Gigabyte Ga A55M Ds2 Rev 2 0 Owner S Manual

2014-07-05

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GA-A55M-DS2

User's Manual

Rev. 2001

12ME-A55MDS2-2001R

Motherboard

GA-A55M-DS2

Feb. 1, 2012

Motherboard

GA-A55M-DS2

The trademarks mentioned in this manual are legally registered to their respective owners.

Disclaimer

Information in this manual is protected by copyright laws and is the property of GIGABYTE.

Changes to the specications and features in this manual may be made by GIGABYTE with-

out prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or

published in any form or by any means without GIGABYTE's prior written permission.

 In order to assist in the use of this product, carefully read the User's Manual.

 For product-related information, check on our website at: http://www.gigabyte.com

Identifying Your Motherboard Revision

The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"

means the revision of the motherboard is 1.0. Check your motherboard revision before updating

motherboard BIOS, drivers, or when looking for technical information.

Example:

- 4 -
Table of Contents
GA-A55M-DS2 Motherboard Layout ...............................................................................5
GA-A55M-DS2 Motherboard Block Diagram ..................................................................6
Chapter 1  Hardware Installation .....................................................................................7
1-1  Installation Precautions ................................................................................... 7
1-2  Product Specications ..................................................................................... 8
1-3  Installing the APU .......................................................................................... 10
1-4  Installing the Memory .....................................................................................11
1-5  Installing an Expansion Card ..........................................................................11
1-6  Setup of the AMD Dual Graphics Conguration ........................................... 12
1-7  Back Panel Connectors ................................................................................. 13
1-8  Internal Connectors ....................................................................................... 14
Chapter 2  BIOS Setup ..................................................................................................21
2-1  Startup Screen ............................................................................................... 21
2-2  The Main Menu .............................................................................................. 22
2-3  MB Intelligent Tweaker(M.I.T.) ....................................................................... 23
2-4  Standard CMOS Features ............................................................................. 28
2-5  Advanced BIOS Features .............................................................................. 29
2-6  Integrated Peripherals ................................................................................... 30
2-7  Power Management Setup ............................................................................ 32
2-8  PC Health Status ........................................................................................... 34
2-9  Load Fail-Safe Defaults ................................................................................. 35
2-10  Load Optimized Defaults ............................................................................... 35
2-11  Set Supervisor/User Password .....................................................................36
2-12  Save & Exit Setup .......................................................................................... 36
2-13  Exit Without Saving........................................................................................ 37
Chapter 3  Drivers Installation .......................................................................................37
Chapter 4  Appendix ......................................................................................................38
4-1  Conguring SATA Hard Drive(s) .................................................................... 38
4-2  Regulatory Statements .................................................................................. 40

- 5 -

GA-A55M-DS2 Motherboard Layout

Box Contents

GA-A55M-DS2 motherboard Motherboard driver disk

Two SATA cables User's Manual

I/O Shield

* The box contents above are for reference only and the actual items shall depend on the product package you obtain.

KB_MS CPU_FAN

ATX

GA-A55M-DS2

F_AUDIO

AUDIO

B_BIOS

DDR3_1

DDR3_2

BAT

F_PANEL

ATX_12V

DVI

CODEC

CLR_CMOS

M_BIOS

VGA

USB_LAN

PCIEX16

PCIEX1

PCI

F_USB1

F_USB2

COM

SYS_FAN

iTE

Super I/O

Socket FM1

R_USB

AMD A55

SPDIF_O

Realtek/Atheros

GbE LAN

SATA2 3 2

1 0

- 6 -

GA-A55M-DS2 Motherboard Block Diagram

UMI

APU CLK+/- (100 MHz)

DDR3 1866/1600/1333/1066 MHz

Dual Channel Memory

PCI Express Bus

PCIe CLK

(100 MHz)

1 PCI Express x16

COM Port

LPC

Bus

1 PCI

PCI Bus

PCI CLK

(33 MHz)

Dual BIOS

PS/2 KB/Mouse

D-Sub

LAN

RJ45

Realtek/Atheros

GbE LAN

x16

8 USB 2.0/1.1

DVI-D

4 SATA 3Gb/s

AMD APU

DISP CLK+/- (100 MHz)

Line Out (Front Speaker Out)

MIC (Center/Subwoofer Speaker Out)

Line In (Rear Speaker Out)

CODEC

S/PDIF Out

AMD A55

1 PCI Express x1

iTE

Super I/O

- 7 -

1-1 Installation Precautions

The motherboard contains numerous delicate electronic circuits and components which can

become damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read

the user's manual and follow these procedures:

Prior to installation, make sure the chassis is suitable for the motherboard. •

Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or •

warranty sticker provided by your dealer. These stickers are required for warranty validation.

Always remove the AC power by unplugging the power cord from the power outlet before •

installing or removing the motherboard or other hardware components.

When connecting hardware components to the internal connectors on the motherboard, •

make sure they are connected tightly and securely.

When handling the motherboard, avoid touching any metal leads or connectors. •

It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic com- •

ponents such as a motherboard, APU or memory. If you do not have an ESD wrist strap,

keep your hands dry and rst touch a metal object to eliminate static electricity.

Prior to installing the motherboard, please have it on top of an antistatic pad or within an •

electrostatic shielding container.

Before unplugging the power supply cable from the motherboard, make sure the power sup- •

ply has been turned off.

Before turning on the power, make sure the power supply voltage has been set according to •

the local voltage standard.

Before using the product, please verify that all cables and power connectors of your hard- •

ware components are connected.

To prevent damage to the motherboard, do not allow screws to come in contact with the •

motherboard circuit or its components.

Make sure there are no leftover screws or metal components placed on the motherboard or •

within the computer casing.

Do not place the computer system on an uneven surface •

Do not place the computer system in a high-temperature environment. •

Turning on the computer power during the installation process can lead to damage to sys- •

tem components as well as physical harm to the user.

If you are uncertain about any installation steps or have a problem related to the use of the •

product, please consult a certied computer technician.

Chapter 1 Hardware Installation

- 8 -

1-2 ProductSpecications

APU FM1 Socket: 

- AMD A series processors/AMD E2 series processors

- AMD Athlon™ II series processors/AMD Sempron™ series processors

(Go to GIGABYTE's website for the latest APU support list.)

Chipset AMD A55 

Memory 2 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory 

* Due to Windows 32-bit operating system limitation, when more than 4 GB of physical

memory is installed, the actual memory size displayed will be less than 4 GB.

Dual channel memory architecture 

Support for DDR3 1866/1600/1333/1066 MHz memory modules 

(Go to GIGABYTE's website for the latest supported memory speeds and memory

modules.)

Onboard

Graphics

APU: 

* To use the onboard graphics, you must install an AMD APU with integrated graphics.

- 1 x D-Sub port

- 1 x DVI-D port, supporting a maximum resolution of 1920x1200

* The DVI-D port does not support D-Sub connection by adapter.

(All integrated graphics ports do not support Hot plug. If you want to change to

another graphics port when the computer is on, be sure to turn off the computer

rst.)

Audio Realtek/VIA HD audio codec 

High Denition Audio 

2/4/5.1/7.1-channel 

* To congure 7.1-channel audio, you have to use an HD front panel audio module

and enable the multi-channel audio feature through the audio driver.

Support for S/PDIF Out 

LAN Realtek/Atheros GbE LAN chip  (10/100/1000 Mbit)

Expansion Slots 1 x PCI Express x16 slot, running at x16 

1 x PCI Express x1 slot 

(All PCI Express slots conform to the PCI Express 2.0 standard.)

1 x PCI slot 

Multi-Graphics

Technology

Support for AMD Dual Graphics technology 

* Only A series APUs support AMD Dual Graphics.

Storage Interface Chipset: 

- 4 x SATA 3Gb/s connectors supporting up to 4 SATA 3Gb/s devices

- Support for RAID 0, RAID 1, RAID 10, and JBOD

USB Chipset: 

- Up to 8 USB 2.0/1.1 ports (4 ports on the back panel, 4 ports available

through the internal USB headers)

Internal

Connectors

1 x 24-pin ATX main power connector 

1 x 4-pin ATX 12V power connector 

4 x SATA 3Gb/s connectors 

- 9 -

Internal

Connectors

1 x APU fan header 

1 x system fan header 

1 x front panel header 

1 x front panel audio header 

1 x S/PDIF Out header 

2 x USB 2.0/1.1 headers 

1 x serial port header 

1 x Clear CMOS jumper 

Back Panel

Connectors

1 x PS/2 keyboard port 

1 x PS/2 mouse port 

1 x D-Sub port 

1 x DVI-D port 

4 x USB 2.0/1.1 ports 

1 x RJ-45 port 

3 x audio jacks (Line In/Line Out/Microphone) 

I/O Controller iTE I/O Controller Chip 

Hardware

Monitor

System voltage detection 

APU/System temperature detection 

APU/System fan speed detection 

APU overheating warning 

APU/System fan fail warning 

APU/System fan speed control 

* Whether the APU/system fan speed control function is supported will depend on the

APU/system cooler you install.

