz capability

Vendors Part No. Size SS/DS Chip

A-Data AD31333001GOU 1GB SS A-Data AD30908C8D-

A-Data AD63I1B0823EV 2GB SS A-Data 3CCA-1509A - - • •

A-Data AXDU1333GC2

G9-2G(XMP)

A-Data AD63I1C1624EV 4GB DS A-Data 3CCA-1509A - - • •

Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808

Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808

Apacer 78.B1GDE.9L10C 4GB DS Apacer AM5D5908

CORSAIR CM3X1024-

1333C9

CORSAIR TR3X3G1333C9 G 3GB

CORSAIR TR3X6G1333C9 G 6GB

CORSAIR CMD24GX3M6

A1333C9(XMP)

CORSAIR TW3X4G1333

C9D G

4GB

SS - - 9-9-9-24 1.25V-

(2 x 2GB)

1GB SS - - 9-9-9-24 1.60V • •

SS - - 9-9-9-24 1.50V • •

(3 x 1GB)

SS - - 9-9-9-24 1.50V • •

(3x 2GB)

24GB

DS - - 9-9-9-24 1.60V • •

(6x4GB)

4GB

DS - - 9-9-9-24 1.50V • •

(2 x 2GB)

(continued on the next page)

Chip No. Timing Voltage DIMM socket

Brand

151C E0906

DEWSBG

FEQSBG

CEHSBG

- - • •

- - • •

9 - • •

- - • •

1.35V
(low
voltage)

support (Optional)

1 DIMM 2 DIMM

• •

1-16

Chapter 1: Product introduction

DDR3-1333 MHz capability

Vendors Part No. Size SS/DS Chip

CORSAIR CMD8GX3M4

A1333C7

Crucial CT12864B

A1339.8FF

Crucial CT25664B

A1339.16FF

Crucial BL25664BN13

37.16FF (XMP)

ELPIDA EBJ10UE8

EDF0-DJ-F

ELPIDA EBJ21UE8

EDF0-DJ-F

G.SKILL F3-10600CL8

D-2GBHK(XMP)

G.SKILL F3-10600CL9

D-2GBNQ

G.SKILL F3-10666CL7

T-3GBPK(XMP)

G.SKILL F3-10666CL8

D­4GBECO(XMP)

G.SKILL F3-10666CL7

T-6GBPK(XMP)

G.SKILL F3-10666CL7

D-8GBRH(XMP)

GEIL GET316GB

1333C9QC

GEIL GV32GB

1333C9DC

GEIL GG34GB

1333C9DC

GEIL GV34GB

1333C9DC

GEIL GVP34GB

1333C7DC

Hynix HMT112U6

TFR8A-H9

Hynix HMT325U6

BFR8C-H9

Hynix HMT125U6

TFR8A-H9

Hynix HMT351U6

BFR8C-H9

8GB(4 x
2GB)

1GB SS Micron 9FF22D9KPT 9 - • •

2GB DS Micron 9KF27D9KPT 9 - • •

6GB(3 x
2GB)

1GB SS ELPIDA J1108EDSE-

2GB DS ELPIDA J1108EDSE-

1GB SS G.SKILL - - - • •

2GB
(2 x
1GB)

3GB
(3 x
1GB)

4GB
(2 x
2GB)

6GB
(3 x
2GB)

8GB
(2 x
4GB)

16GB
(4x
4GB)

2GB
(2 x
1GB)

4GB
(2 x
2GB)

4GB
(2 x
2GB)

4GB
(2 x
2GB)

1GB SS Hynix H5TC1G83

2GB SS Hynix H5TQ2G83

2GB DS Hynix H5TC1G83

4GB DS Hynix H5TQ2G83

Brand

DS - - 7-7-7-20 1.60V • •

DS - - 7-7-7-24 1.65V • •

SS - - 9-9-9-24 1.5V • •

SS - - 7-7-7-18 1.5~1.6V • •

DS - - 8-8-8-8-24 XMP

DS - - 7-7-7-18 1.5~1.6V • •

DS - - 7-7-7-21 1.5V • •

DS - - 9-9-9-24 1.5V • •

DS - - 9-9-9-24 1.5V • •

DS GEIL GL1L128M

DS - - 9-9-9-24 1.5V • •

DS - - 7-7-7-24 1.5V • •

(continued on the next page)

Chip No. Timing Voltage DIMM socket

DJ-F

DJ-F

88BA12N

TFRH9A

BFRH9C

TFRH9A

BFRH9C

- 1.35V

- 1.35V

9-9-9-24 1.3V

- 1.35V

- - • •

- 1.35V

- - • •

(low
voltage)

(low
voltage)

1.35V

(low
voltage)

(low
voltage)

(low
voltage)

support (Optional)

