Asus F1A55 R2.0 User Manual

F1A55 R2.0

Motherboard

E7473
First Edition

July 2012

Copyright © 2012 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any
means, except documentation kept by the purchaser for backup purposes, without the express written
permission of ASUSTeK COMPUTER INC. (“ASUS”).

Product warranty or service will not be extended if: (1) the product is repaired, modied or altered, unless
such repair, modication of alteration is authorized in writing by ASUS; or (2) the serial number of the

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ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS

OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF
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ii

Contents

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

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

F1A55 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 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 (APU) .........................................................

1.4.1 Installing the CPU .......................................................................

1.4.2 Installing the heatsink and fan

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

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

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

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

1.5.4 Removing 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 slots ....................................................................................

1.6.4 PCI Express x1 slots .................................................................

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 Onboard switch ........................................................................................

1.10 Onboard LEDs ..........................................................................................

1.11 Software support

1.11.1 Installing an operating system

1.11.2 Support DVD information ..........................................................

........................................................................................ 1-19

...................................................................................... 1-32

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

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

................................................................................. 1-6

................................................... 1-11

...................................................... 1-19

.................................................................... 1-24

................................................... 1-32

1-2

1-5

1-5

1-7

1-8

1-9

1-9

1-13

1-13

1-13

1-18

1-18

1-19

1-19

1-19

1-20

1-21

1-22

1-22

1-30

1-31

1-32

iii

BIOS information 2-1

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 ....................................................................................... 2-7

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 [OK] ..........................................................................

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

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

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

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

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

2.4.11 DRAM Voltage [Auto] ................................................................

2.4.12 SB 1.1V Voltage [Auto]

2.4.13 1.1Vsb Voltage [Auto]

2.4.14 APU 1.2V Voltage [Auto] ...........................................................

2.4.15 VDDA Voltage [Auto] .................................................................

2.4.16 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 ...........................................................................

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

2-2

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

2-4

2-6

2-10

2-10

2-10

.............................................................. 2-10

2-10

2-12

2-13

2-13

2-13

......................................... 2-13

2-14

2-14

2-14

2-15

2-15

2-15

2-15

.............................................................. 2-15

................................................................ 2-15

2-15

2-16

2-16

2-16

2-17

2-17

2-18

2-19

2-19

2-20

2-21

iv

2.6 Monitor menu ...........................................................................................2-22

2.6.1 CPU Temperature / MB Temperature

2.6.2 CPU / Chassis / Power Fan Speed ...........................................

2.6.3 CPU Q-Fan Control [Enabled]

2.6.4 Chassis Q-Fan Control [Enabled] .............................................

2.6.5 CPU Voltage, 5V Voltage, 12V Voltage .....................................

2.6.6 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 [Enabled both UEFI and Legacy] ................

2.7.7 PCI ROM Priority [Legacy ROM]

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 ..................................................................................................

[xxxºC/xxxºF] ..................2-22

2-22

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

2-23

2-24

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

2-25

2-25

2-25

2-26

2-26

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-3

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 components, 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 be exposed to moisture.

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 descriptions of the switches, jumpers, and connectors on the
motherboard.

• Chapter 2: BIOS information

This chapter discusses changing system settings through the BIOS Setup menus.
Detailed descriptions fo 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.

vii

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
completing a task.

CAUTION: Information to prevent damage to the components when
completing a task

IMPORTANT: Instructions that you MUST follow to complete a task.

NOTE: Tips and additional information to help you complete a task.

Typography

Bold text 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 R2.0 specications summary

CPU AMD® Fusion™ A- & E2 series accelerated processors, up to 4 CPU cores,

FM1 socket

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 4 x DDR3 DIMMs, max. 64GB, DDR3 2250(O.C.) / 1866 / 1600 / 1333 /

1066 MHz, non-ECC, un-buffered memory

Dual-channel memory architecture

• The maximum 64GB 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® 32-bit
operating system may only recognize less than 3GB. We recommend a
maximum of 3GB system memory if you are using a Windows® 32-bit operating
system.

Graphics Integrated AMD® Radeon™ HD 6000 series graphics in the Llano APU

Supports AMD® Dual Graphics

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

Expansion slots 2 x PCI Express 2.0 x16 slot (blue @x16 mode, black @x4 mode)

2 x PCI Express 2.0 x1 slots

3 x PCI slot

Multi-GPU support

Supports AMD® CrossFireX™ technology

Storage / RAID AMD® A55 FCH

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

and JBOD congurations

LAN

Realtek® RTL8111E Gigabit LAN Controller

Audio ALC887 8-channel High Denition Audio CODEC

- Supports Jack-Detection, Multi-Streaming, and Front Panel Jack­Retasking

- Supports S/PDIF out interface at the back I/O

USB AMD® A55 FCH:

- 12 x USB 2.0/1.1 ports (6 ports at the mid-board, 6 ports at the back
panel)

Asmedia® USB 3.0 controller:

- 2 x USB 3.0 ports (blue, at the back panel)

(continued on the next page)

ix

F1A55 R2.0 specications summary

ASUS unique features

ASUS Exclusive Features

- ASUS TurboV

- ASUS Low EMI

- ASUS AI Charger+

- ASUS MemOK!

- ASUS AI Suite II

- ASUS Anti-Surge Protection

- ASUS UEFI BIOS EZ Mode

- Hybrid DIGI+VRM

- ASUS EPU

- Network iControl

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™

- Multi-language BIOS

Other features

- 100% All high-quality conductive polymer capacitors

• The Network iControl feature is not supported in Windows® XP/Vista
operating systems.

ASUS Exclusive
overclocking features

Precision Tweaker 2

- vCore: Adjustable CPU voltage at 0.00325V increment

- vDRAM: Adjustable DRAM voltage at 0.01V increment

- vFCH: Adjustable FCH voltage at 0.01V increment

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 (purple)

1 x PS/2 mouse port (green)

1 x Optical S/PDIF output port

1 x LAN (RJ-45) port

6 x USB 2.0/1.1 ports

2 x USB 3.0 ports (blue)

8-channel audio I/O ports

(continued on the next page)

x

F1A55 R2.0 specications summary

Internal I/O
connectors / buttons /
switches

Accessories 2 x Serial ATA 3.0Gb/s cables

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

Support DVD Drivers

Form factor

Specications are subject to change without notice.

3 x USB 2.0/1.1 connectors support additional 6 USB 2.0/1.1 ports

6 x SATA 3.0Gb/s connectors

1 x COM connector

1 x CPU fan connector

2 x Chassis fan connectors

1 x Power fan connector

1 x Front panel audio connector

1 x S/PDIF output connector

1 x System panel connector

1 x 24-pin EATX power connector

1 x 4-pin ATX 12V power connector

1 x MemOK! button

1 x I/O shield

1 x User Manual

1 x Support DVD

BIOS 2.6

ASUS utilities

ASUS Update

Anti-virus software (OEM version)

ATX form factor: 12.0 in x 8.8 in (30.5 cm x 22.4 cm)

xi

Package contents

User Manual

F1A55 R2.0

PCIEX16_1

PCIEX16_2

PCIEX1_2

PCIEX1_1

PCI1

PCI2

PCI3

USB78USB910USB1112

PANEL

SPDIF_OUT

AAFP

CPU_FAN

CHA_FAN1

PWR_FAN

CHA_FAN2

Lithium Cell

CMOS Power

Super

I/O

AUDIO

ALC

887

EPU

ASM

1042

ICS483A

COM1

KBMS

64Mb

BIOS

SB_PWR

CLRTC

AMD

®

A55 FCH

Realtek

®

8111E

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_A2 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

DDR3 DIMM_B2 (64bit, 240-pin module)

LAN1_USB12

USB3_E12

USB34

USB56

SPDIF_O2

SATA3G_5

SATA3G_6

SATA3G_3

SATA3G_4

SATA3G_1

SATA3G_2

MemOK!