BIOS 2 x 32 Mbit ash 

Use of licensed AWARD BIOS 

Support for DualBIOS ™

PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b 

Unique Features Support for @BIOS 

Support for Q-Flash 

Support for Xpress BIOS Rescue 

Support for Download Center 

Support for Xpress Install 

Support for Xpress Recovery2 

Support for EasyTune 

* Available functions in EasyTune may differ by motherboard model.

Support for Smart Recovery 

Support for Auto Green 

Support for ON/OFF Charge 

Support for 3TB+ Unlock 

Support for Q-Share 

- 10 -

Bundled

Software Norton Internet Security (OEM version) 

Operating

System Support for Microsoft ® Windows 7/Vista/XP

Form Factor Micro ATX Form Factor; 22.5cm x 17.4cm 

* GIGABYTE reserves the right to make any changes to the product specications and product-related information

without prior notice.

1-3 Installing the APU

Installing the APU

Locate the pin one (denoted by a small triangle) of the APU socket and the APU.

Read the following guidelines before you begin to install the APU:

• Make sure that the motherboard supports the APU.

(Go to GIGABYTE's website for the latest APU support list.)

• Always turn off the computer and unplug the power cord from the power outlet before installing

the APU to prevent hardware damage.

• Locate the pin one of the APU. The APU cannot be inserted if oriented incorrectly.

• Apply an even and thin layer of thermal grease on the surface of the APU.

• Do not turn on the computer if the APU cooler is not installed, otherwise overheating and dam-

age of the APU may occur.

• Set the APU host frequency in accordance with the APU specications. It is not recommended

that the system bus frequency be set beyond hardware specications since it does not meet the

standard requirements for the peripherals. If you wish to set the frequency beyond the standard

specications, please do so according to your hardware specications including the APU, graph-

ics card, memory, hard drive, etc.

APU

A Small Triangle Marking

Denotes APU Pin One

FM1 Socket

A Small Triangle Mark

Denotes Pin One of the

Socket

- 11 -

1-4 Installing the Memory

Due to APU limitations, read the following guidelines before installing the memory in Dual Channel mode.

Dual Channel mode cannot be enabled if only one DDR3 memory module is installed.1.

When enabling Dual Channel mode with two memory modules, it is recommended that memory of 2.

the same capacity, brand, speed, and chips be used for optimum performance.

DualChannelMemoryConguration

This motherboard provides two DDR3 memory sockets and supports Dual Channel Technology. After the

memory is installed, the BIOS will automatically detect the specications and capacity of the memory. En-

abling Dual Channel memory mode will double the original memory bandwidth.

The two DDR3 memory sockets are divided into two channels and each channel has one memory socket as

following:

Channel 0: DDR3_2

Channel 1: DDR3_1

Read the following guidelines before you begin to install the memory:

Make sure that the motherboard supports the memory. It is recommended that memory of the •

same capacity, brand, speed, and chips be used.

(Go to GIGABYTE's website for the latest supported memory speeds and memory modules.)

Always turn off the computer and unplug the power cord from the power outlet before installing •

the memory to prevent hardware damage.

Memory modules have a foolproof design. A memory module can be installed in only one direc- •

tion. If you are unable to insert the memory, switch the direction.

1-5 Installing an Expansion Card

Read the following guidelines before you begin to install an expansion card:

Make sure the motherboard supports the expansion card. Carefully read the manual that came •

with your expansion card.

Always turn off the computer and unplug the power cord from the power outlet before installing •

an expansion card to prevent hardware damage.

DDR3_2

DDR3_1

- 12 -

1-6 SetupoftheAMDDualGraphicsConguration

(Note) Make sure the drivers for the Chipset, onboard graphics, and external graphics card are properly

installed.

Combining the onboard GPU with a discrete graphics card, AMD's Dual Graphics technology can provide

signicantly advanced display performance for AMD platform. Read the following instructions on conguring a

Dual Graphics system.

A. System Requirements

- AMD A series processor

- Windows 7 operating system

- An AMD Dual Graphics technology-supported motherboard and correct driver

- An AMD

Radeon HD 6000 series graphics card that supports AMD

Dual Graphics technology (for more

details, please visit AMD's ofcial website

)

and correct driver

B.InstallingtheGraphicsCardsandConguringBIOSSetup

Step 1:

Observe the steps in "1-5 Installing an Expansion Card" and install an AMD Dual Graphics technology-

supported graphics card on the PCIEX16 slot. Plug the monitor cable into the graphics card and start up your

computer.

Step 2:

Enter BIOS Setup to set the following items under the AdvancedBIOSFeatures menu:

- Set UMAFrameBufferSize to 512MB or 1024MB.

- Set InitDisplayFirst to Onboard.

Save the settings and exit BIOS Setup. Power off your computer.

Step 3:

Remove the monitor cable from the graphics card and plug it into the integrated graphics port on the back

panel and restart your computer.

C.ConguringtheGraphicsDriver

After installing the graphics card driver in the operating system, go to

the AMDVISIONEngineControlCenter. Browse to Performance\

AMDCrossFire™ and ensure the EnableCrossFire™ check box is

selected.

- 13 -

1-7 Back Panel Connectors

PS/2 Keyboard and PS/2 Mouse Port

Use the upper port (green) to connect a PS/2 mouse and the lower port (purple) to connect a PS/2 keyboard.

D-Sub Port (Note1)

The D-Sub port supports a 15-pin D-Sub connector. Connect a monitor that supports D-Sub connection

to this port.

DVI-D Port(Note1)(Note2)

The DVI-D port conforms to the DVI-D specication and supports a maximum resolution of 1920x1200

(the actual resolutions supported depend on the monitor being used). Connect a monitor that supports

DVI-D connection to this port.

USB 2.0/1.1 Port

The USB port supports the USB 2.0/1.1 specication. Use this port for USB devices such as a USB key-

board/mouse, USB printer, USB ash drive and etc.

RJ-45LANPort

The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following

describes the states of the LAN port LEDs.

(Note 1) All integrated graphics ports do not support Hot plug. If you want to change to another graphics port

when the computer is on, be sure to turn off the computer rst.

(Note 2) The DVI-D port does not support D-Sub connection by adapter.

Activity LED:

State Description

Blinking Data transmission or receiving is occurring

Off No data transmission or receiving is occurring

Connection/Speed LED:

State Description

Orange 1 Gbps data rate

Green 100 Mbps data rate

Off 10 Mbps data rate

Activity LED

Connection/

Speed LED

LAN Port

LineInJack(Blue)

The default line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.

LineOutJack(Green)

The default line out jack. Use this audio jack for a headphone or 2-channel speaker. This jack can be

used to connect front speakers in a 4/5.1/7.1-channel audio conguration.

MicInJack(Pink)

The default Mic in jack. Microphones must be connected to this jack.

To congure 7.1-channel audio, you have to use an HD front panel audio module and enable the

multi-channel audio feature through the audio driver.

When removing the cable connected to a back panel connector, rst remove the cable from your •

device and then remove it from the motherboard.

When removing the cable, pull it straight out from the connector. Do not rock it side to side to •

prevent an electrical short inside the cable connector.

- 14 -

1-8 Internal Connectors

Read the following guidelines before connecting external devices:

First make sure your devices are compliant with the connectors you wish to connect. •

Before installing the devices, be sure to turn off the devices and your computer. Unplug the •

power cord from the power outlet to prevent damage to the devices.

After installing the device and before turning on the computer, make sure the device cable has •

been securely attached to the connector on the motherboard.

1) ATX_12V

2) ATX

3) CPU_FAN

4) SYS_FAN

5) SATA2 0/1/2/3

6) F_PANEL

7) F_AUDIO

8) SPDIF_O

9) F_USB1/F_USB2

10) COM

11) CLR_CMOS

12) BAT

- 15 -

DEBUG

PORT

G.QBOFM

131

2412

ATX

ATX:

1/2)ATX_12V/ATX(2x212VPowerConnectorand2x12MainPowerConnector)

With the use of the power connector, the power supply can supply enough stable power to all the com-

ponents on the motherboard. Before connecting the power connector, rst make sure the power supply

is turned off and all devices are properly installed. The power connector possesses a foolproof design.

