ASUS F2A85-M2 User Manual

F2A85-M2

Motherboard

E7827
First Edition

January 2013

Copyright © 2013 ASUSTeK COMPUTER INC. All Rights Reserved.

No part of this manual, including the products and software described in it, may be reproduced,
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means, except documentation kept by the purchaser for backup purposes, without the express written
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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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ii

Contents

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

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

F2A85-M2 specications summary ..........................................................................ix

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

Product introduction

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

1.1.1 Product highlights ...........................................................................

1.1.2 Innovative ASUS 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 APU ............................................................................

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

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

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

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

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

1.5.4 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 slot .........................................................................................

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

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

1.7 Jumpers

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

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

1.8.2 Internal connectors .......................................................................

1.9 Onboard LEDs ............................................................................................

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

1-1

1-2

1-4

1-5

1-5

1-5

1-6

1-7

1-7

1-8

1-9

1-11

1-11

1-11

1-18

1-18

1-19

1-19

1-19

1-19

1-19

1-20

1-22

1-22

1-24

1-30

iii

1.10 Software support ........................................................................................ 1-31

1.10.1 Installing an operating system ......................................................

1.10.2 Support DVD information ..............................................................

1-31

1-31

BIOS information

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

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 EPU Power Saving Mode [Disabled] ..............................................

2.4.4 DRAM Timing Control .....................................................................

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

2.5.1 Trusted Computing ........................................................................

2.5.2 CPU Conguration ........................................................................

2.5.3 SATA Conguration .......................................................................

2.5.4 Alert Specication Format (ASF) Conguration ............................

2.5.5 Management Component Transport Protocol ..............................

2.5.6 USB Conguration ........................................................................

2.5.7 NB Conguration ...........................................................................

2.5.8 Onboard Devices Conguration ....................................................

2.5.9 APM ..............................................................................................

2.5.10 Serial Port Console Redirection ....................................................

2.5.11 Network Stack ...............................................................................

2.6 Boot menu ...................................................................................................

2.6.1 Fast Boot [Disabled] ......................................................................

2.6.2 Full Screen Logo [Enabled] ...........................................................

2-1

2-2

2-3

2-4

2-6

2-7

2-7

2-7

2-7

2-7

2-9

2-9

2-9

2-9

2-9

2-10

2-10

2-10

2-11

2-12

2-12

2-13

2-14

2-14

2-15

2-17

2-18

2-19

2-19

2-19

iv

2.6.3 Post Delay Time [3 sec] ................................................................2-20

2.6.4 Bootup NumLock State [On] .........................................................

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

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

2.6.7 Interrupt 19 Capture [Disabled] .....................................................

2.6.8 CSM (Compatibility Support Module) ............................................

2.6.9 Secure Boot ..................................................................................

2.6.10 Boot Option Priorities ....................................................................

2.6.11 Boot Override ................................................................................

2.7 Monitor menu ..............................................................................................

2.7.1 CPU Temperature / MB Temperature

2.7.2

2.7.3 CPU Q-Fan Control [Enabled] ......................................................

2.7.4 CHA_FAN 1/2 Q-Fan Control [Enabled] .......................................

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

2.7.6 Anti Surge Support [Enabled] .......................................................

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

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

2.8.2 ASUS SPD Information .................................................................

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

CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] ............2-23

[xxxºC/xxxºF]...................... 2-23

2-20

2-20

2-20

2-20

2-20

2-21

2-22

2-22

2-23

2-23

2-24

2-25

2-25

2-26

2-26

2-26

2-26

Appendices

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

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

v

Safety information

Electrical safety

To prevent electrical shock hazard, disconnect the power cable from the electrical outlet

•
before relocating the system.

When adding or removing devices to or from the system, ensure that the power cables

•
for the devices are unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before you add a device.

Before connecting or removing signal cables from the motherboard, ensure that all

•
power cables are unplugged.

Seek professional assistance before using an adapter or extension cord. These devices

•
could interrupt the grounding circuit.

Ensure that your power supply is set to the correct voltage in your area. If you are not

•
sure about the voltage of the electrical outlet you are using, contact your local power
company.

If the power supply is broken, do not try to x it by yourself. Contact a qualied service

•
technician or your retailer.

Operation safety

Before installing the motherboard and adding devices on it, carefully read all the manuals

•
that came with the package.

Before using the product, ensure all cables are correctly connected and the power

•
cables are not damaged. If you detect any damage, contact your dealer immediately.

To avoid short circuits, keep paper clips, screws, and staples away from connectors,

•
slots, sockets and circuitry.

Avoid dust, humidity, and temperature extremes. Do not place the product in any area

•
where it may become wet.

Place the product on a stable surface.

•

If you encounter technical problems with the product, contact a qualied service

•
technician or your retailer.

vi

About this guide

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

motherboard.