DRAM_LED

SOCKET FM1

EATXPWR

ATX12V

Check your motherboard package for the following items.

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

1 x I/O-Shield User Guide Support DVD

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

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

vary with different models.

xii

Product introduction

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
processors 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 FCH (Hudson D2) Chipset

AMD® A55 FCH (Hudson D2) is designed to support up to 5GT/s
interface speed 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

ASUS F1A55 R2.0

USB 3.0 support

Experience ultra-fast data transfer at 4.8Gbps with USB 3.0 – the latest
connectivity standard. Built to connect easily with next-generation
components and peripherals, USB 3.0 transfers data 10x faster and is
also backward compatible with USB 2.0 components.

100% All High-quality Conductive Polymer Capacitors

This motherboard uses all high-quality conductive polymer capacitors for
durability, improved lifespan, and enhanced thermal capacity.

1-1

1.1.2 ASUS Exclusive features

Hybrid DIGI+ VRM: Maximizing System Potential

ASUS brings the exclusive Hybrid DIGI+ VRM design to value
motherboards to better serve a wider range of user needs. Based on
technology developed for high performance ASUS products, Hybrid
DIGI+ VRM on ASUS motherboards with the AMD A55 chipset allows
APU voltage and VRM frequency adjustments via smart preset modes

and user-dened proles. The unique design offers a broad range of
adjustable power options to create more headroom for exible system

tuning. Boosted by world-renowned ASUS quality, it creates an all­around platform for a diverse range of applications, including gaming,
multimedia, and productivity, all with improved multitasking.

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

MemOK!

MemOK! guickly ensures memory boot compatibility. This remarkable
memory rescue tool requires a mere push of the button to patch memory
issues. MemOK! determines failsafe settings and dramatically improves
your system boot success. Get your system up and running in no time.

ASUS UEFI BIOS (EZ Mode)

The new ASUS UEFI BIOS is an Unied Extensible Firmware Interface

that offers a user-friendly interface that goes beyond traditional

keyboard-only BIOS controls to enable exible and convenient mouse

input. Users can easily navigate the new UEFI BIOS with the same
smoothness as their operating system. It natively supports hard drives

larger than 2.2TB in 64-bit, with full storage space utilization, helping

deliver far more exciting computing than traditional BIOS versions.

The exclusive EZ Mode displays frequently-accessed setup info, while
the Advanced Mode is for experienced performance enthusiasts that
demand far more intricate system settings.

1-2

ASUS Anti-Surge Protection

This special design protects expensive devices and the motherboard
from damage caused by power surges from switching power supply
units (PSU).

AI Suite II

With its user-friendly interface, ASUS AI Suite II consolidates all the
exclusive ASUS features into one simple to use software package. It
allows you to supervise overclocking, energy management, fan speed
control, voltage and sensor readings. This all-in-one software offers
diverse and easy to use functions, with no need to switch back and forth
between different utilities.

Chapter 1: Product introduction

Ai Charger+

ASUS Ai Charger+, the latest Ai Charger* version, brings you to a new
level of USB3.0 fast charging experience. With its easy and user-friendly
interface, you can not only charge iPods, iPhones and iPads, but also
BC 1.1** standard mobile devices three times*** faster than before.

* Ai Charger is a unique fast-charging software which supports iPods, iPhones and

iPads.

** Check your USB mobile device manufacturer if it fully supports the BC 1.1 function.

*** The actual charging speed may vary with your USB device’s conditions.

ASUS TurboV

Feel the adrenaline rush of real-time OC — now a reality with the ASUS
TurboV. This easy OC tool allows you to overclock without exiting or

rebooting the OS; and its user-friendly interface makes overclocking only
a few clicks away. Moreover, the ASUS OC proles in TurboV provides

the best O.C. settings in different scenarios.

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.

Fan Xpert

ASUS Fan Xpert intelligently allows you to adjust the CPU fan and
chassis fan speeds according to different ambient temperatures caused
by different climate conditions in different geographic regions and your

PC’s loading. The built-in variety of useful proles offer exible controls

of fan speed to achieve a quiet and cool environment.

ASUS MyLogo 2™

Personalize your system by turning your favorite photos into 256-color

boot logos.

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.

ASUS F1A55 R2.0

1-3

C.P.R. (CPU Parameter Recall)

The BIOS C.P.R. feature automatically restores CPU default settings
when the system crashes 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

This motherboard is European Union´s Energy-related Products (ErP)

ready, and ErP requires products to meet certain energy efciency

requirements with regard to energy consumption. 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 impact.

1-4

Chapter 1: Product introduction

1.2 Before you proceed

Take note of the following precautions before you install motherboard components or change
any motherboard settings.

• Unplug the power cord from the wall socket before touching any component.

• Before handling components, use a grounded wrist strap or touch a safely grounded
object or a metal object, such as the power supply case, to avoid damaging them due
to static electricity.

• Hold components by the edges to avoid touching the ICs on them.

• Whenever you uninstall any component, place it on a grounded antistatic pad or in the
bag that came with the component.

• Before you install or remove any component, ensure that the ATX power supply is
switched off or the power cord is detached from the power supply. Failure to do so
may cause severe damage to the motherboard, peripherals, or components.

1.3 Motherboard overview

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

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, 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.

ASUS F1A55 R2.0

1-5

F1A55 R2.0

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

1-6

Chapter 1: Product introduction

1.3.3 Motherboard layout

F1A55 R2.0

PCIEX16_1

PCIEX16_2

PCIEX1_2

PCIEX1_1

PCI1

PCI2

PCI3

USB78USB910USB1112

PANEL

SPDIF_OUT

AAFP

CPU_FAN

CHA_FAN1

PWR_FAN

CHA_FAN2

Lithium Cell

CMOS Power

Super

I/O

AUDIO

ALC
887

EPU

ASM
1042

ICS483A

COM1

KBMS

64Mb
BIOS

SB_PWR

CLRTC

22.4cm(8.8in)

30.5cm(12.0in)

AMD

®

A55 FCH

Realtek

®

8111E

DDR3 DIMM_A1 (64bit, 240-pin module)

DDR3 DIMM_A2 (64bit, 240-pin module)

DDR3 DIMM_B1 (64bit, 240-pin module)

DDR3 DIMM_B2 (64bit, 240-pin module)

LAN1_USB12

USB3_E12

USB34

USB56

SPDIF_O2

SATA3G_5

SATA3G_6

SATA3G_3

SATA3G_4

SATA3G_1

SATA3G_2

MemOK!

DRAM_LED

SOCKET FM1

EATXPWR

ATX12V

1 2 41 3

2

7

13 12 11 10 91 8

6

5

14

ASUS F1A55 R2.0

1-7

1.3.4 Layout contents

Connectors/Jumpers/Slots/LED Page

1. Power, CPU and chassis fan connectors (3-pin PWR_FAN, 4-pin CPU_FAN,
and 4-pin CHA_FAN1/2)

2. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-24

3. AMD FM1 socket 1-8

4. DDR3 DIMM slots 1-12

5. MemOK! switch 1-29

6. SATA 3.0Gb/s connectors (7-pin SATA3G_1~6) 1-25

7. Standby power LED (SB_PWR) 1-30

8. System panel connector (20-8 pin PANEL) 1-27

9. Clear RTC RAM (3-pin CLRTC) 1-20

10. USB 2.0 connectors (10-1 pin USB78, USB910, USB1112) 1-28

11. Serial port connector (10-1 pin COM1) 1-26

12. Digital audio connector (4-1 pin SPDIF_OUT) 1-26

13. Front panel audio connector (10-1 pin AAFP) 1-28

14. DRAM LED (DRAM_LED) 1-30

1-23

1-8

Chapter 1: Product introduction

1.4 Accelerated Processing Unit (APU)

F1A55 R2.0

F1A55 R2.0 CPU socket FM1

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

Use an APU designed for the FM1 socket. The APU ts in only one correct orientation. DO

NOT force the APU into the socket to prevent bending the pins and damaging the APU!