Connect the power supply cable to the power connector in the correct orientation. The 12V power con-

nector mainly supplies power to the APU. If the 12V power connector is not connected, the computer will

not start.

To meet expansion requirements, it is recommended that a power supply that can withstand high

power consumption be used (500W or greater). If a power supply is used that does not provide

the required power, the result can lead to an unstable or unbootable system.

ATX_12V:

Pin No. Denition

1 GND

2 GND

3 +12V

4 +12V

Pin No. Denition Pin No. Denition

1 3.3V 13 3.3V

2 3.3V 14 -12V

3 GND 15 GND

4 +5V 16 PS_ON (soft On/Off)

5 GND 17 GND

6 +5V 18 GND

7 GND 19 GND

8 Power Good 20 -5V

9 5VSB (stand by +5V) 21 +5V

10 +12V 22 +5V

11 +12V (Only for 2x12-pin ATX) 23 +5V (Only for 2x12-pin ATX)

12 3.3V (Only for 2x12-pin ATX) 24 GND (Only for 2x12-pin ATX)

ATX_12V

- 16 -

3/4)CPU_FAN/SYS_FAN(FanHeaders)

The motherboard has a 4-pin CPU fan header (CPU_FAN) and a 4-pin system fan header (SYS_FAN).

Most fan headers possess a foolproof insertion design. When connecting a fan cable, be sure to connect

it in the correct orientation (the black connector wire is the ground wire). The motherboard supports APU

fan speed control, which requires the use of a APU fan with fan speed control design. For optimum heat

dissipation, it is recommended that a system fan be installed inside the chassis.

Be sure to connect fan cables to the fan headers to prevent your APU and system from overheating. Over- •

heating may result in damage to the APU or the system may hang.

These fan headers are not conguration jumper blocks. Do not place a jumper cap on the headers. •

Pin No. Denition

1 GND

2 +12V

3 Sense

4 Speed Control

5) SATA20/1/2/3(SATA3Gb/sConnectors)

The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard.

Each SATA connector supports a single SATA device. The AMD A55 Chipset supports RAID 0, RAID 1,

RAID 10, and JBOD. Refer to Chapter 4, "Conguring SATA Hard Drive(s)," for instructions on congur-

ing a RAID array.

Please connect the L-shaped end of

the SATA cable to your SATA hard

drive.

Pin No. Denition

1 GND

2 TXP

3 TXN

4 GND

5 RXN

6 RXP

7 GND

• A RAID 0 or RAID 1 conguration requires at least two hard drives. If more than two hard

drives are to be used, the total number of hard drives must be an even number.

• A RAID 10 conguration requires four hard drives.

CPU_FAN

SYS_FAN

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

DEBUG

PORT

G.QBOFM

3 2

1 0

SATA2

- 17 -

6) F_PANEL(FrontPanelHeader)

Connect the power switch, reset switch, speaker, and system status indicator on the chassis to this

header according to the pin assignments below. Note the positive and negative pins before connecting

the cables.

The front panel design may differ by chassis. A front panel module mainly consists of power

switch, reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your

chassis front panel module to this header, make sure the wire assignments and the pin assign-

ments are matched correctly.

• PW (Power Switch):

Connects to the power switch on the chassis front panel. You may congure the way to turn off your

system using the power switch (refer to Chapter 2, "BIOS Setup," "Power Management Setup," for

more information).

• SPEAK (Speaker):

Connects to the speaker on the chassis front panel. The system reports system startup status by is-

suing a beep code. One single short beep will be heard if no problem is detected at system startup. If

a problem is detected, the BIOS may issue beeps in different patterns to indicate the problem.

• HD (Hard Drive Activity LED)

Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive

is reading or writing data.

• RES (Reset Switch):

Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer

if the computer freezes and fails to perform a normal restart.

• CI (Chassis Intrusion Header):

Connects to the chassis intrusion switch/sensor on the chassis that can detect if the chassis cover

has been removed. This function requires a chassis with a chassis intrusion switch/sensor.

• MSG/PWR (Message/Power/Sleep LED):

Connects to the power status indicator on the chassis front panel. The LED

is on when the system is operating. The LED is off when the system is in

S3/S4 sleep state or powered off (S5).

System Status LED

S0 On

S3/S4/S5 Off

MSG-

PW-

SPEAK+

SPEAK-

MSG+

PW+

Message/Power/

Sleep LED

HD-

RES+

HD+

RES-

Hard Drive

Activity LED

Reset

Switch

Speaker

F_USB30 F_AUDIO(H)

DB_PORT

F_PANEL(NH) F_PANEL

(H61M-D2)

ACPI_CPT

(GA-IVB)

BIOS_PH

(GA-IVB)

SMB_CPT

(GA-IVB)

CLR_CMOS

DIS_ME

GP15_CPT

(GA-IVB)

XDP_CPU

XDP_PCH

(GA-IVB)

TPM

w/housing

Voltage measurement module(X58A-OC)

PCIe power connector (SATA)(X58A-OC)

DIP

1 2 3

DIP

1 2 3

DIP

1 2 3

DIP

123

BIOS Switcher (X58A-OC)

PWM Switch (X58A-OC)

M_SATA

Power

Switch

Power LED

CI-

CI+

PWR-

PWR+

Chassis Intrusion

Header

- 18 -

7) F_AUDIO(FrontPanelAudioHeader)

The front panel audio header supports Intel High Denition audio (HD) and AC'97 audio. You may connect

your chassis front panel audio module to this header. Make sure the wire assignments of the module con-

nector match the pin assignments of the motherboard header. Incorrect connection between the module

connector and the motherboard header will make the device unable to work or even damage it.

The front panel audio header supports HD audio by default. •

Audio signals will be present on both of the front and back panel audio connections simultane- •

ously.

Some chassis provide a front panel audio module that has separated connectors on each wire •

instead of a single plug. For information about connecting the front panel audio module that

has different wire assignments, please contact the chassis manufacturer.

For HD Front Panel Audio: For AC'97 Front Panel Audio:

Pin No. Denition

1 MIC2_L

2 GND

3 MIC2_R

4 -ACZ_DET

5 LINE2_R

6 GND

7 FAUDIO_JD

8 No Pin

9 LINE2_L

10 GND

Pin No. Denition

1 MIC

2 GND

3 MIC Power

4 NC

5 Line Out (R)

6 NC

7 NC

8 No Pin

9 Line Out (L)

10 NC

8) SPDIF_O(S/PDIFOutHeader)

This header supports digital S/PDIF Out and connects a S/PDIF digital audio cable (provided by expan-

sion cards) for digital audio output from your motherboard to certain expansion cards like graphics cards

and sound cards. For example, some graphics cards may require you to use a S/PDIF digital audio cable

for digital audio output from your motherboard to your graphics card if you wish to connect an HDMI

display to the graphics card and have digital audio output from the HDMI display at the same time. For

information about connecting the S/PDIF digital audio cable, carefully read the manual for your expan-

sion card.

Pin No. Denition

1 SPDIFO

2 GND

- 19 -

Pin No. Denition

1 NDCD-

2 NSIN

3 NSOUT

4 NDTR-

5 GND

6 NDSR-

7 NRTS-

8 NCTS-

9 NRI-

10 No Pin

10) COM(SerialPortHeader)

The COM header can provide one serial port via an optional COM port cable. For purchasing the op-

tional COM port cable, please contact the local dealer.

9) F_USB1/F_USB2(USB2.0/1.1Headers)

The headers conform to USB 2.0/1.1 specication. Each USB header can provide two USB ports via an

optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.

Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header. •

Prior to installing the USB bracket, be sure to turn off your computer and unplug the power •

cord from the power outlet to prevent damage to the USB bracket.

Pin No. Denition

1 Power (5V)

2 Power (5V)

3 USB DX-

4 USB DY-

5 USB DX+

6 USB DY+

7 GND

8 GND

9 No Pin

10 NC

- 20 -

11) CLR_CMOS(ClearCMOSJumper)

Use this jumper to clear the CMOS values (e.g. date information and BIOS congurations) and reset the

CMOS values to factory defaults. To clear the CMOS values, use a metal object like a screwdriver to

touch the two pins for a few seconds.