1 DIMM 2 DIMM

• •

• •

• •

• •

• •

• •

ASUS F1A55-M LE R2.0

1-17

DDR3-1333 MHz capability

Vendors Part No. Size SS/DS Chip

Kingmax FLFD45F-B8

Kingmax FLFE85F-C8

KINGMAX FLFE85F-C8

Kingmax FLFE85F-C8

Kingmax FLFE85F-B8

KINGMAX FLFF65F-C8

Kingmax FLFF65F-C8

KINGSTON KVR1333

KINGSTON KVR1333

KINGSTON KVR1333

KINGSTON KVR1333

KINGSTON KVR1333

KINGSTON KHX1333C7D3

KINGSTON KHX1333C9D3

KINGSTON KVR1333

KINGSTON KVR1333

Micron MT4JTF12864

Micron MT8JTF12864

Micron MT8JTF25664

Micron MT16JTF25664

Micron MT16JTF51264

OCZ OCZ3F13334GK 4GB

OCZ OCZ3P13334GK 4GB

OCZ OCZ3P1333

OCZ OCZ3X1333

KL9 NAES

KF9 CAES

KL9 NAES

KM9 NAES

KL9 NEES

KL9 NEES

KM9 NEES

D3N9/1G(

D3N9/2G

D3N9/2G

D3N9/2G

D3N9/2G

K2/4GX(XMP)

UK2/4GX(XMP)

D3N9/4G

D3N9/4G

AZ-1G4D1

AZ-1G4F1

AZ-1G4D1

AZ-1G4F1

AZ-1G4D1

LV4GK

4GK(XMP)

1GB SS Kingmax KKB8FNWB

2GB SS Kingmax KFC8FMFX

2GB SS KINGMAX KFC8FNLX

2GB SS Kingmax KFC8FNMX

2GB DS Kingmax KKB8FNWB

4GB DS KINGMAX KFC8FNLX

4GB DS Kingmax KFC8FNMX

1GB SS ELPIDA J1108BD

2GB SS Hynix H5TQ2G83

2GB DS ELPIDA J1108BF

2GB DS KTC D1288JPN

2GB DS ELPIDA J1108BD

4GB
(2x2GB)

4GB
(2 x2GB)

4GB DS ELPIDA J2108BC

4GB DS Hynix H5TQ2G

1GB SS Micron OJD12D9LGQ - - • •

1GB SS Micron 9FF22D9KPT 9 - • •

2GB SS Micron OJD12D9LGK - - • •

2GB DS Micron 9KF27D9KPT 9 - • •

4GB DS Micron OLD22D9LGK - - • •

(2x2GB)

(2x2GB)

4GB
(2x2GB)

4GB
(2x2GB)

Brand

DS - - 7 1.65V • •

DS - - 9 XMP

DS - - 9-9-9-20 1.7V • •

DS - - 7-7-7-20 1.8V • •

DS - - 7-7-7-20 1.65V • •

DS - - 7-7-7-20 1.75V • •

(continued on the next page)

Chip No. Timing Voltage DIMM socket

FGNX-27A

F-DXX-15A

F-DXX-15A

F-BXX-15A

FGNX-26A

F-DXX-15A

F-BXX-15A

BG-DJ-F

AFRH9C

BG-DJ-F

DPLD9U

SE-DJ-F

SE-DJ-F

83AFR

- - • •

- - • •

- - • •

- - • •

- - • •

- - • •

- - • •

9 1.5V • •

9 - • •

9 1.5V • •

9 1.5V • •

9 1.5V • •

9 1.5V • •

- - • •

1.25V

support (Optional)

1 DIMM 2 DIMM

• •

1-18

Chapter 1: Product introduction

DDR3-1333 MHz capability

Vendors Part No. SS/DS Chip

OCZ OCZ3P1333

PSC AL7F8G73F-DJ2 SS PSC A3P1GF3FGF - - • •

PSC AL8F8G73F-DJ2 DS PSC A3P1GF3FGF - - • •

SAMSUNG M378B2873

SAMSUNG M378B5773D

SAMSUNG M378B5673F

SAMSUNG M378B5273C

Super Talent W1333UA1GH SS Hynix H5TQ1G83TFR 9 - • •

Super Talent W1333X2G8(XMP) SS - - 8 - • •

Super Talent W1333UB2GS DS SAMSUNG K4B1G0846F 9 - • •

Super Talent W1333UB4GS DS SAMSUNG K4B2G0846C - - • •

Super Talent W1333UX6GM DS Micron 0BF27D9KPT 9-9-9-24 1.5V • •

Transcend JM1333KLN-2G SS Micron 0YD77D9LGK - - • •

Transcend JM1333KLU-2G DS Transcend TK243PDF3 - - • •

Transcend TS256MLK64V3U DS Micron 9GF27D9KPT - - • •

LV6GK

FHS-CH9

H0-CH9

H0-CH9

H0-CH9

Brand

DS - - 7-7-7-20 1.65V • •

SS SAMSUNG K4B1G0846F - - • •

SS SAMSUNG K4B2G0846D - - • •

DS SAMSUNG K4B1G0846F - - • •

DS SAMSUNG K4B2G0846C - - • •

Chip No. Timing Voltage DIMM socket

support (Optional)

1 DIMM 2 DIMM

DDR3-1066 MHz capability

Vendors Part No. Size SS/DSChip

Crucial CT12864B

Crucial CT25664B

ELPIDA EBJ10UE8

ELPIDA EBJ21UE8

KINGSTON KVR1066

KINGSTON KVR1066

KINGSTON KVR1066

Micron MT8JTF12864

Micron MT16JTF2566

A1067.8FF

A1067.16FF

EDF0-AE-F

EDF0-AE-F

D3N7/1G

D3N7/2G

D3N7/4G

AZ-1G1F1

4AZ-1G1F1

1GB SS Micron 9GF22D9KPT 7 - • •

2GB DS Micron 9HF22D9KPT 7 - • •

1GB SS ELPIDA J1108EDSE-DJ-F - 1.35V

2GB DS ELPIDA J1108EDSE-DJ-F - 1.35V

1GB SS ELPIDA J1108BFSE-DJ-F 7 1.5V • •

2GB DS ELPIDA J1108BDSE-DJ-F 7 1.5V • •

4GB DS Hynix H5TQ2

1GB SS Micron 9GF22D9KPT 7 - • •

2GB DS Micron 9HF22D9KPT 7 - • •

Chip No. Timing Voltage DIMM socket

Brand

(low
voltage)