1.4.1 Installing the CPU

Unplug all power cables before installing the CPU.

• Upon purchase of the motherboard, ensure that the PnP cap is on the socket and
the socket contacts are not bent. Contact your retailer immediately if the PnP cap
is missing, or if you see any damage to the PnP cap/socket contacts/motherboard
components. ASUS will shoulder the cost of repair only if the damage is shipment/
transit-related.

• Keep the cap after installing the motherboard. ASUS will process Return Merchandise

Authorization (RMA) requests only if the motherboard comes with the cap on the

LGA1155 socket.

• The product warranty does not cover damage to the socket contacts resulting from
incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP
cap.

To install an APU:

1. Locate the FM1 socket on the motherboard.

2. Press the lever sideways to unlock the
socket, then lift it up to a 90°-100° angle.

ASUS F1A55 R2.0

Socket lever

1-9

Ensure that the socket lever is lifted up to a 90°-100° angle; otherwise, the APU will not t

CPU_FAN

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

F1A55 R2.0

F1A55 R2.0 CPU fan connector

in completely.

3. Position the APU above the socket such that the APU
corner with the gold triangle matches the socket corner
with a small triangle.

4. Carefully insert the APU into the socket until it ts in place.

The APU ts only in one correct orientation.

DO NOT force the APU into the socket to
prevent bending the pins and damaging the
APU!

Small triangle

5. When the APU is in place, push down the socket
lever to secure the APU. The lever clicks on the side
tab to indicate that it is locked.

6. Install a APU heatsink and fan following the
instructions that comes with the heatsink package.
You can also refer to section 1.6.2 Installing
heatsink and fan for instructions.

7. Connect the CPU fan cable to the CPU_FAN connector on the motherboard.

Gold triangle

DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.

1-10

Chapter 1: Product introduction

1.4.2 Installing the heatsink and fan

Use only AMD-certied heatsink and fan assemblies.

To install the CPU heatsink and fan:

1. Place the heatsink on top of the installed CPU, ensuring that the heatsink ts properly

on the retention module base.

• The retention module base is already installed on the motherboard upon purchase.

• You do not have to remove the retention module base when installing the CPU or
installing other motherboard components.

• If you purchased a separate CPU heatsink and fan assembly, apply Thermal Interface
Material to the CPU heatsink or CPU before you install the heatsink and fan assembly.

CPU Fan

CPU Heatsink

Retention bracket

Retention Module Base

Retention bracket lock

Your boxed CPU heatsink and fan assembly should come with installation instructions for
the CPU, heatsink, and the retention mechanism. If the instructions in this section do not
match the CPU documentation, follow the latter.

ASUS F1A55 R2.0

1-11

2. Attach one end of the retention bracket to the retention module base.

1

3

4

5

2

3. Align the other end of the retention bracket to the retention module base. A clicking
sound denotes that the retention bracket is in place.

Ensure that the fan and heatsink assembly perfectly ts the retention mechanism module

base, otherwise you cannot snap the retention bracket in place.

4. Push down the retention bracket lock on the retention mechanism to secure the
heatsink and fan to the module base.

5. When the fan and heatsink assembly is in place, connect the CPU fan cable to the
connector on the motherboard labeled CPU_FAN.

DO NOT forget to connect the CPU fan connector! Hardware monitoring errors can occur if
you fail to plug this connector.

1-12

Chapter 1: Product introduction

1.5 System memory

F1A55 R2.0

F1A55 R2.0 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

1.5.1 Overview

This motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Module
(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:

Channel Sockets

Channel A DIMM_A1 and DIMM_A2

Channel B DIMM_B1 and DIMM_B2

1.5.2 Memory congurations

You may install 1GB, 2GB, and 4GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.

• 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.

• We recommend that you install the memory modules using the blue slots for better
overclocking capability.

• 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.

• When overclocking, some AMD CPU models may not support DDR3 1866 MHz or

higher frequency DIMMs.

• 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 if you want to install 4GB or more on the

motherboard.

®

OS, when you install 4GB

®

OS.

ASUS F1A55 R2.0

1-13

• This motherboard does not support DIMMs made up of 512 megabits (Mb) chips or
less.

• Memory modules with memory frequency higher than 2133 MHz and its
corresponding timing or the loaded X.M.P. 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.

• The maximum 64GB memory capacity can be supported with 16GB or above
DIMMs. ASUS will update the memory QVL once the DIMMs are available in the
market.

• The default memory operation frequency is dependent on its Serial Presence Detect
(SPD), which is the standard way of accessing information from a memory module.
Under the default state, some memory modules for overclocking may operate at a
lower frequency than the vendor-marked value. To operate at the vendor-marked
or at a higher frequency, refer to section 2.4 Ai Tweaker menu for manual memory
frequency adjustment.

• For system stability, use a more efcient memory cooling system to support a full

memory load (4 DIMMs) or overclocking condition.

F1A55 R2.0 Motherboard Qualied Vendors Lists (QVL)

DDR3 2250 (O.C.) MHz capability

Vendors Part No. Size SS/DS

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

Chip

Chip NO. Timing Voltage

Brand

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

DDR3 2200 (O.C.) MHz capability

DIMM socket support

Vendors Part No. Size SS/DS Chip Brand Chip NO. Timing Voltage

KINGMAX FLKE85F-B8KJA FEIH(XMP) 4GB(2 x 2GB) DS - - - 1.5V-1.7V • •

(Optional)

1 DIMM 2 DIMMs 4 DIMMs

DDR3 2133 (O.C.) MHz capability

Vendors Part No. Size

GEIL GU34GB2133C9DC(XMP) 4GB(2 x 2GB) DS - - 9-9-9-28 1.65V •
KINGSTON KHX2133C9AD3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - - 1.65V • •
KINGSTON KHX2133C9AD3X2K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9-11-9-27 1.65V •
KINGSTON KHX2133C9AD3T1FK4/8GX(XMP) 8GB(4 x 2GB) DS - - 9-11-9-27 1.65V • •
KINGSTON KHX2133C9AD3T1K4/8GX(XMP) 8GB(4 x 2GB) DS - - 9-11-9-27 1.65V •

SS/DSChip

Brand

Chip NO. Timing Voltage

DDR3 2000 (O.C.) MHz capability

Vendors Part No. Size

Apacer 78.AAGD5.9KD(XMP) 6GB(3 x 2GB) DS - - 9-9-9-27 1.65V • •
CORSAIR CMT6GX3M3A2000C8(XMP) 6GB(3 x 2GB) DS - - 8-9-8-24 1.65V • •
G.SKILL F3-16000CL9D-4GBFLS(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •
G.SKILL F3-16000CL6T-6GBPIS(XMP) 6GB(3 x 2GB) DS - - 6-9-6-24 1.65V • •
GEIL GUP34GB2000C9DC(XMP) 4GB(2 x 2GB) DS - - 9-9-9-28 1.65V • •
KINGSTON KHX2000C9AD3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - - 1.65V • •
KINGSTON KHX2000C9AD3W1K2/4GX(XMP) 4GB(2 x 2GB) DS - - - 1.65V • •
KINGSTON KHX2000C9AD3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 1.65V • •
KINGSTON KHX2000C9AD3W1K3/6GX(XMP) 6GB(3 x 2GB) DS - - - 1.65V • •
KINGSTON KHX2000C9AD3T1K3/6GX(XMP) 6GB(3 x 2GB) DS - - - 1.65V • •
OCZ OCZ3XTEP2000C9LV4GK 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • •

Transcend TX2000KLN-8GK(XMP) 8GB(2 x 4GB) DS - - - 1.6V • •

1-14

SS/DSChip

Chip NO. Timing Voltage

Brand

(continued on the next page)