How this guide is organized

This guide contains the following parts:

• Chapter 1: Product introduction

This chapter describes the features of the motherboard and the new technology it
supports.

• Chapter 2: BIOS information

This chapter tells how to change system settings through the BIOS Setup menus.
Detailed descriptions of the BIOS parameters are also provided.

Where to nd more information

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

1. ASUS websites

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

2. Optional documentation

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

that may have been added by your dealer. These documents are not part of the
standard package.

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 trying to
complete a task.

CAUTION: Information to prevent damage to the components when trying to
complete a task

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

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

Typography

Bold text 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

F2A85-M2 specications summary

APU AMD® A- series accelerated processors with AMD® Radeon™ HD 7000

series graphics, up to 4 CPU cores, FM2 package

Supports AMD® Turbo Core Technology 3.0

Supports DirectX® 11

• The AMD® Turbo Core Technology 3.0 support depends on the APU types.

• Refer to

www.asus.com for AMD APU support list.

Chipset AMD® A85X FCH (Hudson D4)

Memory 4 x 240-pin DIMM slots support a maximum of 64GB unbuffered non-ECC

DDR3 1866 / 1600 / 1333 / 1066MHz memory modules

Dual-channel memory architecture

* The maximum 64GB memory capacity can be supported with 8GB 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

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

®

32-bit

Graphics Integrated AMD Radeon™ HD 7000 Series Graphics in Trinity APU

Multi-VGA output support: Display Port/DVI/D-Sub port

- Supports DisplayPort with max. resolution 4096x2160@30Hz

- Supports Dual-link DVI with max. resolution 2560x1600@60Hz

- Supports D-Sub with max. resolution 1920x1600@60Hz

- Supports Microsoft

- Maximum shared memory of 2G

- Supports AMD

* Refer to

www.amd.com for the discrete GPUs which support Dual

Graphics technology

®

DirectX 11

®

Dual Graphics technology

Expansion slots 1 x PCI Express 2.0 x16 slots

1 x PCI Express 2.0 x4 slots

1 x PCI Express 2.0 x1 slots

1 x PCI slots

Storage / RAID

AMD® A85X FCH:

- 6x Serial ATA 6Gb/s connectors(gray) with RAID 0, RAID 1,RAID
5,RAID 10 and JBOD support

LAN

Realtek® RTL8111DP Gigabit LAN controller

Audio Realtek® ALC887 8-Channel High Denition Audio CODEC

- Support 192khz/24bit BD lossless sound

- BD Audio Layer Content Protection

- Supports Jack-Detection, Multi-streaming, Front Panel Jack-Retasking

USB

AMD® A85X FCH :

- 4 x USB 3.0/2.0 ports (2 ports at back panel, [blue], 2 ports at mid­board)

- 8 x USB2.0/1.1 ports (4 ports at back panel, 4 ports at mid-board)

(continued on the next page)

ix

F2A85-M2 specications summary

ASUS unique features

ASUS EPU

- EPU

ASUS Exclusive Features

- ASUS USB 3.0 Boost

- ASUS AI Charger+

- ASUS AI Suite II

- 100% All High-quality Conductive Polymer Capacitors

ASUS Quiet Thermal Solution

- ASUS Fan Xpert Plus

ASUS EZ DIY

- ASUS CrashFree BIOS 3

- ASUS EZ Flash 2

- ASUS My Logo 2

Back Panel I/O ports

Internal I/O
connectors/buttons/
switches

1 x PS/2 keyboard port

1 x PS/2 mouse port

1 x DVI port

1 x D-Sub port

1 x Display port

1 x LAN (RJ-45) port

1 x COM port

4 x USB 2.0/1.1 ports

2 x USB 3.0/2.0 ports

3 x Audio jacks

1 x USB 3.0/2.0 connector supports additional 2 USB 3.0/2.0 ports (19­pin)

2 x USB 2.0/1.1 connectors support additional 4 USB 2.0/1.1 ports

6 x SATA 6.0Gb/s connectors (gray)

1 x Speaker connector

1 x Chassis intrusion connector

1 x CPU fan connector (4-pin)

2 x Chassis fan connector (4-pin)

1 x Front panel audio connector

1 x TPM IC onboard

1 x System panel connector

1 x 24-pin EATX power connector

1 x 4-pin ATX 12V power connector

(continued on the next page)

x

F2A85-M2 specications summary

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

Support DVD Drivers

Form factor

Specications are subject to change without notice.