(low
voltage)

G83AFR

7 1.5V • •

support (Optional)

1 DIMM 2 DIMM

• •

• •

ASUS F1A55-M LE R2.0

1-19

1.5.3 Installing a DIMM

1

2

3

To remove a DIMM

1-20

B

A

A

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. Remove the system unit cover (if your motherboard is already installed in a chassis).

3. Remove the bracket opposite the slot that you intend to use. Keep the screw for later
use.

4. Align the card connector with the slot and press rmly until the card is completely

seated on the slot.

5. Secure the card to the chassis with the screw you removed earlier.

6. Replace the system cover.

1.6.2 Conguring an expansion card

After installing the expansion card, congure 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. Assign an IRQ to the card.

3. Install the software drivers for the expansion card.

When using PCI cards on shared slots, ensure that the drivers support “Share IRQ” or that

the cards do not need IRQ assignments. Otherwise, conicts will arise between the two PCI

groups, making the system unstable and the card inoperable.

ASUS F1A55-M LE R2.0

1-21

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 specications.

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 specications.

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 specications.

VGA

conguration

Single VGA/
PCIe card

Dual VGA/PCIe
card

• In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16

• We recommend that you provide sufcient power when running CrossFireX™ mode.

• Connect a chassis fan to the motherboard connector labeled CHA_FAN when using

PCI Express operating mode

PCIe x16_1 PCIe x16_2

x16 (Recommended for single
VGA card)

x16 x4

graphics card to get better performance.

multiple graphics cards for better thermal environment.

N/A

1-22

Chapter 1: Product introduction

F1A55-M LE R2.0

F1A55-M LE R2.0 Clear RTC RAM

1 2 2 3

Normal

(Default)

Clear RTC

CLRTC

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.

To erase the RTC RAM:

1. Turn OFF the computer and unplug the power cord.

2. 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. Plug the power cord and turn ON the computer.

4. Hold down the <

enter data.

Del> key during the boot process and enter BIOS setup to re-

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.

ASUS F1A55-M LE R2.0

1-23

1.8 Connectors

7

4 5

6

3

2

8

1

9

1.8.1 Rear panel connectors

1. PS/2 Mouse port (green).

2. Video Graphics Adapter (VGA) port.

VGA-compatible devices.

3. LAN (RJ-45) port.

through a network hub. Refer to the table below for the LAN port LED indications.

LAN port LED indications

Activity/Link LED Speed LED
Status Description Status Description

OFF No link OFF 10Mbps

ORANGE Linked ORANGE 100Mbps

BLINKING Data activity GREEN 1Gbps

4. Line In port (light blue). This port connects to the tape, CD, DVD player, or other

audio sources.

5. Line Out port (lime).

8-channel congurations, the function of this port becomes Front Speaker Out.

6. Microphone port (pink).

Refer to the audio conguration table for the function of the audio ports in 2, 4, 6, or 8­channel conguration.

This port is for a PS/2 mouse.

This 15-pin port is for a VGA monitor or other

This port allows Gigabit connection to a Local Area Network (LAN)

connection

connection

connection

This port connects to a headphone or a speaker. In the 4, 6, and

This port connects to a microphone.

Activity Link

LED

LAN port

Speed

LED

1-24

Chapter 1: Product introduction

Audio 2, 4, 6, or 8-channel conguration

Port 2-channel 4-channel 6-channel 8-channel

Light Blue (Rear

panel)

Lime (Rear

panel)

Pink (Rear

panel)

Lime (Front

panel)

Line In

Line Out

Mic In Mic In Bass/Center Bass/Center

– – –

Rear Speaker

Out

Front Speaker

Out

Rear Speaker

Out

Front Speaker

Out

Rear Speaker

Out

Front Speaker

Out

Side Speaker

Out

7. USB 2.0 ports 1~6. These two 4-pin Universal Serial Bus (USB) ports are for USB

2.0/1.1 devices.

8. 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.

9. PS/2 Keyboard port (green).

This port is for a PS/2 keyboard.

ASUS F1A55-M LE R2.0

1-25

1.8.2 Internal connectors

F1A55-M LE R2.0

F1A55-M LE R2.0 fan connectors

CPU_FANPWR_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

Rotation

+12V

GND

CHA_FAN

Rotation

+12V

GND

F1A55-M LE R2.0

F1A55-M LE R2.0 Speaker Out Connector

+5V

GND

GND

Speaker Out

SPEAKER

PIN 1

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.

DO NOT forget to connect the fan cables to the fan connectors. Insufcient air ow 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.