Chapter 1: Product introduction

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

DDR3 1866 MHz capability

Vendors Part No. Size SS/DS

CORSAIR CMT4GX3M2A1866C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR CMZ8GX3M2A1866C9(XMP) 8GB(2 x 4GB) DS - - 9-10-9-27 1.50V • • •
G.SKILL F3-14900CL9D-8GBXL(XMP) 8GB(2 x 4GB) DS - - 9-10-9-28 1.5V • • •
KINGSTON KHX1866C9D3T1K3/3GX(XMP) 3GB(3 x 1GB) SS - - - 1.65V • • •
KINGSTON KHX1866C9D3T1K3/6GX(XMP) 6GB(3 x 2GB) DS - - - 1.65V • • •

OCZ OCZ3G1866LV4GK 4GB(2 x 2GB) DS - -

Chip

Chip NO. Timing Voltage

Brand

10-10­10-27

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

1.65V • • •

DDR3 1600 MHz capability

Vendors Part No. Size

A-Data AX3U1600XB2G79-2X(XMP) 4GB(2 x 2GB) DS - - 7-9-7-21 1.55V-1.75V • • •
A-Data AX3U1600GC4G9-2G(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.55V-1.75V • • •
A-Data AX3U1600XC4G79-2X(XMP) 8GB(2 x 4GB) DS - - 7-9-7-21 1.55V-1.75V • • •
CORSAIR TR3X3G1600C8D(XMP) 3GB(3 x 1GB) SS - - 8-8-8-24 1.65V • • •
CORSAIR CMD12GX3M6A1600C8(XMP) 12GB(6 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR CMP4GX3M2C1600C7(XMP) 4GB(2 x 2GB) DS - - 7-8-7-20 1.65V • • •
CORSAIR CMX4GX3M2A1600C9(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR TR3X6G1600C8 G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR TR3X6G1600C8D G(XMP) 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • • •
CORSAIR CMP8GX3M2A1600C9(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.65V • • •
CORSAIR CMX8GX3M4A1600C9(XMP) 8GB(4 x 2GB) DS - - 9-9-9-24 1.65V • • •
Crucial BL25664BN1608.16FF(XMP) 6GB(3 x 2GB) DS - - - - • • •
G.SKILL F3-12800CL7D-4GBRH(XMP) 4GB(2 x 2GB) SS - - 7-7-7-24 1.6V • • •
G.SKILL F3-12800CL7D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 7-7-8-24 XMP 1.35V • • •
G.SKILL F3-12800CL7D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 7-8-7-24 1.6V • • •
G.SKILL F3-12800CL8D-4GBRM(XMP) 4GB(2 x 2GB) DS - - 8-8-8-24 1.60V • • •
G.SKILL F3-12800CL9D-4GBECO(XMP) 4GB(2 x 2GB) DS - - 9-9-9-24 XMP 1.35V • • •
G.SKILL F3-12800CL9T-6GBNQ(XMP) 6GB(3 x 2GB) DS - - 9-9-9-24 1.5V~1.6V • • •
G.SKILL F3-12800CL7D-8GBRH(XMP) 8GB(2 x 4GB) DS - - 7-8-7-24 1.6V • • •
G.SKILL F3-12800CL8D-8GBECO(XMP) 8GB(2 x 4GB) DS - - 8-8-8-24 XMP 1.35V • • •
G.SKILL F3-12800CL9D-8GBRL(XMP) 8GB(2 x 4GB) DS - - 9-9-9-24 1.5V • • •
GEIL GET316GB1600C9QC(XMP) 16GB(4 x 4GB) DS - - 9-9-9-28 1.6V • • •
Kingmax FLGE85F-B8KJ9A FEIS(XMP) 2GB DS - - - - • • •
Kingmax FLGE85F-B8MF7 MEEH(XMP) 2GB DS - - 7 - • • •
KINGSTON KHX1600C9D3K3/12GX(XMP) 12GB(3 x 4GB) DS - - 9-9-9-27 1.65V • • •
KINGSTON KHX1600C9AD3/2G 2GB DS - - - 1.65V • • •

KINGSTON KVR1600D3N11/2G-ES 2GB DS KTC

KINGSTON KHX1600C7D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - - 1.65V • • •
KINGSTON KHX1600C8D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65V • • •
KINGSTON KHX1600C8D3T1K2/4GX(XMP) 4GB(2 x 2GB) DS - - 8 1.65V • • •
KINGSTON KHX1600C9D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 1.65V • • •
KINGSTON KHX1600C9D3LK2/4GX(XMP) 4GB(2 x 2GB) DS - - 9 XMP 1.35V • • •
KINGSTON KHX1600C9D3T1K3/6GX(XMP) 6GB(3 x 2GB) DS - - - 1.65V • • •
KINGSTON KHX1600C9D3K3/6GX(XMP) 6GB(3 x 2GB) DS - - 9 1.65V • • •
KINGSTON KHX1600C9D3T1BK3/6GX(XMP) 6GB(3 x 2GB) DS - - 9-9-9-27 1.65V • • •
OCZ OCZ3BE1600C8LV4GK 4GB(2 x 2GB) DS - - 8-8-8-24 1.65V • • •
OCZ OCZ3G16004GK 4GB(2 x 2GB) DS - - 8-8-8-24 1.7V • • •
OCZ OCZ3OB1600LV4GK 4GB(2 x 2GB) DS - - - 1.65V • • •
OCZ OCZ3G1600LV6GK 6GB(3 x 2GB) DS - - 8-8-8-24 1.65V • •
Super

WA160UX6G9 6GB(3 x 2GB) DS - - 9 - • • •

Talent

SS/DSChip

Chip NO. Timing Voltage

Brand

D1288JPN
DPLD9U

11-11-11-28 1.35V-1.5V • • •

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

ASUS F1A55 R2.0

(continued on the next page)

1-15

DDR3 1333 MHz capability

1.25V-

1.35V(low
voltage)

1.35V(low
voltage)

1.3V(low
voltage)

1.35V(low
voltage)

1.35V(low
voltage)

DIMM socket support
(Optional)

1 DIMM 2 DIMMs 4 DIMMs

• • •

• • •

• • •

• • •

• • •

Vendors Part No. Size

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

A-Data AXDU1333GC2G9-2G(XMP) 4GB(2 x 2GB) SS - - 9-9-9-24

A-Data AD63I1C1624EV 4GB DS A-Data 3CCA-1509A - - • • •
Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808DEWSBG - - • • •
Apacer 78.A1GC6.9L1 2GB DS Apacer AM5D5808FEQSBG 9 - • • •
Apacer 78.B1GDE.9L10C 4GB DS Apacer AM5D5908CEHSBG - - • • •
CORSAIR TR3X3G1333C9 G 3GB(3 x 1GB) SS - - 9-9-9-24 1.50V • • •
CORSAIR TR3X6G1333C9 G 6GB(3x 2GB) SS - - 9-9-9-24 1.50V • • •
CORSAIR CMD24GX3M6A1333C9(XMP) 24GB(6x4GB) DS - - 9-9-9-24 1.60V • • •
CORSAIR TW3X4G1333C9D G 4GB(2 x 2GB) DS - - 9-9-9-24 1.50V • • •
Crucial CT12864BA1339.8FF 1GB SS Micron 9FF22D9KPT 9 - • • •
Crucial CT25664BA1339.16FF 2GB DS Micron 9KF27D9KPT 9 - • • •
Crucial BL25664BN1337.16FF (XMP) 6GB(3 x 2GB) DS - - 7-7-7-24 1.65V • • •

ELPIDA EBJ10UE8EDF0-DJ-F 1GB SS ELPIDA J1108EDSE-DJ-F -

G.SKILL F3-10600CL8D-2GBHK(XMP) 1GB SS G.SKILL - - - • • •
G.SKILL F3-10600CL9D-2GBNQ 2GB(2 x 1GB) SS - - 9-9-9-24 1.5V • • •