Always turn off your computer and unplug the power cord from the power outlet before clear- •

ing the CMOS values.

After system restart, go to BIOS Setup to load factory defaults (select Load Optimized De- •

faults) or manually congure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS

congurations).

Open: Normal

Short: Clear CMOS Values

12) BAT(Battery)

The battery provides power to keep the values (such as BIOS congurations, date, and time information)

in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a

low level, or the CMOS values may not be accurate or may be lost.

You may clear the CMOS values by removing the battery:

Turn off your computer and unplug the power cord.1.

Gently remove the battery from the battery holder and wait for one minute. 2.

(Or use a metal object like a screwdriver to touch the positive and negative

terminals of the battery holder, making them short for 5 seconds.)

Replace the battery. 3.

Plug in the power cord and restart your computer.4.

Always turn off your computer and unplug the power cord before replacing the battery. •

Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with •

an incorrect model.

Contact the place of purchase or local dealer if you are not able to replace the battery by your- •

self or uncertain about the battery model.

When installing the battery, note the orientation of the positive side (+) and the negative side (-) •

of the battery (the positive side should face up).

Used batteries must be handled in accordance with local environmental regulations. •

- 21 -

To access the BIOS Setup program, press the <Delete> key during the POST when the power is turned on.

To see more advanced BIOS Setup menu options, you can press <Ctrl> + <F1> in the main menu of the

BIOS Setup program.

To upgrade the BIOS, use either the GIGABYTE Q-Flash or @BIOS utility.

Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the operating •

system.

@BIOS is a Windows-based utility that searches and downloads the latest version of BIOS from the •

Internet and updates the BIOS.

Chapter2 BIOSSetup

Because BIOS ashing is potentially risky, if you do not encounter problems using the current •

version of BIOS, it is recommended that you not ash the BIOS. To ash the BIOS, do it with

caution. Inadequate BIOS ashing may result in system malfunction.

It is recommended that you not alter the default settings (unless you need to) to prevent system •

instability or other unexpected results. Inadequately altering the settings may result in system's

failure to boot. If this occurs, try to clear the CMOS values and reset the board to default values.

(Refer to the "Load Optimized Defaults" section in this chapter or introductions of the battery/

clear CMOS jumper in Chapter 1 for how to clear the CMOS values.)

2-1 Startup Screen

The following screens may appear when the computer boots.

A.TheLOGOScreen(Default):

B.ThePOSTScreen

Motherboard Model

BIOS Version

Award Modular BIOS v6.00PG

GA-A55M-DS2 D5

<DEL>: BIOS Setup <F9>: XpressRecovery2 <F12>: Boot Menu <End>: Qflash

02/07/2012-Llano-Hudson-7A66HG0KC-00

Function Keys

- 22 -

If you do not nd the settings you want in the Main Menu or a submenu, press <Ctrl>+<F1> to •

access more advanced options.

When the system is not stable as usual, select the •LoadOptimizedDefaults item to set your

system to its defaults.

The BIOS Setup menus described in this chapter are for reference only and may differ by BIOS •

version.

TheFunctionsofthe<F11>and<F12>keys(FortheMainMenuOnly)



F11:SaveCMOStoBIOS

This function allows you to save the current BIOS settings to a prole. You can create up to 8 proles

(Prole 1-8) and name each prole. First enter the prole name (to erase the default prole name, use

the SPACE key) and then press <Enter> to complete.

F12:LoadCMOSfromBIOS

If your system becomes unstable and you have loaded the BIOS default settings, you can use this

function to load the BIOS settings from a prole created before, without the hassles of reconguring the

BIOS settings. First select the prole you wish to load, then press <Enter> to complete.

2-2 The Main Menu

Once you enter the BIOS Setup program, the Main Menu (as shown below) appears on the screen. Use ar-

row keys to move among the items and press <Enter> to accept or enter a sub-menu.

(SampleBIOSVersion:D5)

Change CPU's Clock & Voltage

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

- 23 -

2-3 MBIntelligentTweaker(M.I.T.)

Whether the system will work stably with the overclock/overvoltage settings you made is depen-•

dent on your overall system congurations. Incorrectly doing overclock/overvoltage may result in

damage to CPU, chipset, or memory and reduce the useful life of these components. This page is

for advanced users only and we recommend you not to alter the default settings to prevent system

instability or other unexpected results. (Inadequately altering the settings may result in system's

failure to boot. If this occurs, clear the CMOS values and reset the board to default values.)

When the • SystemVoltageOptimized item blinks in red, it is recommended that you set the

System Voltage Control item to Auto to optimize the system voltage settings.

(Note) This item is present only when you install a CPU that supports this feature.

IGXConguration

Internal Graphics Mode

Allows you to determine whether to allocate system memory for the onboard graphics controller.

Disabled Disables the onboard graphics controller.



UMA Allocates memory for the onboard graphics controller from the system memory. (Default)



UMAFrameBufferSize

Frame buffer size is the total amount of system memory allocated solely for the onboard graphics con-

troller. MS-DOS, for example, will use only this memory for display. Options are: Auto (default), 256MB,

512MB, 1024MB.

MB Intelligent Tweaker(M.I.T.)

` IGXConguration   [PressEnter]

 CPUClockRatio   [Auto] 2130Mhz

CPU NB Clock Divisor (Note)   [Auto] 654Mhz

Core Performance Boost (Note)  [Enabled]

CPB Ratio (Note)   [Auto] 2130Mhz

 CPUHostClockControl  [Auto]

x CPU Frequency(MHz) 100

DRAME.O.C.P    [Disabled

 SetMemoryClock   [Auto]

x Memory Clock x5.33 1066Mhz

` DRAMConguration   [PressEnter]

******** System Voltage Optimized ********

 SystemVoltageControl  [Auto]

x DDR3 Voltage Control Auto

x CPU Voltage Control Auto

x CPU NB VID Control Auto

Normal CPU Vcore 1.2750V

Normal CPU Vcore NB 1.2000V

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

IGXConguration

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level ``

 InternalGraphicsMode  [UMA]

 UMAFrameBufferSize  [Auto]

x Surround View Disabled

 VGACoreClockcontrol  [Auto]

x VGA Core Clock(MHz) 600

- 24 -

(Note) This item is present only when you install a CPU that supports this feature.

Surround View

Enables or disables the Surround View function. This option is congurable only when InitDisplayFirst

under AdvancedBIOSFeatures is set to PEG and an ATI graphics card is installed. (Default: Disabled)

VGA Core Clock control

Allows you to determine whether to manually set the VGA Core clock. (Default: Auto)

VGACoreClock(MHz)

Allows you to manually set the VGA Core clock. The adjustable range is from 300 MHz to 2000 MHz.

This item is congurable only if the VGA Core Clock control option is set to Manual.

CPU Clock Ratio

Allows you to alter the clock ratio for the installed CPU. The adjustable range is dependent on the CPU

being installed.

CPUNBClockDivisor

&(Note)

Allows you to set the CPU North Bridge frequency divisor.

Core Performance Boost

&(Note)

Allows you to determine whether to enable the Core Performance Boost (CPB) technology, a CPU

performance-boost technology. (Default: Enabled)

CPB Ratio

&(Note)

Allows you alter the ratio for the CPB. The adjustable range is dependent on the CPU being installed.

(Default: Auto)

CPU Host Clock Control

Enables or disables the control of CPU host clock. Auto (default) allows the BIOS to automatically adjust

the CPU host frequency. Manual allows the CPUFrequency(MHz) item below to be congurable.

Note: If your system fails to boot after overclocking, please wait for 20 seconds to allow for automated

system reboot, or clear the CMOS values to reset the board to default values.

CPUFrequency(MHz)

Allows you to manually set the CPU host frequency. The adjustable range is from 200 MHz to 500 MHz.

This option is congurable only when CPU Host Clock Control is set to Manual.Important It is highly

recommended that the CPU frequency be set in accordance with the CPU specications.

DRAME.O.C.P

Allows you to determine whether to use the preset memory overclocking prole to achieve optimum

overclocking performance. (Default: Disabled)

Set Memory Clock

Determines whether to manually set the memory clock. Auto lets BIOS automatically set the memory

clock as required. Manual allows the memory clock control item below to be congurable. (Default: Auto)

Memory Clock

This option is congurable only when Set Memory Clock is set to Manual.

X5.33 Sets Memory Clock to X5.33.



X6.66 Sets Memory Clock to X6.66.