1-26

Chapter 1: Product introduction

3. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)

F1A55-M LE R2.0

F1A55-M LE R2.0 ATX power connectors

EATXPWR

PIN 1

PIN 1

GND
+5 Volts
+5 Volts
+5 Volts

-5 Volts
GND
GND
GND
PSON#
GND

-12 Volts
+3 Volts

+3 Volts
+12 Volts
+12 Volts

+5V Standby

Power OK

GND

+5 Volts

GND

+5 Volts

GND
+3 Volts
+3 Volts

ATX12V

+12V DC
+12V DC

GND
GND

These connectors are for an ATX power supply. The plugs from the power supply are

designed to t these connectors in only one orientation. Find the proper orientation and
push down rmly until the connectors completely t.

• We recommend that you use an ATX 12V Specication 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 conguring 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,
refer to the Recommended Power Supply Wattage Calculator at http://support.asus.
com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us for details.

ASUS F1A55-M LE R2.0

1-27

4. Serial ATA 3.0 Gb/s connectors (7-pin SATA3G 1~6)

F1A55-M LE R2.0

GND

RSATA_RXP1

RSATA_RXN1

GND

RSATA_TXN1

RSATA_TXP1

GND

SATA3G_1

GND

RSATA_RXP2

RSATA_RXN2

GND

RSATA_TXN2

RSATA_TXP2

GND

SATA3G_2

GND

RSATA_RXP3

RSATA_RXN3

GND

RSATA_TXN3

RSATA_TXP3

GND

SATA3G_3

GND

RSATA_RXP4

RSATA_RXN4

GND

RSATA_TXN4

RSATA_TXP4

GND

SATA3G_4

GND
RSATA_RXP5
RSATA_RXN5

GND
RSATA_TXN5
RSATA_TXP5

GND

SATA3G_5

GND
RSATA_RXP6
RSATA_RXN6

GND
RSATA_TXN6
RSATA_TXP6

GND

SATA3G_6

F1A55-M LE R2.0 SATA 3.0Gb/s connectors

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 conguration through the onboard

controller.

• 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 Conguration for details.

• You must install Windows
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 Conguration for details.

®

XP Service Pack 3 or later version before using Serial

1-28

Chapter 1: Product introduction

5. Serial port connector (10-1 pin COM1)

F1A55-M LE R2.0

F1A55-M LE R2.0 Serial port (COM1) connector

PIN 1

COM1

DCD

TXD

GND

RTS

RI

RXD

DTR

DSR

CTS

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.

The COM module is purchased separately.

ASUS F1A55-M LE R2.0

1-29

6. System panel connector (10-1 pin F_PANEL)

F1A55-M LE R2.0

F1A55-M LE R2.0 System panel connector

PIN 1

PWR BTN

PLED+

PLED-

PWR

GND

HD_LED+

HD_LED-

Ground

Reset

F_PANEL

PWR LED

HD_LED RESET

F1A55-M LE R2.0

F1A55-M LE R2.0 Parallel Port Connector

PIN 1

LPT

STB#

PD0

PD1

PD2

PD3

PD4

PD5

PD6

PD7

ACK#

BUSY

PE

SLCT

AFD

ERR#

INIT#

SLIN#

GND

GND

GND

GND

GND

GND

GND

GND

This connector supports several chassis-mounted functions.

• 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 ashes 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.

1-30

Chapter 1: Product introduction

8. Digital audio connector (4-1 pin SPDIF_OUT)

SPDIF_OUT

+5V

SPDIFOUT

GND

F1A55-M LE R2.0

F1A55-M LE R2.0 Digital audio connector

F1A55-M LE R2.0

F1A55-M LE R2.0 Front panel audio connector

AAFP

AGNDNCSENSE1_RETUR

SENSE2_RETUR

PORT1 L

PORT1 R

PORT2 R

SENSE_SEND

PORT2 L

HD-audio-compliant

pin definition

PIN 1

AGNDNCNC

NC

MIC2

MICPWR

Line out_R

NC

Line out_L

Legacy AC’97

compliant definition

This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port.

Ensure that the audio device of Sound playback is Realtek High Denition Audio (the name

may be different based on the OS). Go to Start > Control Panel > Sounds and Audio
Devices > Sound Playback to congure 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 Denition Audio or AC`97 audio standard. Connect one end of the front

panel audio I/O module cable to this connector.

• We recommend that you connect a high-denition front panel audio module to this
connector to avail of the motherboard high-denition audio capability.

• If you want to connect a high denition 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
Conguration for details.

• The front panel audio I/O module is purchased separately.

ASUS F1A55-M LE R2.0

1-31

10. USB 2.0 connectors (10-1 pin USB56, USB78, USB910)

F1A55-M LE R2.0

F1A55-M LE R2.0 USB2.0 connectors

USB+5V

USB_P10-

USB_P10+

GND

NC

USB+5V

USB_P9-

USB_P9+

GND

USB910

PIN 1

USB+5V

USB_P8-

USB_P8+

GND

NC

USB+5V

USB_P7-

USB_P7+

GND

USB78

PIN 1

USB+5V

USB_P6-

USB_P6+

GND

NC

USB+5V

USB_P5-

USB_P5+

GND

USB56

PIN 1

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 specication that supports up to

480Mbps connection speed.

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
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
ASUS website at www.asus.com for updates.

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.

®

XP Service Pack 3 or later versions / Windows®

Click an item to install

If Autorun is NOT enabled in your computer, browse the contents of the Support DVD to

locate the le ASSETUP.EXE from the BIN folder. Double-click the ASSETUP.EXE to run

the DVD.