F3-10666CL8D-

G.SKILL

4GBECO(XMP)
G.SKILL F3-10666CL7D-8GBRH(XMP) 8GB(2 x 4GB) DS - - 7-7-7-21 1.5V • • •
GEIL GV32GB1333C9DC 2GB(2 x 1GB) DS - - 9-9-9-24 1.5V • • •

GEIL GG34GB1333C9DC 4GB(2 x 2GB) DS GEIL GL1L128M88BA12N 9-9-9-24

GEIL GV34GB1333C9DC 4GB(2 x 2GB) DS - - 9-9-9-24 1.5V • • •
GEIL GVP34GB1333C7DC 4GB(2 x 2GB) DS - - 7-7-7-24 1.5V • • •

Hynix HMT112U6TFR8A-H9 1GB SS Hynix H5TC1G83TFRH9A -

Hynix HMT325U6BFR8C-H9 2GB SS Hynix H5TQ2G83BFRH9C - - • • •

Hynix HMT125U6TFR8A-H9 2GB DS Hynix H5TC1G83TFRH9A -

Hynix HMT351U6BFR8C-H9 4GB DS Hynix H5TQ2G83BFRH9C - - • • •
Kingmax FLFD45F-B8KL9 NAES 1GB SS Kingmax KKB8FNWBFGNX-27A - - • • •
Kingmax FLFE85F-C8KF9 CAES 2GB SS Kingmax KFC8FMFXF-DXX-15A - - • • •
Kingmax FLFE85F-C8KL9 NAES 2GB SS Kingmax KFC8FNLXF-DXX-15A - - • • •
Kingmax FLFE85F-C8KM9 NAES 2GB SS Kingmax KFC8FNMXF-BXX-15A - - • • •
Kingmax FLFE85F-B8KL9 NEES 2GB DS Kingmax KKB8FNWBFGNX-26A - - • • •
Kingmax FLFF65F-C8KL9 NEES 4GB DS Kingmax KFC8FNLXF-DXX-15A - - • • •
Kingmax FLFF65F-C8KM9 NEES 4GB DS Kingmax KFC8FNMXF-BXX-15A - - • • •
Kingston KVR1333D3N9/1G(low prole) 1GB SS ELPIDA J1108BDBG-DJ-F 9 1.5V • • •
Kingston KVR1333D3N9/2G(low prole) 2GB SS Hynix H5TQ2G83AFRH9C 9 - • • •
Kingston KVR1333D3N9/2G(low prole) 2GB DS ELPIDA J1108BFBG-DJ-F 9 1.5V • •
Kingston KVR1333D3N9/2G 2GB DS KTC D1288JPNDPLD9U 9 1.5V • • •
Kingston KVR1333D3N9/2G 2GB DS ELPIDA J1108BDSE-DJ-F 9 1.5V • • •
Kingston KHX1333C7D3K2/4GX(XMP) 4GB(2 x 2GB) DS - - 7 1.65V • • •

KHX1333C9D3UK2/
Kingston

4GX(XMP)
Kingston KVR1333D3N9/4G(low prole) 4GB DS ELPIDA J2108BCSE-DJ-F 9 1.5V • • •
Kingston KVR1333D3N9/4G 4GB DS Hynix H5TQ2G83AFR - - • • •
Micron MT4JTF12864AZ-1G4D1 1GB SS Micron OJD12D9LGQ - - • • •
Micron MT8JTF12864AZ-1G4F1 1GB SS Micron 9FF22D9KPT 9 - • • •
Micron MT8JTF25664AZ-1G4D1 2GB SS Micron OJD12D9LGK - - • • •
Micron MT16JTF25664AZ-1G4F1 2GB DS Micron 9KF27D9KPT 9 - • • •
Micron MT16JTF51264AZ-1G4D1 4GB DS Micron OLD22D9LGK - - • • •
OCZ OCZ3F13334GK 4GB(2 x 2GB) DS - - 9-9-9-20 1.7V • • •
OCZ OCZ3P1333LV4GK 4GB(2 x 2GB) DS - - 7-7-7-20 1.65V • • •
OCZ OCZ3P1333LV6GK 6GB(3 x 2GB) DS - - 7-7-7-20 1.65V • • •
PSC AL7F8G73F-DJ2 1GB SS PSC A3P1GF3FGF - - • • •
PSC AL8F8G73F-DJ2 2GB DS PSC A3P1GF3FGF - - • • •
Samsung M378B2873FHS-CH9 1GB SS Samsung K4B1G0846F - - • • •
Samsung M378B5773DH0-CH9 2GB SS Samsung K4B2G0846D - - • • •
Samsung M378B5673FH0-CH9 2GB DS Samsung K4B1G0846F - - • • •
Samsung M378B5273CH0-CH9 4GB DS Samsung K4B2G0846C - - • • •
Super Talent W1333UA1GH 1GB SS Hynix H5TQ1G83TFR 9 - • • •
Super Talent W1333UB2GS 2GB DS Samsung K4B1G0846F 9 - • • •
Super Talent W1333UB4GS 4GB DS Samsung K4B2G0846C - - • • •
Super Talent W1333UX6GM 6GB(3x 2GB) DS Micron 0BF27D9KPT 9-9-9-24 1.5V • • •
Transcend JM1333KLN-2G 2GB SS Micron 0YD77D9LGK - - • • •
Transcend JM1333KLU-2G 2GB DS Transcend TK243PDF3 - - • • •

Transcend TS256MLK64V3U 2GB DS Micron 9GF27D9KPT - - • •

4GB(2 x 2GB) DS - - 8-8-8-24 XMP 1.35V • • •

4GB(2 x 2GB) DS - - 9 XMP 1.25V • • •

SS/DSChip

Brand

Chip NO. Timing Voltage

(continued on the next page)

1-16

Chapter 1: Product introduction

DDR3 1066 MHz capability

DIMM socket support

1.35V(low
voltage)

1.35V(low
voltage)

(Optional)
1 DIMM 2 DIMMs 4 DIMMs

• • •

• • •

Vendors Part No. Size SS/DS Chip Brand Chip NO. Timing Voltage

Crucial CT12864BA1067.8FF 1GB SS Micron 9GF22D9KPT 7 - • • •
Crucial CT25664BA1067.16FF 2GB DS Micron 9HF22D9KPT 7 - • • •

ELPIDA EBJ10UE8EDF0-AE-F 1GB SS ELPIDA J1108EDSE-DJ-F -

ELPIDA EBJ21UE8EDF0-AE-F 2GB DS ELPIDA J1108EDSE-DJ-F -

KVR1066D3N7/1G(low

KINGSTON

prole)

KINGSTON KVR1066D3N7/2G 2GB DS ELPIDA J1108BDSE-DJ-F 7 1.5V • • •
KINGSTON KVR1066D3N7/4G 4GB DS Hynix H5TQ2G83AFR 7 1.5V • • •
Micron MT8JTF12864AZ-1G1F1 1GB SS Micron 9GF22D9KPT 7 - • • •

Micron MT16JTF25664AZ-1G1F1 2GB DS Micron 9HF22D9KPT 7 - • • •

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

SS: Single-sided / DS: Double-sided

DIMM support:

• A*: Supports one module inserted into any slot as single-channel memory conguration.

• B*: Supports one pair of modules inserted into either the blue slots or the black slots as

one pair of dual-channel memory conguration.

• C*: Supports two pairs of modules inserted into both the blue slots and the black slots as

two pairs of dual-channel memory conguration.

Visit the ASUS website at www.asus.com for the latest QVL.

ASUS F1A55 R2.0

1-17

1.5.3 Installing a DIMM

Unplug the power supply before adding or removing DIMMs or other system components.
Failure to do so can cause severe damage to both the motherboard and the components.