X8.00 Sets Memory Clock to X8.00.



X9.33 Sets Memory Clock to X9.33.



- 25 -

DRAMConguration

DDR3 Timing Items

Manual allows all DDR3 Timing items below to be congurable.

Options are: Auto (default), Manual.

1T/2T Command Timing

Options are: Auto (default), 1T, 2T.

CAS# latency

Options are: Auto (default), 5T~14T.

RAS to CAS R/W Delay

Options are: Auto (default), 5T~14T.

Row Precharge Time

Options are: Auto (default), 5T~14T.

Minimum RAS Active Time

Options are: Auto (default), 15T~36T.

TwTr Command Delay

Options are: Auto (default), 4T~8T.

DRAMConguration

 DDR3TimingItems  [Auto] SPD Auto

x 1T/2T Command Timing Auto -- --

x CAS# latency Auto 9T 9T

x RAS to CAS R/W Delay Auto 9T 9T

x Row Precharge Time Auto 9T 9T

x Minimum RAS Active Time Auto 24T 24T

x TwTr Command Delay Auto 5T 5T

x Trfc0 for DIMM2 Auto 110ns 110ns

x Trfc1 for DIMM1 Auto -- --

x Write Recovery Time Auto 10T 6T

x Precharge Time Auto 5T 4T

x Row Cycle Time Auto 33T 20T

x RAS to RAS Delay Auto 4T 4T

x Four Bank Activate Windows Auto -- --

**DCTs Drive Strength** DCT0 DCT1

 Proc0dt(ohms) [Auto] 60 [Auto] 240

 DQSDriveStrength [Auto] 1.0x [Auto] 1.5x

 DataDriveStrength [Auto] 1.0x [Auto] 1.5x

 MEMCLKDriveStrength [Auto] 1.25x [Auto] 1.5x

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

DRAMConguration

 Addr/CmdDriveStrength [Auto] 1.5x [Auto] 2.0x

 CS/ODTDriveStrength [Auto] 1.5x [Auto] 2.0x

 CKEDriveStrength [Auto] 1.5x [Auto] 2.0x

**DCTs Addr/Cmd Timing** DCT0 DCT1

 Addr/CmdSetupTime [Auto] 1T [Auto] 1/2T

 Addr/CmdFineDelay [Auto] 22/64 [Auto] 0/64

 CS/ODTSetupTime [Auto] 1/2T [Auto] 1/2T

 CS/ODTFineDelay [Auto] 0/64 [Auto] 0/64

 CKESetupTime [Auto] 1/2T [Auto] 1/2T

 CKEFineDelay [Auto] 0/64 [Auto] 0/64

 BankInterleaving  [Enabled]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

- 26 -

Trfc0 for DIMM2

Options are: Auto (default), 90ns, 110ns, 160ns, 300ns, 350ns.

Trfc1 for DIMM1

Options are: Auto (default), 90ns, 110ns, 160ns, 300ns, 350ns.

Write Recovery Time

Options are: Auto (default), 5T~8T, 10T, 12T, 14T, 16T.

Precharge Time

Options are: Auto (default), 4T~8T.

Row Cycle Time

Options are: Auto (default), 20T~54T.

RAS to RAS Delay

Options are: Auto (default), 4T~8T.

FourBankActivateWindow

Options are: Auto (default), 16T~40T.

**DCTs Drive Strength**

ProcOdt(ohms)

Options are: Auto (default), 240 ohms, 120 ohms, 80 ohms, 60 ohms.

DQS Drive Strength

Options are: Auto (default), 0.75x, 1.0x, 1.25x, 1.5x.

Data Drive Strength

Options are: Auto (default), 0.75x, 1.0x, 1.25x, 1.5x.

MEMCLK Drive Strength

Options are: Auto (default), 0.75x, 1.0x, 1.25x, 1.5x.

Addr/Cmd Drive Strength

Options are: Auto (default), 1.0x, 1.25x, 1.5x, 2.0x.

CS/ODTDriveStrength

Options are: Auto (default), 1.0x, 1.25x, 1.5x, 2.0x.

CKE Drive Strength

Options are: Auto (default), 1.0x, 1.25x, 1.5x, 2.0x.

**DCTs Addr/Cmd Timing**

Addr/Cmd Setup Time

Options are: Auto (default), 1/2T, 2T.

Addr/CmdFineDelay

Options are: Auto (default), 0/64~31/64.

CS/ODTSetupTime

Options are: Auto (default), 1/2T, 2T.

CS/ODTFineDelay

Options are: Auto (default), 0/64~31/64.

CKE Setup Time

Options are: Auto (default), 1/2T, 2T.

CKEFineDelay

Options are: Auto (default), 0/64~31/64.

- 27 -

Bank Interleaving

Enables or disables memory bank interleaving. Enabled allows the system to simultaneously access dif-

ferent banks of the memory to increase memory performance and stability. (Default: Enabled)

********SystemVoltageOptimized********

System Voltage Control

Determines whether to manually set the system voltages. Auto lets the BIOS automatically set the

system voltages as required. Manual allows all voltage control items below to be congurable. (Default:

Auto)

DDR3 Voltage Control

Allows you to set memory voltage.

Normal Supplies the memory voltage as required. (Default)



1.100V ~ 1.900V The adjustable range is from 1.100V to 1.900V.



Note: Increasing memory voltage may result in damage to the memory or reduce the useful life of the

memory.

CPU Voltage Control

Allows you to set the CPU voltage. Auto sets the CPU voltage as required. The adjustable range is de-

pendent on the CPU being installed. (Default: Normal)

Note: Increasing CPU voltage may result in damage to your CPU or reduce the useful life of the CPU.

CPUNBVIDControl

Allows you to set the CPU North Bridge VID voltage. Auto sets the CPU North Bridge VID voltage as

required. The adjustable range is dependent on the CPU being installed. (Default: Normal)

Note: Increasing CPU voltage may result in damage to your CPU or reduce the useful life of the CPU.

NormalCPUVcore

Displays the normal operating voltage of your CPU.

NormalCPUVcoreNB

Displays the normal operating voltage of your CPU North Bridge.

- 28 -

2-4 StandardCMOSFeatures

Date(mm:dd:yy)

Sets the system date.

Time(hh:mm:ss)

Sets the system time.

IDE Channel 0, 1 Master/Slave

IDE HDD Auto-Detection



Press <Enter> to autodetect the parameters of the SATA device on this channel.

IDE Channel 0, 1 Master/Slave



Congure your SATA devices by using one of the two methods below:

•Auto Lets the BIOS automatically detect SATA devices during the POST. (Default)

•None If no SATA devices are used, set this item to None so the system will skip

the detection of the device during the POST for faster system startup.

Access Mode Sets the hard drive access mode. Options are: Auto (default), CHS, LBA, Large.



HaltOn

Allows you to determine whether the system will stop for an error during the POST.

Options are: "All Errors," "No Errors," "All, But Keyboard". (Default)

Memory

These elds are read-only and are determined by the BIOS POST.

Standard CMOS Features

Date (mm:dd:yy) Thu, Jan 12 2012

Time (hh:mm:ss) 22:31:24

` IDEChannel0Master   [None]

` IDEChannel0Slave   [None]

` IDEChannel1Master   [None]

` IDEChannel1Slave   [None]

 HaltOn     [All,ButKeyboard]

Base Memory 640K

Extended Memory 941M

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

- 29 -

2-5 AdvancedBIOSFeatures

IGXConguration

The settings in this submenu are synchronous to those under the same items on the MB Intelligent

Tweaker(M.I.T.) main menu.

Load Line Control

Enables or disables Load Line control. This item allows you to adjust Vdroop at different levels. Enabling

Load Line control may keep the CPU voltage more constant under light and heavy CPU load. Auto lets

the BIOS automatically congure this setting. (Default: Auto)

AMD C6 Support

Allows you to determine whether to let the CPU enter C6 mode in system halt state. When enabled, the

CPU core frequency will be reduced during system halt state to decrease power consumption. The C6

state is a more enhanced power-saving state than C1. (Default: Disabled)

Virtualization

Virtualization allows a platform to run multiple operating systems and applications in independent parti-

tions. With virtualization, one computer system can function as multiple virtual systems.

(Default: Disabled)

AMD K8 Cool&Quiet control

Auto

 Lets the AMD Cool'n'Quiet driver dynamically adjust the CPU clock and VID to re-

duce heat output from your computer and its power consumption. (Default)

Disabled Disables this function.