ASUS F1A55-M LE R2.0

Click an icon to display
Support DVD/motherboard
information

1-33

1-34

Chapter 1: Product introduction

BIOS setup

2

2.1 Managing and updating your BIOS

Save a copy of the original motherboard BIOS le to a USB ash 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. Place the support DVD in the optical drive. The Drivers menu appears.

2. Click the

3. Follow the onscreen instructions to complete the installation.

Utilities tab, then click AI Suite II.

Quit all Windows® applications before you update the BIOS using this utility.

Updating the BIOS

To update the BIOS:

®

1. From the Windows

II X.XX.XX to launch the AI Suite II utility. The AI Suite II Quick Bar appears.

2. Click

ASUS F1A55-M LE R2.0

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:

desktop, click Start > Programs > ASUS > AI Suite II > AI Suite

2-1

Updating from the Internet

a. Select

b. Select the ASUS FTP site nearest you to avoid network trafc, then click

Update BIOS from the Internet, then click Next.

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

b. Locate the BIOS le from the

Update BIOS from le, then click Next.

Open window, then click Open.

3. Follow the onscreen instructions to complete the updating process.

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 le from the ASUS website at

www.asus.com.

To update the BIOS using EZ Flash 2:

1. Insert the USB ash disk that contains the latest BIOS le to the USB port.

2. Enter the

ASUS EZ Flash Utility and press <Enter> to enable it.

3. Press <Tab> to switch to the

4. Press the Up/Down arrow keys to nd the USB ash disk that contains the latest BIOS,

and then press <Enter>.

5. Press <Tab> to switch to the

6. Press the Up/Down arrow keys to nd the BIOS le, and then press <Enter> to perform

the BIOS update process. Reboot the system when the update process is done.

Advanced Mode of the BIOS setup program. Go to the Tool menu to select

Drive eld.

Folder Info eld.

2-2

• This function supports USB ash 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!

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 le

when it fails or gets corrupted during the updating process. You can restore a corrupted BIOS

le using the motherboard support DVD or a USB ash drive that contains the updated BIOS
le.

• Before using this utility, rename the BIOS le in the removable device into

F1A55MR2.CAP.

• The BIOS le in the support DVD may not be the latest version. Download the latest
BIOS le 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 ash drive that contains the
BIOS le to the USB port.

3. The utility automatically checks the devices for the BIOS le. When found, the utility
reads the BIOS le 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!

ASUS F1A55-M LE R2.0

2-3

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 le 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 ash drive in FAT32/16 format and

single partition.

2. Download the latest BIOS le and BIOS Updater from the ASUS website at

http://support.asus.com and save them on the USB ash drive.

NTFS is not supported under DOS environment. Do not save the BIOS le and BIOS
Updater to a hard disk drive or USB ash 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 ash drive with the latest BIOS le and BIOS Updater to the USB port.

2. Boot your computer. When the ASUS Logo appears, press <F8> to show the

Boot Device Select Menu. Insert the support DVD into the optical drive and select the
optical drive as the boot device.

BIOS

3. When the Make Disk menu appears, select the FreeDOS command prompt item by
pressing the item number.

4. At the FreeDOS prompt, type d: and press <Enter> to switch the disk from Drive C

(optical drive) to Drive D (USB ash drive).

2-4

Chapter 2: BIOS setup

Backing up the current BIOS

To back up the current BIOS le using the BIOS Updater:

Ensure that the USB ash drive is not write-protected and has at least 1024KB free space
to save the le.

1. At the FreeDOS prompt, type bupdater /o[lename] and press <Enter>.

Filename

Extension

The [lename] is any user-assigned lename with no more than eight alphanumeric

characters for the lename 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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2-5

Updating the BIOS le

To update the BIOS le using BIOS Updater:

1. At the FreeDOS prompt, type

2. The BIOS Updater screen appears as below.

3. Press <Tab> to switch between screen elds and use the <Up/Down/Home/End> keys
to select the BIOS le and press <Enter>. BIOS Updater checks the selected BIOS le
and prompts you to conrm BIOS update.

bupdater /pc /g and press <Enter>.

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 le 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 congure 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 rst 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
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.

www.asus.com to download the latest BIOS le for this

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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

Displays the CPU/motherboard temperature,
CPU/5V/3.3V/12V voltage output,
CPU/chassis fan speed

Displays the
Advanced mode

Selects the
Advanced mode
functions

functions

Displays the system properties
of the selected mode on the
right hand side

BIOS setup program

Power Saving mode

Clicks to display all fan

speeds if available

Exits the BIOS setup program without saving
the changes, saves the changes and resets
the system, or enters the Advanced Mode

Loads optimized default

Normal mode

Selects the boot device priority

ASUS Optimal mode

2-8

• 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.

Chapter 2: BIOS setup

Advanced Mode

The Advanced Mode provides advanced options for experienced end-users to congure the
BIOS settings. The gure below shows an example of the Advanced Mode. Refer to the
following sections for the detailed congurations.

To access the EZ Mode, click Exit, then select ASUS EZ Mode.