1. Press the retaining clips outward to
unlock a DIMM socket.

2. Align a DIMM on the socket such that
the notch on the DIMM matches the
DIMM slot key on the socket.

1

Unlocked retaining clip

A DIMM is keyed with a notch so that it ts in only one direction. DO NOT force a DIMM into

a socket in the wrong direction to avoid damaging the DIMM.

3. Firmly insert the DIMM into the socket
until the retaining clips snap back in place
and the DIMM is properly seated.

Locked Retaining Clip

1.5.4 Removing a DIMM

To remove a DIMM:

1. Simultaneously press the retaining clips
outward to unlock the DIMM.

2

DIMM notch

1

DIMM slot key

3

Support the DIMM lightly with

your ngers when pressing the

retaining clips. The DIMM might

get damaged when it ips out

with extra force.

2. Remove the DIMM from the socket.

1-18

2

1

1

DIMM notch

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.

1.6.3 PCI slots

The PCI slots support 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 slots

This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that

comply with the PCI Express specications.

ASUS F1A55 R2.0

1-19

1.6.5 PCI Express x16 slots

This motherboard supports two PCI Express x16 graphics cards that comply with the PCI

Express specications.

VGA conguration

Single VGA/PCIe card

PCI Express operating mode

PCIe x16_1 PCIe x16_2

x16
(Recommended for single VGA card)

N/A

Dual VGA/PCIe card x16 x4

• In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16
graphics card to get better performance.

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

See page 1-21 for details.

• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when
using multiple graphics cards for better thermal environment.

IRQ Assignments

A B C D E F G H

PCIEX16 - - share - - - - -
PCIEX18 - - - share - - - -
PCIEX4 share - - - - - - -
PCIEX4/lane2 - share - - - - - -
Mini-PCIE - - - share - - - -
OnChip IGP - - share - - - - -
Llano PicExBR 02 - - share - - - - -
Llano PicExBR 03 - - - share - - - -
Llano PicExBR 04 share - - - - - - -
Llano PicExBR 08 - - - share - - - -
RTL8111E - share - - - - - -
USB3.0 - - - share - - - -
PCI Slot - - - - share - - -
PCI Slot2 - - - - - share - -
PCI Slot3 - - - - - - share -
HD Audio - - share - - - - -
SATA Controller - - - share - - - -
USB1 OHCI Controller 0 - - share - - - - -
USB2 OHCI Controller 1 - - share - - - - -
USB3 OHCI Controller 0 - - share - - - - -

1-20

Chapter 1: Product introduction

1.7 Jumpers

F1A55 R2.0

F1A55 R2.0 Clear RTC RAM

1 2 2 3

Normal

(Default)

Clear RTC

CLRTC

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-

ASUS F1A55 R2.0

1-21

Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default

12

11 1013

2

9

1

14

3 4 5 6

78

position. Removing the cap will cause system boot failure!

• If the steps above do not help, remove the onboard battery and move the jumper
again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the
battery.

• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R.) feature.
Shut down and reboot the system, then the BIOS automatically resets parameter
settings to default values.

1.8 Connectors

1.8.1 Rear panel connectors

1. PS/2 Mouse port (green). This port is for a PS/2 mouse.

2. LAN (RJ-45) port.

through a network hub.

LAN port LED indications

Activity/Link LED Speed LED
Status Description Status Description

OFF No link OFF 10Mbps connection
ORANGE Linked ORANGE 100Mbps connection
BLINKING Data activity GREEN 1Gbps connection

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

Activity Link

LED

LAN port

Speed

LED

1-22

Chapter 1: Product introduction

3. Center/Subwoofer port (orange). This port connects to the center/subwoofer

speakers.

4. Rear Speaker Out port (black).

This port connects to the rear speakers in the 4, 6,

and 8-channel audio congurations.

5. Line In port (light blue).

This port connects to the tape, CD, DVD player, or other

audio sources.

6. Line Out port (lime).

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

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

7. Microphone port (pink)

8. Side Speaker Out port (gray).

. This port connects to a microphone.

This port connects to the side speakers in the 8-

channel audio conguration.

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

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

Port

Headset

2-channel

4-channel 6-channel 8-channel

Light Blue Line In Line In Line In Line In

Lime Line Out Front Speaker Out Front Speaker Out Front Speaker Out

Pink Mic In Mic In Mic In Mic In

Orange – – Center/Subwoofer Center/Subwoofer

Black – Rear Speaker Out Rear Speaker Out Rear Speaker Out

Gray – – – Side Speaker Out

9. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB

2.0/1.1 devices.

10. USB 3.0 ports 1 and 2

. These two 9-pin Universal Serial Bus (USB) ports are for USB

3.0 devices.

• DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows
operating system.

• Due to USB 3.0 controller limitations, USB 3.0 devices can only be used under a
Windows® OS environment and after USB 3.0 driver installation.

• USB 3.0 devices can only be used for data storage.

• We strongly recommend that you connect USB 3.0 devices to USB 3.0 ports for faster
and better performance for your USB 3.0 devices.

ASUS F1A55 R2.0

®

1-23

11. USB 2.0 ports 3 and 4. These two 9-pin Universal Serial Bus (USB) ports are for USB

F1A55 R2.0

F1A55 R2.0 Fan connectors

CPU_FAN

CHA_FAN1

CPU FAN PWM

CPU FAN IN

CPU FAN PWR

GND

CHA_FAN2

CHA FAN DC Mode

CHA FAN IN

CHA FAN PWR

GND

GND
CHA FAN PWR
CHA FAN IN
CHA FAN DC Mode

GND
+12V
Rotation

PWR_FAN

2.0/1.1 devices.

12. Optical S/PDIF Out port. This port connects an external audio output device via an

optical S/PDIF cable.

13. USB 2.0 ports 5 and 6.

These two 4-pin Universal Serial Bus (USB) ports are for USB

2.0/1.1 devices.

14. PS/2 Keyboard port (purple).

This port is for a PS/2 keyboard.

1.8.2 Internal connectors

1. Power, CPU and chassis fan connectors (3-pin PWR FAN, 4-pin CPU_FAN, and
4-pin CHA_FAN1/2)

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_FAN1/2 connectors support the ASUS Fan Xpert

• If you install two VGA cards, we recommend that you plug the rear chassis fan cable

1-24

feature.

to the motherboard connector labeled CHA_FAN1/2 for better thermal environment.

Chapter 1: Product introduction

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

F1A55 R2.0

F1A55 R2.0 ATX power connectors

EATXPWR

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

PIN 1

+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 R2.0

1-25

3. Serial ATA 3.0 Gb/s connectors (7-pin SATA3G_1~6)

SATA3G_1 SATA3G_2

GND

RSATA_RXN1

RSATA_RXP1

GND

RSATA_TXN1

RSATA_TXP1

GND

GND

RSATA_RXN2

RSATA_RXP2

GND

RSATA_TXN2

RSATA_TXP2

GND

SATA3G_3 SATA3G_4

GND

RSATA_RXN3

RSATA_RXP3

GND

RSATA_TXN3

RSATA_TXP3

GND

GND

RSATA_RXN4

RSATA_RXP4

GND

RSATA_TXN4

RSATA_TXP4

GND

SATA3G_5 SATA3G_6

GND

RSATA_RXN5

RSATA_RXP5

GND

RSATA_TXN5

RSATA_TXP5

GND

GND

RSATA_RXN6

RSATA_RXP6

GND

RSATA_TXN6

RSATA_TXP6

GND

F1A55 R2.0

F1A55 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, or RAID 10 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 versions before using Serial

1-26

Chapter 1: Product introduction

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

F1A55 R2.0

F1A55 R2.0 Serial port (COM1) connector

PIN 1

COM1

DCD

TXD

GND

RTS

RI

RXD

DTR

DSR

CTS

SPDIF_OUT

+5V

SPDIFOUT

GND

F1A55 R2.0

F1A55 R2.0 Digital audio connector

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.