C-state Pmin

Allows you to determine whether to let the CPU enter C1 mode in system halt state. When enabled,

the CPU core frequency and voltage will be reduced during system halt state to decrease power con-

sumption. Auto lets the BIOS automatically congure this setting. (Default: Auto)

Hard Disk Boot Priority

Species the sequence of loading the operating system from the installed hard drives. Use the up or

down arrow key to select a hard drive, then press the plus key <+> (or <PageUp>) or the minus key <-> (or

<PageDown>) to move it up or down on the list. Press <Esc> to exit this menu when nished.

EFICD/DVDBootOption

Set this item to EFI if you want to install the operating system to a hard drive larger than 2.2 TB. Make

sure the operating system to be installed supports booting from a GPT partition, such as Windows 7 64-

bit and Windows Server 2003 64-bit. Auto lets the BIOS automatically congure this setting depending

on the hard drive you install. (Default: Auto)

Advanced BIOS Features

` IGXConguration   [PressEnter]

 LoadLineControl   [Auto]

 AMDC6Support   [Disabled]

 Virtualization    [Disabled]

 AMDK8Cool&Quietcontrol  [Auto]

C-statePmin    [Auto]

` HardDiskBootPriority  [PressEnter]

 EFICD/DVDBootOption  [Auto]

 FirstBootDevice   [HardDisk]

 SecondBootDevice   [CDROM]

 ThirdBootDevice   [USB-HDD]

 PasswordCheck    [Setup]

 HDDS.M.A.R.T.Capability  [Disabled]

 AwayMode    [Disabled]

 FullScreenLOGOShow  [Enabled]

 InitDisplayFirst   [PEG]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

- 30 -

First/Second/ThirdBootDevice

Species the boot order from the available devices. Use the up or down arrow key to select a device

and press <Enter> to accept. Options are: LS120, Hard Disk, CDROM, ZIP, USB-FDD, USB-ZIP, USB-

CDROM, USB-HDD, Legacy LAN, Disabled.

Password Check

Species whether a password is required every time the system boots, or only when you enter BIOS

Setup. After conguring this item, set the password(s) under the Set Supervisor/User Password item in

the BIOS Main Menu.

Setup A password is

 only required for entering the BIOS Setup program. (Default)

System A password is required for booting the system and for entering the BIOS Setup



program.

HDD S.M.A.R.T. Capability

Enables or disables the S.M.A.R.T. (Self Monitoring and Reporting Technology) capability of your hard

drive. This feature allows your system to report read/write errors of the hard drive and to issue warnings

when a third party hardware monitor utility is installed. (Default: Disabled)

Away Mode

Enables or disables Away Mode in Windows XP Media Center operating system. Away Mode allows the

system to silently perform unattended tasks while in a low-power mode that appears off.

(Default: Disabled)

FullScreenLOGOShow

Allows you to determine whether to display the GIGABYTE Logo at system startup. Disabled displays

normal POST message. (Default: Enabled)

InitDisplayFirst

Species the rst initiation of the monitor display from the installed PCI graphics card, PCI Express

graphics card, or the onboard graphics.

Onboard Sets the onboard graphics as the rst display.



PCI Slot Sets the PCI graphics card on the PCI slot as the rst display.



PEG

Sets the PCI Express graphics card on the PCIEX16 slot as the rst display. (Default)

2-6 Integrated Peripherals

OnChipSATAController

Enables or disables the integrated SATA controllers. (Default: Enabled)

Integrated Peripherals

 OnChipSATAController  [Enabled]

 OnChipSATAType   [NativeIDE]

x OnChip SATA Port as ESP Press Enter

 OnboardLANFunction  [Enabled]

 OnboardLANBootROM  [Disabled]

` SMARTLAN    [PressEnter]

 OnboardAudioFunction  [Enabled]

 USBControllers    [Enabled]

 USBLegacyFunction   [Enabled]

 USBStorageFunction   [Enabled]

 OnboardSerialPort   [3F8/IRQ4]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

- 31 -

OnChipSATAPortasESP

OnChip SATA Port as ESP

 Port0asESP    [Disabled]

 Port1asESP    [Disabled]

 Port2asESP    [Disabled]

 Port3asESP    [Disabled]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level ``

Port0 as ESP/Port1 as ESP/Port2 as ESP/Port3 as ESP

This option is congurable only when OnChipSATAType is set to AHCI. Enabled will speed up the hot

plug detection of the connected SATA device. (Default: Disabled)

OnboardLANFunction

Enables or disables the onboard LAN function. (Default: Enabled)

If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item to

Disabled.

OnboardLANBootROM

Allows you to decide whether to activate the boot ROM integrated with the onboard LAN chip.

(Default: Disabled)

SMARTLAN(LANCableDiagnosticFunction)

SMART LAN

Start detecting at Port.....

Part1-2 Status = Open / Length = 0m

Part3-6 Status = Open / Length = 0m

Part4-5 Status = Open / Length = 0m

Part7-8 Status = Open / Length = 0m

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level ``

This motherboard incorporates cable diagnostic feature designed to detect the status of the attached LAN

cable. This feature will detect cabling issue and report the approximate distance to the fault or short.

OnChipSATAType(SATA20~SATA23connectors)

Congures the operating mode of the SATA2 0~SATA2 3 connectors.

Native IDE Allows the SATA controller to operate in Native IDE mode. (Default)



Enable Native IDE mode if you wish to install operating systems that support Native

mode.

RAID Enables RAID for the SATA controller.



AHCI Congures the SATA controllers to AHCI mode. Advanced Host Controller Interface



(AHCI) is an interface specication that allows the storage driver to enable advanced

Serial ATA features such as Native Command Queuing and hot plug.

- 32 -

OnboardAudioFunction

Enables or disables the onboard audio function. (Default: Enabled)

If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to

Disabled.

USB Controllers

Enables or disables the integrated USB controllers. (Default: Enabled)

Disabled will turn off all of the USB functionalities below.

USBLegacyFunction

Allows USB keyboard to be used in MS-DOS. (Default: Enabled)

USBStorageFunction

Determines whether to detect USB storage devices, including USB ash drives and USB hard drives

during the POST. (Default: Enabled)

OnboardSerialPort

Enables or disables the rst serial port and species its base I/O address and corresponding interrupt.

Options are: Auto, 3F8/IRQ4 (default), 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3, Disabled.

2-7 Power Management Setup

Power Management Setup

 Soft-OffbyPowerbutton  [Instant-off]

 USBWakeUpfromS3  [Enabled]

 ModemRingResume   [Disabled]

 PMEEventWakeUp   [Enabled]

HPET Support (Note)   [Enabled]

 PowerOnByMouse   [Disabled]

 PowerOnByKeyboard  [Disabled]

x KB Power ON Password Enter

 ACBackFunction   [Soft-Off]

 Power-OnbyAlarm   [Disabled]

x Date (of Month) Everyday

x Resume Time (hh:mm:ss) 0 : 0 : 0

 ErPSupport    [Disabled]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

Soft-OffbyPowerbutton

Congures the way to turn off the computer in MS-DOS mode using the power button.

Instant-Off Press the power button and then the system will be turned off instantly. (Default)



Delay 4 Sec. Press and hold the power button for 4 seconds to turn off the system. If the power



button is pressed for less than 4 seconds, the system will enter suspend mode.

USB Wake Up from S3

Allows the system to be awakened from ACPI S3 sleep state by a wake-up signal from the installed USB

device. (Default: Enabled)

Modem Ring Resume

Allows the system to be awakened from an ACPI sleep state by a wake-up signal from a modem that

supports wake-up function. (Default: Disabled)

(Note) Supported on Windows 7/Vista operating system only.

- 33 -

(Note) Supported on Windows 7/Vista operating system only.

PME Event Wake Up

Allows the system to be awakened from an ACPI sleep state by a wake-up signal from a PCI or PCIe de-

vice. Note: To use this function, you need an ATX power supply providing at least 1A on the +5VSB lead.

(Default: Enabled)

HPET Support

&(Note)

Enables or disables High Precision Event Timer (HPET) for Windows 7/Vista operating system.

(Default: Enabled)

PowerOnByMouse

Allows the system to be turned on by a PS/2 mouse wake-up event.

Note: To use this function, you need an ATX power supply providing at least 1A on the +5VSB lead.

Disabled Disables this function. (Default)



Double Click Double click on left button on the PS/2 mouse to turn on the system.



PowerOnByKeyboard

Allows the system to be turned on by a PS/2 keyboard wake-up event.