Back button

Submenu item

Menu items

Menu bar

Pop-up window

Conguration elds

Menu bar

The menu bar on top of the screen has the following main items:

General help

Navigation keys

Main For changing the basic system conguration
Ai Tweaker For changing the overclocking settings

Advanced For changing the advanced system settings

Monitor For displaying the system temperature, power status, and changing the

Boot For changing the system boot conguration

Tool For conguring options for special functions
Exit For selecting the exit options and loading default settings

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2-9

Menu items

The highlighted item on the menu bar displays the specic 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 conguration

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 t 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.

Conguration elds

These elds show the values for the menu items. If an item is user-congurable, you can
change the value of the eld opposite the item. You cannot select an item that is not
user-congurable.

A congurable eld is highlighted when selected. To change the value of a eld, 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. Conguration 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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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 elds in the BIOS setup program.

To set an administrator password:

1. Select the

2. From the

3. Conrm the password when prompted.

To change an administrator password:

1. Select the

2. From the
<Enter>.

3. From the

4. Conrm 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/conrm the password. After you clear

the password, the Administrator Password item on top of the screen shows Not Installed.

Administrator Password item and press <Enter>.

Create New Password box, key in a password, then press <Enter>.

Administrator Password item and press <Enter>.

Enter Current Password box, key in the current password, then press

Create New Password box, key in a new password, then press <Enter>.

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. Select the

2. From the

3. Conrm the password when prompted.

To change a user password:

1. Select the

2. From the
<Enter>.

3. From the

4. Conrm the password when prompted.

User Password item and press <Enter>.

Create New Password box, key in a password, then press <Enter>.

User Password item and press <Enter>.

Enter Current Password box, key in the current password, then press

Create New Password box, key in a new password, then press <Enter>.

To clear the user password, follow the same steps as in changing a user password, but press

<Enter> when prompted to create/conrm the password. After you clear the password, the

User Password item on top of the screen shows Not Installed.

2-12

Chapter 2: BIOS setup

2.4 Ai Tweaker menu

The Ai Tweaker menu items allow you to congure overclocking-related items.

Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld

values can cause the system to malfunction.

The conguration 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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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 conguration options:

[Auto] Loads the optimal settings for the system.

[Manual] Allows you to individually set overclocking parameters.

[D.O.C.P.] Allows you to select a DRAM O.C. prole, 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. Prole [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. prole, which applies different settings to DRAM frequency,
DRAM timing and DRAM voltage. Conguration 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 9-9­9-24 1.65V] [DDR3-2133MHz 9-9-9-24 1.65V] [DDR3-2200MHz 9-9-9-24 1.65V] [DDR3­2400MHz 9-9-9-24 1.65V]

2.4.2 Memory Frequency [Auto]

Allows you to set the memory operating frequency. Conguration 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.

Conguration 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. Conguration 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 dened by AMD VRM specications, 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). Conguration options: [Auto] [Regular] [Medium]

[High] [Ultra High] [Extreme]

The actual performance boost may vary depending on your CPU specication.

CPU/NB Load-Line Calibration [Auto]

Load-line is dened 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. Conguration options: [Auto] [Regular] [High]

[Extreme]

The actual performance boost may vary depending on your CPU specication.

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. Conguration 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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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 specication, 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 APU Spread Spectrum [Auto]

[Auto] Automatic conguration.

[Disabled] Enhances the PCIE overclocking ability.

[Enabled] Sets to [Enabled] for EMI control.

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2-17

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 eld values

can cause the system to malfunction.

2.5.1 CPU Conguration

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

[Disabled] Disables this function.

C6 Mode [Auto]

Enables or disables C6 mode. Conguration options: [Auto] [Enabled] [Disabled]

CPB Mode [Auto]

Disables the CPB (Core Performance Boost) mode or set it to [Auto] for automatic

conguration. Conguration options: [Disabled] [Auto]

2-18

with extended CPUID functions.

Chapter 2: BIOS setup

AMD PowerNow function [Enabled]

Enables or disables the AMD PowerNow function. Conguration options: [Enabled] [Disabled]

SVM [Enabled]

Enables or disables CPU virtualization. Conguration options: [Disabled] [Enabled]

C-state Pmin

Enables or disables C-State Pmin. Conguration options: [Disabled] [Enabled]

2.5.2 SATA Conguration

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. Conguration options: [Disabled] [Enabled]

OnChip SATA Type [IDE]

Allows you to set the SATA conguration.

[IDE] Set to [IDE] when you want to use the Serial ATA hard disk drives as

[RAID] Set to [RAID] when you want to create a RAID conguration from the SATA

[AHCI] Set to [AHCI] when you want the SATA hard disk drives to use the AHCI

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 congured 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. Conguration options: [AHCI or RAID] [IDE]

Board SATA RAID ROM [RAID]

This item only appears when the previous item is set to [RAID].

Conguration 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. Conguration options: [Enabled] [Disabled]

Parallel ATA physical storage devices.

hard disk drives.

(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.

ASUS F1A55-M LE R2.0

2-19

2.5.3 USB Conguration

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] Enables the support for USB devices on legacy operating systems (OS).

[Disabled] The USB devices can be used only for the BIOS setup program.

[Auto] Allows the system to detect the presence of USB devices at startup. If

detected, the USB controller legacy mode is enabled. If no USB device is
detected, the legacy USB support is disabled.

EHCI Hand-off [Disabled]

[Enabled] Enables the support for operating systems without an EHCI hand-off

[Disabled] Disables the function.

feature.