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

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.

ASUS F1A55 R2.0

1-27

6. System panel connector (20-8 pin PANEL)

F1A55 R2.0

F1A55 R2.0 System panel connector

PIN 1

* Requires an ATX power supply

PLED SPEAKER

PLED+

PLED-

+5V

Ground

Ground

Speaker

IDE_LED+

IDE_LED-

PWR

Ground

Reset

Ground

PANEL

IDE_LED PWRSW RESET

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.

• System warning speaker (4-pin SPEAKER)

This 4-pin connector is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.

• ATX power button/soft-off button (2-pin PWRSW)

This connector is for the system power button.

• Reset button (2-pin RESET)

This 2-pin connector is for the chassis-mounted reset button for system reboot without
turning off the system power.

1-28

Chapter 1: Product introduction

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

F1A55 R2.0

F1A55 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

F1A55 R2.0

F1A55 R2.0 USB2.0 connectors

USB+5V

USB_P12-

USB_P12+

GND

NC

USB+5V

USB_P11-

USB_P11+

GND

USB1112

PIN 1

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

This connector is for a chassis-mounted front panel audio I/O module that supports

either a 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.

8. USB 2.0 connectors (10-1 pin USB78, USB910, USB1112)

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cations and 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.

ASUS F1A55 R2.0

1-29

1.9 Onboard switch

F1A55 R2.0

F1A55 R2.0 MemOK! switch

Onboard switches allow you to ne-tune performance when working on a bare or open-

case system. This is ideal for overclockers and gamers who continually change settings to
enhance system performance.

MemOK! switch

Installing DIMMs that are incompatible with the motherboard may cause system boot
failure, and cause the DRAM_LED near the MemOK! to switch lights continuously.
Press and hold the MemOK! switch until the DRAM_LED starts blinking to begin
automatic memory compatibility tuning for successful boot.

• Refer to section 1.12 Onboard LEDs for the exact location of the DRAM_LED.

• The DRAM_LED also lights up when the DIMM is not properly installed. Turn off the
system and reinstall the DIMM before using the MemOK! function.

• The MemOK! switch does not function under a Windows® OS environment.

• During the tuning process, the system loads and tests failsafe memory settings. It
takes about 30 seconds for the system to test one set of failsafe settings. If the test
fails, the system reboots and tests the next set of failsafe settings. The blinking speed
of the DRAM_LED increases, indicating different test processes.

• Due to memory tuning requirements, the system automatically reboots when each
timing set is tested. If the installed DIMMs still fail to boot after the whole tuning
process, the DRAM_LED lights up continuously. Replace the DIMMs with ones

recommended in the Memory QVL (Qualied Vendors Lists) in this user manual or on

the ASUS website at www.asus.com.

• If you turn off the computer and replace DIMMs during the tuning process, the system
continues memory tuning after turning on the computer. To stop memory tuning, turn
off the computer and unplug the power cord for about 5–10 seconds.

• If your system fail to boot due to BIOS overclocking, press the MemOK! switch to boot
and load BIOS default settings. A message will appear during POST reminding you
that the BIOS has been restored to its default settings.

• We recommend that you download and update to the latest BIOS version from the
ASUS website at www.asus.com after using the MemOK! function.

1-30

Chapter 1: Product introduction

1.10 Onboard LEDs

SB_PWR

ON

Standby Power Powered Off

OFF

F1A55 R2.0

F1A55 R2.0 Onboard LED

F1A55 R2.0

F1A55 R2.0 DRAM LED

DRAM LED

1. 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.

2. DRAM LED

The DRAM LED checks the DRAM in sequence during the motherboard boot process.
If an error is found, the LED next to the error device will light up until the problem is
solved. This user-friendly design provides an intuitive way to locate the root problem
quickly.

ASUS F1A55 R2.0

1-31

1.11 Software support

1.11.1 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.

1.11.2 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

1-32

Click an icon to
display Support
DVD/motherboard
information

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.

Chapter 1: Product introduction

BIOS information

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 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 formatted using FAT32/16 on a single partition

only.

• DO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!

Chapter 2: Getting started

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

F1A55-R2-ASUS-0309.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 settingS. 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 R2.0

2-3

2.1.4 ASUS BIOS Updater

The ASUS BIOS Updater allows you to update BIOS in a 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 formatted using

FAT32/16 on a single partition.

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

2.

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).

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Chapter 2: Getting started

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.

F1A55 R2.0

0309

F1A55-R2-ASUS-0309.CAP 8194 2012-05-16 15:25:48

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.

ASUS F1A55 R2.0

2-5

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 you
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 1.9 Jumpers for information
on how to erase the RTC RAM.

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

2-6

Chapter 2: Getting started

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.

Displays the CPU/motherboard
temperature, CPU voltage output,
and CPU/chassis fan speed

Selects the boot
device priority

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

• 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.

Selects the display language
of the BIOS setup program

Silent mode Standard

mode

Selects the boot
device priority

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

Loads
optimized
default

Turbo mode

ASUS F1A55 R2.0

2-7

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

Conguration eldsMenu items

Pop-up window

General helpMenu bar

Navigation keys

Menu bar

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

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

Advanced For changing the advanced system settings

Monitor

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

For displaying the system temperature, power status, and changing the
fan settings

2-8

Chapter 2: Getting started

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.

ASUS F1A55 R2.0

2-9

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 1.9 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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Chapter 2: Getting started

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.

ASUS F1A55 R2.0

2-11

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 the following items:

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Chapter 2: Getting started

Target CPU Speed : xxxxMHz

Displays the CPU Turbo-Mode speed.

Target DRAM Speed : xxxxMHz

Displays the current DRAM speed.

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: [DDR3­800MHz][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 UMI (Unied Media

Interface). 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]

ASUS F1A55 R2.0

2-13

EPU Setting [Auto]

This item appears only when you set the EPU Power Saving Mode item to [Enabled] and

allows you to select the EPU power saving mode. Conguration options: [Auto] [Light Power

Saving Mode] [Medium Power Saving Mode] [Max Power Saving Mode]

2.4.5 OC Tuner [OK]

OC Tuner automatically overclocks the frequency and voltage of CPU and DRAM for

enhancing the system performance. Conguration options: [OK] [Cancel]

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 Intel VRM specications, and affects CPU voltage. The CPU working

voltage will decrease proportionally to CPU loading. Higher value gets a higher voltage, and
a 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]

Allows you to select the CPU/NB Load-line mode. Conguration options: [Auto] [Regular]

[High] [Extreme]

VRM Fixed Frequency [VRM Fixed Frequency Mode]

Allows you to set a xed VRM frequency. 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 Mode. The
thermal conditions should be monitored.

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Chapter 2: Getting started

2.4.8 CPU Voltage [Offset Mode]

[Offset Mode] To offset the voltage by a positive or negative value.

2.4.9 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 0.003125V 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.

2.4.10 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 0.003125V to 0.500V
with a 0.003125V interval.

2.4.11 DRAM Voltage [Auto]

Allows you to set the DRAM voltage. The values range from 1.35V to 2.30V with a 0.1V
interval.

2.4.12 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.

2.4.13 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.

2.4.14 APU 1.2V 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.

ASUS F1A55 R2.0

2-15

2.4.15 VDDA Voltage [Auto]

Allows you to set the VDDA voltage. The values range from 2.5000V to 2.8000V with a

0.01V 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.

2.4.16 APU Spread Spectrum [Auto]

[Auto] Automatic conguration.

[Disabled] Enhances the overclocking ability.

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

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.

2-16

Chapter 2: Getting started

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]

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 [Enabled]

When this item is set to [Enabled], the system’s processor operates at the lowest power and

operating state (C-state). Conguration options: [Disabled] [Enabled]

with extended CPUID functions.