Note: you need an ATX power supply providing at least 1A on the +5VSB lead.

Disabled Disables this function. (Default)



Password Set a password with 1~5 characters to turn on the system.



Any KEY Press any key on the keyboard to turn on the system.



Keyboard 98 Press POWER button on the Windows 98 keyboard to turn on the system.



KBPowerONPassword

Set the password when PowerOnbyKeyboard is set to Password. Press <Enter> on this item and set

a password with up to 5 characters and then press <Enter> to accept. To turn on the system, enter the

password and press <Enter>.

Note: To cancel the password, press <Enter> on this item. When prompted for the password, press <En-

ter> again without entering the password to clear the password settings.

ACBackFunction

Determines the state of the system after the return of power from an AC power loss.

Soft-Off The system stays off upon the return of the AC power. (Default)



Full-On The system is turned on upon the return of the AC power.



Memory The system returns to its last known awake state upon the return of the AC power.



Power-OnbyAlarm

Determines whether to power on the system at a desired time. (Default: Disabled)

If enabled, set the date and time as following:

Date (of Month) Alarm: Turn on the system at a specic time on each day or on a specic day in a



month.

Resume Time (hh: mm: ss): Set the time at which the system will be powered on automatically.



Note: When using this function, avoid inadequate shutdown from the operating system or removal of the

AC power, or the settings may not be effective.

ErP Support

Determines whether to let the system consume less than 1W power in S5 (shutdown) state. (Default:

Disabled)

Note: When this item is set to Enabled, the following four functions will become unavailable:

PME event wake up, power on by mouse, power on by keyboard, and wake on LAN.

- 34 -

2-8 PC Health Status

Hardware Thermal Control

Enables or disables the CPU overheating protection function. When enabled, the CPU core voltage and

ratio will be reduced when the CPU is overheated. (Default: Enabled)

ResetCaseOpenStatus

Keeps or clears the record of previous chassis intrusion status. Enabled clears the record of previous

chassis intrusion status and the CaseOpened eld will show "No" at next boot. (Default: Disabled)

CaseOpened

Displays the detection status of the chassis intrusion detection device attached to the motherboard CI

header. If the system chassis cover is removed, this eld will show "Yes", otherwise it will show "No". To

clear the chassis intrusion status record, set ResetCaseOpenStatus to Enabled, save the settings to

the CMOS, and then restart your system.

CurrentVoltage(V)Vcore/DDR15V/+12V/3.3V

Displays the current system voltages.

Current System/CPU Temperature

Displays current system/CPU temperature.

CurrentCPU/SYSTEMFANSpeed(RPM)

Displays current CPU/system fan speed.

CPU Warning Temperature

Sets the warning threshold for CPU temperature. When CPU temperature exceeds the threshold,

BIOS will emit warning sound. Options are: Disabled (default), 60oC/140oF, 70oC/158oF, 80oC/176oF,

90oC/194oF.

CPU/SYSTEMFANFailWarning

Allows the system to emit warning sound if the CPU/system fan is not connected or fails. Check the fan

condition or fan connection when this occurs. (Default: Disabled)

CPUSmartFANControl

Enables or disables the CPU fan speed control function. Enabled allows the CPU fan to run at different

speed according to the CPU temperature. You can adjust the fan speed with EasyTune based on system

requirements. If disabled, the CPU fan runs at full speed. (Default: Enabled)

PC Health Status

 HardwareThermalControl  [Enabled]

ResetCaseOpenStatus  [Disabled]

Case Opened No

Vcore 1.364V

DDR15V 1.536V

+12V 11.950V

3.3V 3.048V

Current System Temperature 38oC

Current CPU Temperature 36oC

Current CPU FAN Speed 1962 RPM

Current SYSTEM FAN Speed 0 RPM

CPUWarningTemperature  [Disabled]

 CPUFANFailWarning  [Disabled]

 SYSTEMFANFailWarning  [Disabled]

 CPUSmartFANControl  [Enabled]

SystemSmartFANControl  [Enabled]

: Move Enter: Select +/-/PU/PD: Value F10: Save ESC: Exit F1: General Help

F5: Previous Values F6: Fail-Safe Defaults F7: Optimized Defaults

Item Help

Menu Level `

- 35 -

Press <Enter> on this item and then press the <Y> key to load the safest BIOS default settings.

In case system instability occurs, you may try to load Fail-Safe defaults, which are the safest and most stable

BIOS settings for the motherboard.

2-9 LoadFail-SafeDefaults

Load Fail-Safe Defaults

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

Load Fail-Safe Defaults (Y/N)? N

Press <Enter> on this item and then press the <Y> key to load the optimal BIOS default settings.

The BIOS defaults settings help the system to operate in optimum state. Always load the Optimized defaults

after updating the BIOS or after clearing the CMOS values.

2-10 LoadOptimizedDefaults

Load Optimized Defaults

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

Load Optimized Defaults (Y/N)? N

SystemSmartFANControl

Enables or disables the system fan speed control function. Enabled allows the system fan to run at dif-

ferent speed according to the system temperature. If disabled, system fan runs at full speed. (Default:

Enabled)

- 36 -

Press <Enter> on this item and type the password with up to 8 characters and then press <Enter>. You will

be requested to conrm the password. Type the password again and press <Enter>.

The BIOS Setup program allows you to specify two separate passwords:

Supervisor Password

When a system password is set and the Password Check item in AdvancedBIOSFeatures is set to

Setup, you must enter the supervisor password for entering BIOS Setup and making BIOS changes.

When the Password Check item is set to System, you must enter the supervisor password (or user

password) at system startup and when entering BIOS Setup.

User Password

When the Password Check item is set to System, you must enter the supervisor password (or user

password) at system startup to continue system boot. In BIOS Setup, you must enter the supervisor

password if you wish to make changes to BIOS settings. The user password only allows you to view the

BIOS settings but not to make changes.

To clear the password, press <Enter> on the password item and when requested for the password, press

<Enter> again. The message "PASSWORD DISABLED" will appear, indicating the password has been can-

celled.

2-11 Set Supervisor/User Password

Change/Set/Disable Password

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

Enter Password:

Press <Enter> on this item and press the <Y> key. This saves the changes to the CMOS and exits the BIOS

Setup program. Press <N> or <Esc> to return to the BIOS Setup Main Menu.

2-12 Save & Exit Setup

Save Data to CMOS

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

Save to CMOS and EXIT (Y/N)? Y

- 37 -

Press <Enter> on this item and press the <Y> key. This exits the BIOS Setup without saving the changes

made in BIOS Setup to the CMOS. Press <N> or <Esc> to return to the BIOS Setup Main Menu.

2-13 Exit Without Saving

Abandon all Data

` MB Intelligent Tweaker(M.I.T.)

` Standard CMOS Features

` Advanced BIOS Features

` Integrated Peripherals

` Power Management Setup

` PC Health Status

ESC: Quit : Select Item F11: Save CMOS to BIOS

F8: Q-Flash F10: Save & Exit Setup F12: Load CMOS from BIOS

Load Fail-Safe Defaults

Load Optimized Defaults

Set Supervisor Password

Set User Password

Save & Exit Setup

Exit Without Saving

Quit Without Saving (Y/N)? N

Chapter 3 Drivers Installation

• Before installing the drivers, rst install the operating system.

• After installing the operating system, insert the motherboard driver disk into your optical drive.

The driver Autorun screen is automatically displayed which looks like that shown in the screen

shot below. (If the driver Autorun screen does not appear automatically, go to My Computer,

double-click the optical drive and execute the Run.exe program.)

After inserting the driver disk, "Xpress Install" will automatically scan your system and then list all the drivers

that are recommended to install. You can click the Install All button and "Xpress Install" will install all the rec-

ommended drivers. Or click Install Single Items to manually select the drivers you wish to install.

- 38 -

Chapter 4 Appendix

4-1 ConguringSATAHardDrive(s)

Before you begin

Please prepare:

• At least two SATA hard drives (to ensure optimal performance, it is recommended that you use two hard

drives with identical model and capacity). If you do not want to create RAID, you may prepare only one

hard drive.

• Windows 7/Vista/XP setup disk.

• Motherboard driver disk.

• A USB oppy disk drive (needed during Windows XP installation)

• An empty formatted oppy disk (needed during Windows XP installation)

ConguringtheOnboardSATAController

A.InstallingSATAharddrive(s)inyourcomputer

Attach one end of the SATA signal cable to the rear of the SATA hard drive and the other end to available

SATA port on the motherboard. Then connect the power connector from your power supply to the hard drive.