BIOS 2.7, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS
CrashFree BIOS 3, and ASUS DRAM SPD (Serial Presence Detect)
memory information

ASUS utilities

ASUS Update

Anti-virus software (OEM version)

uATX form factor: 9.6 in x 9.6 in (24.4 cm x 24.4 cm)

xi

Package contents

User Manual

F2A85-M2

PCIEX16_1

PCI1

PCIEX1_1

PCIEX1_4

F_PANEL

SPDIF_OUT

AAFP

CHA_FAN2CPU_FAN

CHA_FAN1

Lithium Cell

CMOS Power

Super

I/O

AUDIO

ALC

887-VD2

RTL

8111DP

KBMS

64Mb

BIOS

SB_PWR

CLRTCCHASSIS

SPEAKER

AMD

®

A85X

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)

LAN_USB3_12

USB1_4

SATA6G_6

SATA6G_5

SATA6G_4

SATA6G_3

SATA6G_2

SATA6G_1

DRAM_LED

BOOT_DEVICE_LED

CPU_LED

VGA_LED

VGA

DP

DVI

COM

SOCKET FM2

EATXPWR

USB3_34

ATX12V

USB78 USB56

Check your motherboard package for the following items.

ASUS F2A85-M2 motherboard 2 x Serial ATA 6.0 Gb/s cables

1 x I/O Shield User Guide Support DVD

xii

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

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

vary with different models.

Product introduction

1

1.1 Special features

1.1.1 Product highlights

AMD® A-series accelerated processors with AMD® Radeon™ HD 7000 series
graphics

This motherboard supports AMD® A- series accelerated processor with AMD® Radeon™
HD 7000 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 Dual­channel DDR3 memory support and accelerates data transfer rate up to 5GT/s.

AMD® A85X FCH (Hudson D4) Chipset

AMD® A85X FCH (Hudson D4) is designed to support up to 5GT/s interface speed and AMD
CrossFireXTM. It supports 8 x SATA 6.0Gb/s ports and 4 x USB 3.0 ports.

Dual-Channel DDR3 1866/1600/1333/1066MHz support

The motherboard supports DDR3 memory that features data transfer rates of

1866/1600/1333/1066 MHz to boost the system’s performance, and to meet the higher

bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications.

8-channel high denition audio

The onboard 8-channel HD audio (High Denition Audio, previously codenamed Azalia)
CODEC enables high-quality 192KHz/24-bit audio output and jack-detect feature that
automatically detects and identies what types of peripherals are plugged into the audio
I/O jacks and noties users of inappropriate connection, which means there will be no more

confusion of Line-in, Line-out, and Mic jacks.

Native SATA 6.0 Gb/s support

With AMD® A85X FCH natively support for the next-generation Serial ATA (SATA) storage
interface, this motherboard delivers up to 6.0 Gb/s data transfer rates. It also provides
enhanced scalability, faster data retrieval, double the bandwidth of current bus systems.

Gigabit LAN solution

The onboard LAN controller is a highly integrated Gb LAN controller. It is enhanced with an

ACPI management function to provide efcient power management for advanced operating

systems.

ASUS F2A85-M2

1-1

100% All High-quality Conductive Polymer Capacitors

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

ASUS EPU

EPU (Energy Processing Unit), the world’s rst real-time system power-saving chip,

automatically detects the current system load and intelligently moderates power usage.

It offers a total system-wide energy optimization, reduces fan noise, and extends the

component’s lifespan.

1.1.2 Innovative ASUS features

USB 3.0 Boost

Accelerated USB 3.0 Data Transfer Rates with ASUS USB 3.0 Boost Technology

With USB 3.0 Boost technology, USB transfer speeds are signicantly increased up to

132%, enhancing an already impressive USB 3.0 transfer rate. ASUS software automatically
accelerates data speeds for compatible USB 3.0 peripherals without the need for any further

user conguration.

AI Suite II

With its user interface, ASUS AI Suite II integrates several ASUS utilities and allows you to

launch and operate these utilities simultaneously. It allows you to congure the overclocking

settings, adjust the frequencies and related voltages, remotely control the system via a
mobile device, and other easy-to-use helpful utilities.

Fan Xpert Plus

ASUS Fan Xpert Plus intelligently allows you to adjust both the CPU and chassis fan
speeds based on different ambient temperatures, resulting to a quiet and cool computing
environment.

ASUS MyLogo2™

This feature allows you to convert your favorite photo into a 256-color boot logo for a more
colorful and vivid image on your screen.

1-2

Chapter 1: Product introduction

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 USB ash disk that contains the latest BIOS le.

ASUS EZ Flash 2

ASUS EZ Flash 2 is a utility that allows you to update the BIOS without using an OS-based
utility.

C.P.R. (CPU Parameter Recall)

The BIOS C.P.R. feature automatically restores the CPU default settings when the system
hangs due to overclocking failure. C.P.R. eliminates the need to open the system chassis and
clear the RTC data. Simply shut down and reboot the system, and the BIOS automatically
restores the CPU parameters to their default settings.