2.5.4 NB Conguration

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 xed in 64MB. Conguration options: [Disabled] [Enabled]

Primary Video Device [PCIE / PCI Video]

Selects the primary display device. Conguration options: [IGFX Video] [PCIE / PCI Video]

Integrated Graphics [Auto]

Enables the integrated graphics controller. Conguration options: [Auto] [Force]

2.5.5 Onboard Devices Conguration

HD Audio Device [Enabled]

[Enabled] Enables the High Denition 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-

denition audio depending on the audio standard that the front panel audio module supports.

[HD] Sets the front panel audio connector (AAFP) mode to high denition audio.

[AC97] Sets the front panel audio connector (AAFP) mode to legacy AC’97.

2-20

Chapter 2: BIOS setup

SPDIF Out Type [SPDIF]

[SPDIF] Sets to [SPDIF] for SPDIF audio output.

[HDMI] Sets to [HDMI] for HDMI audio output.

Realtek LAN Controller [Enabled]

[Enabled] Enables the Realtek LAN controller.

[Disabled] 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.

Conguration options: [Enabled] [Disabled]

Serial Port Conguration [Enabled]

The sub-items in this menu allow you to set the serial port conguration.

Serial Port [Enabled]

Allows you to enable or disable the serial port (COM).

Conguration options: [Enabled] [Disabled]

Change Settings [IO=3F8h; IRQ=4]

Allows you to select the Serial Port base address.

Conguration options: [IO=3F8h; IRQ=4] [IO=2F8h; IRQ=3] [IO=3E8h; IRQ=4]
[IO=2E8h; IRQ=3]

Parallel Port Conguration [Enabled]

The sub-items in this menu allow you to set the parallel port conguration.

Parallel Port [Enabled]

Allows you to enable or disable the parallel port (LPT/LPTE).

Conguration options: [Enabled] [Disabled]

Change Settings [Auto]

Allows you to select the Parallel Port base address.

Conguration 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.

Conguration options: [Standard Parallel Port Mode] [EPP Mode] [ECP Mode] [EPP

Mode & ECP Mode]

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2.5.6 APM

Restore AC Power Loss [Power Off]

[Power On] The system goes into on state after an AC power loss.

[Power Off] The system goes into off state after an AC power loss.

[Last State] 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] Disables the PME to wake up by PCI/PCIE devices.

[Enabled] 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] Disables Ring to generate a wake event.

[Enabled] Enables Ring to generate a wake event.

Power On By RTC [Disabled]

[Disabled] Disables RTC to generate a wake event.

[Enabled] When set to [Enabled], the items RTC Alarm Date (Days) and Hour/

Minute/Second will become user-congurable with set values.

2.5.7 Network Stack

Network Stack [Disabled]

This item allows user to disable or enable the UEFI network stack.

Conguration 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.

Conguration 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.

Conguration 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
eld shows N/A. Select Ignore if you do not wish to display the detected speed.

2.6.3 CPU Q-Fan Control [Enabled]

[Disabled] Disables the CPU Q-Fan control feature.

[Enabled] Enables the CPU Q-Fan control feature.

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.

Conguration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]

ASUS F1A55-M LE R2.0

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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

[Silent] Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.

[Turbo] Sets to [Turbo] to achieve maximum CPU fan speed.

[Manual] Sets to [Manual] to assign detailed fan speed control parameters.

The following four items appear only when you set CPU Fan Prole to [Manual].

depending on the CPU temperature.

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.

Conguration options: [Disabled] [Enabled]

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Chapter 2: BIOS setup

2.7 Boot menu

The Boot menu items allow you to change the system boot options.

2.7.1 Bootup NumLock State [On]

[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 Full Screen Logo [Enabled]

[Enabled] Enables the full screen logo display feature.

[Disabled] Disables the full screen logo display feature.

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. Conguration 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. Conguration options: [Disabled] [Enabled]

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2.7.4 Option ROM Messages [Force BIOS]

[Force BIOS] The third-party ROM messages will be forced to display during the boot

[Keep Current] The third-party ROM messages will be displayed only if the third-party

sequence.

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

[EZ Mode] Sets EZ Mode as the default screen for entering the BIOS setup program.

program.

2.7.6 UEFI Legacy Boot

Enables or disables the booting function of UEFI or legacy devices.

Conguration 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 specie
what PCI option ROM to launch. Conguration 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.

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Chapter 2: BIOS setup

2.8 Tools menu

The Tools menu items allow you to congure 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. Prole

This item allows you to store or load multiple BIOS settings.

The Setup Prole Status items show Not Installed if no prole is created.

Save to Prole

Allows you to save the current BIOS settings to the BIOS Flash, and create a prole. Key in a
prole number from one to eight, press <Enter>, and then select Yes.

Load from Prole

Allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the prole

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 le only coming from the same memory/
CPU conguration 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. Conguration options: [DIMM_A1] [DIMM_B1]

ASUS F1A55-M LE R2.0

2-27

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 conrmation window appears.

Select Yes to load the default values.

Save Changes & Reset

Once you are nished 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 conrmation 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 conrmation 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 lesystem device

This option allows you to attempt to launch the UEFI Shell application (shellx64.e) from one
of the available devices that have a lesystem.