B.ConguringSATAcontrollermodeinBIOSSetup

Make sure to configure the SATA controller mode correctly in system BIOS Setup. For the BIOS Setup

menus, refer to Chapter 2, "BIOS Setup," "Integrated Peripherals."

Steps:

1. Turn on your computer and press <Delete> to enter BIOS Setup during the POST (Power-On Self-Test).

Make sure OnChipSATAController is enabled. To enable RAID for the SATA2_0/1/2/3 connectors, set

OnChipSATAType to RAID. To enable RAID for the SATA2_4/SATA2_5 connectors, set OnChipSATA

Type to RAID and set OnChipSATAPort4/5Type to As SATA Type.

2. Save changes and exit BIOS Setup.

The BIOS Setup menus described in this section may differ from the exact settings for your moth-

erboard. The actual BIOS Setup menu options you will see shall depend on the motherboard you

have and the BIOS version.

C.ConguringRAIDsetinRAIDBIOS

Enter the RAID BIOS setup utility to congure a RAID array. After the POST memory test begins and

before the operating system boot begins, look for a message which says "Press <Ctrl-F> to enter RAID

Option ROM Utility". Press <Ctrl> + <F> to enter the RAID BIOS setup utility. To create a new array, press

<2> to enter the LDView/LDDeneMenu window. To create an array, press <Ctrl+C> to access the LD

DeneMenu. In the LDDeneMenu, use the up or down arrow key to move to an item for further congu-

ration. In the following procedure, we'll create RAID 0 as an example.

Steps:

1. Under the RAID Mode section, press the <SPACE> key to select RAID 0.

2. Set the Stripe Block size. 64 KB is the default.

3. Under the Drives Assignments section, press the up or down arrow key to highlight a drive.

4. Press the <SPACE> key or <Y>to change the Assignment option to Y. This action adds the drive to the

disk array. The Drv section will show the number of disks assigned.

- 39 -

5. Press <Ctrl>+<Y> keys to save the information. The message in Figure 1 will appear. Press <Ctrl>+<Y>

to input the array name. If you do not input the array name, the default array name will be used.

6. When the next message appears, press <Ctrl>+<Y> to clear the MBR or press other keys to ignore this

option.

7. Then, the message in Figure 8 will appear. Press <Ctrl>+<Y> to set the capacity of the RAID array or

press other keys to set the array to its maximum capacity.

8. After the creation is complete, the screen will return to LD View Menu where you will see the newly-

created array.

9. Press <Esc> to return to Main Menu and press <Esc> again if you want to exit the RAID BIOS utility.

Figure 1

Figure 2

Figure 3

Please press Ctrl-Y key to input the LD Name

or press any key to exit.

If you do not input any LD name, the default

LD name will be used.

Fast Initialization Option has been selected

It will erase the MBR data of the disk.

Press Ctrl-Y to Modify Array Capacity or press any

other key to use maximum capacity...

Making a SATA RAID/AHCI Driver Diskette

Before installing Windows XP, connect a USB oppy disk drive to your computer rst because you need to in-

stall the SATA RAID/AHCI driver from a oppy disk that contains the driver during the OS installation. To copy

the RAID/AHCI driver for Windows XP, copy all les in the \BootDrv\Hxp folder in the motherboard driver disk

to your oppy disk.

InstallingtheSATARAID/AHCIDriverandOperatingSystem

A. Installing Windows XP

Restart your system to boot from the Windows XP setup disk and press <F6> as soon as you see the mes-

sage "Press F6 if you need to install a 3rd party SCSI or RAID driver." Insert the oppy disk containing the

SATA RAID/AHCI driver. Follow the on-screen instructions to install the driver that suits your operating sys-

tem. When completed, proceed with the Windows XP installation.

B. Installing Windows 7/Vista

Restart your system to boot from the Windows 7/Vista setup disk and perform standard OS installation steps.

Select Load Driver. Insert the motherboard driver disk and then browse to the location of the driver. Then fol-

low the on-screen instructions to load the driver. The locations of the drivers for Windows 7 are as follows:

RAID driver for Windows 32-bit: \BootDrv\Hw7\RAID\W7

RAID driver for Windows 64-bit: \BootDrv\Hw7\RAID\W764A

AHCI driver for Windows 32-bit: \BootDrv\Hw7\AHCI\W7

AHCI driver for Windows 64-bit: \BootDrv\Hw7\AHCI\W764A

(Note: The LH/LH64A folder contains the driver for Windows Vista 32-bit/64-bit)

After loading the driver, continue the OS installation.

- 40 -

4-2 Regulatory Statements

RegulatoryNotices

This document must not be copied without our written permission, and the contents there of must not be

imparted to a third party nor be used for any unauthorized purpose. Contravention will be prosecuted. We

believe that the information contained herein was accurate in all respects at the time of printing. GIGABYTE

cannot, however, assume any responsibility for errors or omissions in this text. Also note that the information

in this document is subject to change without notice and should not be construed as a commitment by GIGA-

BYTE.

OurCommitmenttoPreservingtheEnvironment

In addition to high-efciency performance, all GIGABYTE motherboards fulll European Union regulations

for RoHS (Restriction of Certain Hazardous Substances in Electrical and Electronic Equipment) and WEEE

(Waste Electrical and Electronic Equipment) environmental directives, as well as most major worldwide safety

requirements. To prevent releases of harmful substances into the environment and to maximize the use of

our natural resources, GIGABYTE provides the following information on how you can responsibly recycle or

reuse most of the materials in your "end of life" product.

RestrictionofHazardousSubstances(RoHS)DirectiveStatement

GIGABYTE products have not intended to add and safe from hazardous substances (Cd, Pb, Hg, Cr+6,

PBDE and PBB). The parts and components have been carefully selected to meet RoHS requirement. More-

over, we at GIGABYTE are continuing our efforts to develop products that do not use internationally banned

toxic chemicals.

WasteElectrical&ElectronicEquipment(WEEE)DirectiveStatement

GIGABYTE will fulll the national laws as interpreted from the 2002/96/EC WEEE (Waste Electrical and Elec-

tronic Equipment) directive. The WEEE Directive species the treatment, collection, recycling and disposal of

electric and electronic devices and their components. Under the Directive, used equipment must be marked,

collected separately, and disposed of properly.

WEEE Symbol Statement

The symbol shown below is on the product or on its packaging, which indicates that this product

must not be disposed of with other waste. Instead, the device should be taken to the waste col-

lection centers for activation of the treatment, collection, recycling and disposal procedure. The

separate collection and recycling of your waste equipment at the time of disposal will help to con-

serve natural resources and ensure that it is recycled in a manner that protects human health and

the environment. For more information about where you can drop off your waste equipment for

recycling, please contact your local government ofce, your household waste disposal service or where you

purchased the product for details of environmentally safe recycling.

When your electrical or electronic equipment is no longer useful to you, "take it back" to your local or regional 

waste collection administration for recycling.

If you need further assistance in recycling, reusing in your "end of life" product, you may contact us at the 

Customer Care number listed in your product's user's manual and we will be glad to help you with your

effort.

Finally, we suggest that you practice other environmentally friendly actions by understanding and using the

energy-saving features of this product (where applicable), recycling the inner and outer packaging (including

shipping containers) this product was delivered in, and by disposing of or recycling used batteries properly.

With your help, we can reduce the amount of natural resources needed to produce electrical and electronic

equipment, minimize the use of landlls for the disposal of "end of life" products, and generally improve our

quality of life by ensuring that potentially hazardous substances are not released into the environment and

are disposed of properly.

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GIGA-BYTETECHNOLOGYCO.,LTD.

Address: No.6, Bao Chiang Road, Hsin-Tien Dist., New Taipei City 231, Taiwan

TEL: +886-2-8912-4000, FAX: +886-2-8912-4003

Tech. and Non-Tech. Support (Sales/Marketing) : http://ggts.gigabyte.com.tw

WEB address (English): http://www.gigabyte.com

WEB address (Chinese): http://www.gigabyte.tw

You may go to the GIGABYTE website, select your language in the language list on the top right corner of the website.

• GIGABYTE Global Service System

To submit a technical or non-technical (Sales/Market-

ing) question, please link to:

http://ggts.gigabyte.com.tw

Then select your language to enter the system.

Gigabyte Ga A55M Ds2 Rev 2 0 Owner S Manual

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