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: [Disable link]

[Enabled]

ASUS F1A55 R2.0

2-17

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 [RAID] / [AHCI]

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: [RAID] / [AHCI], [IDE]

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.

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] [Disable link]

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.

Legacy USB3.0 Support [Enabled]

[Enabled] Enables the support for USB 3.0 devices on legacy operating systems

[Disabled] Disables the function.

2-18

(OS).

Chapter 2: Getting started

EHCI Hand-off [Disabled]

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

[Disabled] Disables the function.

2.5.4 NB Conguration

iGPU Multi-Monitor [Disabled]

Allows you to enable or disable the iGPU Multi-Monitor. For Lucid Virtu Universal MVP
function support, set this item to [Enabled] to empower both the integrated and discrete

graphic cards. The iGPU shared memory size will be xed at 64MB.

Conguration options: [Disabled] [Enabled]

Primary Video Device [PCIE / PCI Video]

Selects the primary display device. Conguration options: [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 HD Audio Device.

[Disabled] Disables the HD Audio Device.

The following two items appear only when you set the HD Audio Controller 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

SPDIF Out Type [SPDIF]

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

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

ASUS F1A55 R2.0

2-19

Realtek LAN Controller [Enabled]

[Enabled] Enables the Realtek LAN controller.

[Disabled] Disables the 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 PXE OptionRom of the Realtek LAN controller.

Conguration options: [Enabled] [Disabled]

Asmedia USB 3.0 Controller [Enabled]

[Enabled] Enables the onboard USB 3.0 controller.

[Disabled] Disables the controller.

Asmedia USB 3.0 Battery Charging Support [Disabled]

This item appears only when the Asmedia USB 3.0 Controller item is set to [Enabled].

[Enabled] Enables the Asmedia USB 3.0 battery charging function.

[Disabled] Disables this function

Serial Port Conguration

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 [Auto]

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]

2.5.6 APM

Power On By PS/2 Keyboard [Disabled]

[Disabled] Disables the Power On by a PS/2 keyboard.

[Space Bar] Sets the Space Bar on the PS/2 keyboard to turn on the system.

[Ctrl-Esc] Sets the Ctrl+Esc key on the PS/2 keyboard to turn on the system.

[Power Key] Sets Power key on the PS/2 keyboard to turn on the system. This feature

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

2-20

requires an ATX power supply that provides at least 1A on the +5VSB lead.

before the AC power loss.

Chapter 2: Getting started

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:

[Disable Link] [Enabled]

The following two items appear only when you set the previous item to [Enabled].

Ipv4 PXE Support [Enabled]

This item allows user to disable or enable the Ipv4 PXE Boot support. Conguration options:

[Disable Link] [Enable]

Ipv6 PXE Support [Enabled]

This item allows user to disable or enable the Ipv6 PXE Boot support. Conguration options:

[Disable Link] [Enable]

ASUS F1A55 R2.0

2-21

2.6 Monitor menu

The Monitor menu displays the system temperature/power status, and allows you to change
the fan settings.

Scroll down to display the following items:

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.

2-22

Chapter 2: Getting started

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 [200 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]

CPU Fan Prole [Standard]

This item appears only when you enable the CPU Q-Fan Control feature and allows you to
set the appropriate performance level of the CPU fan.

[Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on

[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.

CPU Upper Temperature [70]

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 [20]

Displays the lower limit of the CPU temperature.

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.

the CPU temperature.

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

2.6.4 Chassis Q-Fan Control [Enabled]

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

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

ASUS F1A55 R2.0

2-23

Chassis Fan Speed Low Limit [600 RPM]

This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to disable or set the chassis fan warning speed.

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

Chassis Fan Prole [Standard]

This item appears only when you enable the Chassis Q-Fan Control feature and allows you
to set the appropriate performance level of the chassis fan.

[Standard] Sets to [Standard] to make the chassis fan automatically adjust depending

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

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

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

Chassis Upper Temperature [70]

Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values
range from 20ºC to 90ºC.

Chassis Fan Max. Duty Cycle(%) [100]

Use the <+> and <-> keys to adjust the maximum chassis fan duty cycle. The values
range from 40% to 100%. When the chassis temperature reaches the upper limit, the
chassis fan will operate at the maximum duty cycle.

Chassis Lower Temperature [20]

Displays the lower limit of the chassis temperature.

CPU Fan Min. Duty Cycle(%) [40]

Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle. The values
range from 40% to 100%. When the chassis temperature is under 40ºC, the chassis
fan will operate at the minimum duty cycle.

on the chassis temperature.

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

2.6.5 CPU 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.

2.6.6 Anti Surge Support [Enabled]

This item allows you to enable or disable the Anti Surge function.

Conguration options: [Disabled] [Enabled]

2-24

Chapter 2: Getting started

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]

ASUS F1A55 R2.0

2-25

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]

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 [Enabled both UEFI and Legacy]

[Enable both UEFI and Legacy] Enables both UEFI and Legacy boot.

[Disable UEFI] Enables the Legacy boot, and disables the UEFI boot.

[Disable Legacy] Enables the UEFI booth, and disables the Legacy boot.

2.7.7 PCI ROM Priority [Legacy ROM]

[Legacy ROM] Launch Legacy ROM

[EFI Compatibe ROM] Launch UEFI 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, do any of the following:

• Press <F5> when ASUS Logo appears.

• Press <F8> after POST.

2.7.9 Boot Override

These items displays the available devices. The number of device items that appears on
the screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.

2-26

Chapter 2: Getting started

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_A2]

ASUS F1A55 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 EFI Shell application (shellx64.e) from one of
the available devices that have a lesystem.

2-28

Chapter 2: Getting started

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.

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.

F1A55 R2.0

A-1

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

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.

A-2

Appendices

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.

F1A55 R2.0

A-3

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 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 : Jun. 25, 2012

Ver. 110101

EC Declaration of Conformity

We, the undersigned,

Manufacturer:

ASUSTek COMPUTER INC.

Address, City:

No. 150, LI-TE RD., PEITOU, TAIPEI 112, TAIWAN R.O.C.

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 R2.0

conform with the essential requirements of the following directives:

2004/108/EC-EMC Directive

EN 55022:2006+A1:2007

EN 61000-3-2:2006

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

EN 55024:1998+A1:2001+A2:2003

EN 61000-3-3:2008

EN 55020:2007

1999/5/EC-R &TTE Directive

EN 300 328 V1.7.1(2006-10)

EN 300 440-1 V1.4.1(2008-05)

EN 300 440-2 V1.2.1(2008-03)

EN 301 511 V9.0.2(2003-03)

EN 301 908-1 V3.2.1(2007-05)

EN 301 908-2 V3.2.1(2007-05)

EN 301 893 V1.4.1(2005-03)

EN 50360:2001

EN 50371:2002

EN 62311:2008

EN 50385:2002

EN 301 489-1 V1.8.1(2008-04)

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

EN 301 489-4 V1.3.1(2002-08)

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 V1.4.1(2007-09)

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

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

EN 301 357-2 V1.3.1(2006-05)

EN 302 623 V1.1.1(2009-01)

2006/95/EC-LVD Directive

EN 60950-1 / A11:2009

EN 60950-1 / A12:2011

EN 60065:2002+A1:2006+A11:2008

EN 60065:2002 / A12:2011

2009/125/EC-ErP Directive

Regulation (EC) No. 1275/2008

EN 62301:2005

Regulation (EC) No. 642/2009

EN 62301:2005

Regulation (EC) No. 278/2009

EN 62301:2005

CE marking

Declaration Date: Jun. 25, 2012

Year to begin affixing CE marking: 2012

Position : CEO

Name : Jerry Shen

Signature :

__________

EC conformit

y

markin

g)

A-4

Appendices