ErP ready

The motherboard is European Union´s Energy-related Products (ErP) ready, and ErP

requires products to meet certain energy efciency requirements in regards to energy

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

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

product and thus mitigate environmental impacts.

ASUS F2A85-M2

1-3

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.

1-4

Chapter 1: Product introduction

F2A85-M2

1.3 Motherboard overview

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

Ensure that you unplug the power cord before installing or removing the motherboard.
Failure to do so can cause you physical injury and damage motherboard components.

1.3.1 Placement direction

When installing the motherboard, ensure that you place it into the chassis in the correct
orientation. The edge with external ports goes to the rear part of the chassis as indicated in
the image below.

1.3.2 Screw holes

Place eight screws into the holes indicated by circles to secure the motherboard to the
chassis.

Do not overtighten the screws! Doing so can damage the motherboard.

Place this side

towards the rear of

the chassis

ASUS F2A85-M2

1-5

1.3.3 Motherboard layout

F2A85-M2

PCIEX16_1

PCI1

PCIEX1_1

PCIEX1_4

F_PANEL

SPDIF_OUT

AAFP

CHA_FAN2CPU_FAN

CHA_FAN1

Lithium Cell

CMOS Power

Super

I/O

AUDIO

ALC

887-VD2

RTL

8111DP

KBMS

64Mb
BIOS

SB_PWR

CLRTCCHASSIS

SPEAKER

24.4cm(9.6in)

24.4cm(9.6in)

AMD

®

A85X

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)

LAN_USB3_12

USB1_4

SATA6G_6

SATA6G_5

SATA6G_4

SATA6G_3

SATA6G_2

SATA6G_1

DRAM_LED

VGA

DP

DVI

COM

SOCKET FM2

EATXPWR

USB3_34

ATX12V

USB78 USB56

1 2 42 3

7

6

1314 12 891011

5

1

BOOT_DEVICE_LED

CPU_LED

VGA_LED

1-6

Chapter 1: Product introduction

1.3.4 Layout contents

F2A85-M2

F2A85-M2 CPU socket FM2

Connectors/Jumpers/Slots/LED Page

1. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) 1-26

2. CPU, power fan and chassis fan connectors (4-pin CPU_FAN, 4-pin CHA_FAN1 and
4-pin CHA_FAN2)

3. AMD® FM2 Socket 1-7

4. DDR3 DIMM slots 1-11

5. Standby power LED (SB_PWR) 1-31

6. SATA 6.0Gb/s connectors (7-pin SATA6G_1~6) 1-29

7. Speaker connector (4-pin SPEAKER) 1-26

8. System panel connector (10-1 pin F_PANEL) 1-30

9. Clear RTC RAM (3-pin CLRTC) 1-22

10. Chassis intrusion connector (4-1 pin CHASSIS) 1-27

11. USB 3.0 connector (20-1 pin USB3_34) 1-28

12. USB 2.0 connectors (10-1 pin USB56, USB78) 1-28

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

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

1-27

1.4 Accelerated Processing Unit (APU)

This motherboard comes with an FM2 socket designed for AMD® A- series accelerated
processors with AMD® Radeon™ HD 7000 series graphics.

Ensure that you use a APU designed for the FM2 socket. The APU ts in only one correct

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

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1.4.1 Installing the APU

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2

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Chapter 1: Product introduction

1.4.2 APU heatsink and fan assembly installation

Apply the Thermal Interface Material
to the APU heatsink and APU before
you install the heatsink and fan if
necessary.

To install the APU heatsink and fan assembly

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2

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To uninstall the APU heatsink and fan assembly

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2

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Chapter 1: Product introduction

1.5 System memory

F2A85-M2

F2A85-M2 240-pin DDR3 DIMM sockets

DIMM_A1

DIMM_A2

DIMM_B1

DIMM_B2

1.5.1 Overview

The motherboard comes with four Double Data Rate 3 (DDR3) Dual Inline Memory Modules
(DIMM) sockets.

A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched
differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for
better performance with less power consumption.

The gure illustrates the location of the DDR3 DIMM sockets:

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, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM
sockets.

• Memory module with memory frequency higher than 2133 MHz and its corresponding
timing or the loaded XMP Prole is not the JEDEC memory standard. The stability and

compatibility of these memory modules depend on the CPU’s capabilities and other
installed devices.

• You may install varying memory sizes in Channel A and Channel B. The system maps
the total size of the lower-sized channel for the dual-channel conguration. Any excess
memory from the higher-sized channel is then mapped for single-channel operation.

• We recommend that you install the memory modules from 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.

• 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:

- Install a maximum of 3GB system memory if you are using a 32-bit Windows®

OS.

- Use a 64-bit Windows

®

OS if you want to install 4GB or more memory on the

motherboard.

• This motherboard does not support DIMMs made up of 512Mb (64MB) chips or less.

• 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.

®

OS, when you install 4GB

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