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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 modications to this unit not

expressly approved by the party responsible for compliance could void the user’s authority
to operate this equipment.

ASUS F1A55-M LE R2.0

A-1

IC: Canadian Compliance Statement

Complies with the Canadian ICES-003 Class B specications. 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

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Appendices

REACH

Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of
Chemicals) regulatory framework, we published the chemical substances in our products at
ASUS REACH website at http://csr.asus.com/english/REACH.htm.

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.

ASUS F1A55-M LE R2.0

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ASUS contact information

ASUSTeK COMPUTER INC.

Address 15 Li-Te Road, Peitou, Taipei, Taiwan 11259
Telephone [phone]
Fax [phone]
E-mail [e-mail]
Web site www.asus.com.tw

Technical Support

Telephone [phone]
Online support support.asus.com

ASUS COMPUTER INTERNATIONAL (America)

Address 800 Corporate Way, Fremont, CA 94539, USA
Telephone [phone]
Fax [phone]
Web site usa.asus.com

Technical Support

Telephone [phone]
Support fax [phone]
Online support support.asus.com

ASUS COMPUTER GmbH (Germany and Austria)

Address Harkort Str. 21-23, D-40880 Ratingen, Germany
Fax [phone]
Web site www.asus.de
Online contact www.asus.de/sales

Technical Support

Telephone [phone]*
Support Fax [phone]
Online support support.asus.com

* EUR 0.14/minute from a German xed landline; EUR 0.42/minute from a mobile phone.

Manufacturer: ASUSTeK Computer Inc.

Address: 4F, No.150, LI-TE RD., PEITOU, TAIPEI 112,

Authorised representative in
Europe:

Address: HARKORT STR. 21-23, 40880 RATINGEN,

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TAIWAN, R.O.C.

ASUS Computer GmbH

GERMANY

Appendices

DECLARATION OF CONFORMITY

Per FCC Part 2 Section 2. 1077(a)

Responsible Party Name: Asus Computer International

Address: 800 Corporate Way, Fremont, CA 94539.

Phone/Fax No: [phone]/[phone]

hereby declares that the product

Product Name : Motherboard

Model Number : F1A55-M LE R2.0

Conforms to the following specifications:

FCC Part 15, Subpart B, Unintentional Radiators

FCC Part 15, Subpart C, Intentional Radiators

FCC Part 15, Subpart E, Intentional Radiators

Supplementary Information:

This device complies with part 15 of the FCC Rules. Operation is subject to

the following two conditions: (1) This device may not cause harmful

interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

Representative Person’s Name : Steve Chang / President

Signature :

Date : Apr. 09, 2012

Ver. 110101

EC Declaration of Conformity

We, the undersigned,

Manufacturer:

ASUSTeK COMPUTER INC.

Address, City:

4F, No. 150, LI-TE Rd., PEITOU, TAIPEI 112, TAIWAN

Country:

TAIWAN

Authorized representative in Europe:

ASUS COMPUTER GmbH

Address, City:

HARKORT STR. 21-23, 40880 RATINGEN

Country:

GERMANY

declare the following apparatus:

Product name : Motherboard

Model name : F1A55-M LE R2.0

conform with the essential requirements of the following directives:

2004/108/EC-EMC Directive

EN 55022:2010

EN 61000-3-2:2006+A2:2009

EN 55013:2001+A1:2003+A2:2006

EN 55024:2010

EN 61000-3-3:2008

EN 55020:2007+A11:2011

1999/5/EC-R &TTE Directive

EN 300 328 V1.7.1(2006-10)

EN 300 440-1 V1.6.1(2010-08)

EN 300 440-2 V1.4.1(2010-08)

EN 301 511 V9.0.2(2003-03)

EN 301 908-1 V5.2.1(2011-05)

EN 301 908-2 V5.2.1(2011-07)

EN 301 893 V1.6.1(2011-11)

EN 302 544-2 V1.1.1(2009-01)

EN 302 623 V1.1.1(2009-01)

EN 300 330-1 V1.7.1(2010-02)

EN 300 330-2 V1.5.1(2010-02)

EN 50360:2001

EN 62479:2010

EN 301 489-1 V1.9.2(2011-09)

EN 301 489-3 V1.4.1(2002-08)

EN 301 489-4 V1.4.1(2009-05)

EN 301 489-7 V1.3.1(2005-11)

EN 301 489-9 V1.4.1(2007-11)

EN 301 489-17 V2.1.1(2009-05)

EN 301 489-24 V1.5.1(2010-09)

EN 302 326-2 V1.2.2(2007-06)

EN 302 326-3 V1.3.1(2007-09)

EN 301 357-2 V1.4.1(2008-11)

EN 50385:2002

EN 62311:2008

2006/95/EC-LVD Directive

EN 60950-1 / A11:2009

EN 60950-1 / A12:2011

EN 60065:2002 / A2:2010

EN 60065:2002 / A12:2011

2009/125/EC-ErP Directive

Regulation (EC) No. 1275/2008

Regulation (EC) No. 642/2009

Regulation (EC) No. 278/2009

2011/65/EU-RoHS Directive Ver. 121001

CE marking

Declaration Date: Dec. 10, 2012

Year to begin affixing CE marking:2012

Position : CEO

Name : Jerry Shen

Signature : __________

(EC conformity marking)

ASUS F1A55-M LE R2.0

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