Gigabyte GA-MA790X-UD4P User manual

GA-MA790X-UD4P
AM2+/AM2 socket motherboard for
AMD PhenomTM II X3 processor/AMD PhenomTM II X4 processor/
AMD PhenomTM FX processor/AMD PhenomTM X4 processor/
AMD PhenomTM X3 processor/AMDAthlonTM X2 processor/
AMDAthlonTM processor/AMD SempronTM X2 processor/
AMD SempronTM processor
User's Manual
Rev.1003
12ME-MA79U4P-1003R

Motherboard
GA-MA790X-UD4P
Apr. 30, 2009
Apr. 30, 2009
Motherboard
GA-MA790X-UD4P

Copyright
©2009 GIGA-BYTE TECHNOLOGY CO., LTD.All rights reserved.
Thetrademarksmentionedinthismanualarelegallyregisteredtotheirrespectiveowners.
Disclaimer
Informationinthis manualisprotectedby copyrightlawsandis thepropertyofGIGABYTE.
ChangestothespecificationsandfeaturesinthismanualmaybemadebyGIGABYTEwithoutprior
notice. Nopartofthismanualmaybereproduced,copied,translated,transmitted,orpublishedinany
formor byany meanswithout GIGABYTE'sprior written permission.
Documentation Classifications
Inordertoassistintheuseofthisproduct,GIGABYTEprovidesthefollowingtypesofdocumentations:
Forquickset-upoftheproduct,readtheQuickInstallationGuideincludedwiththeproduct.
Fordetailedproductinformation,carefullyreadtheUser'sManual.
For instructions on how to use GIGABYTE's unique features, read or download the
informationon/fromtheSupport\Motherboard\TechnologyGuidepageonourwebsite.
Forproduct-relatedinformation,checkonourwebsiteat:
http://www.gigabyte.com.tw
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
motherboardBIOS,drivers,orwhenlookingfortechnicalinformation.
Example:

- 4 -
Table of Contents
BoxContents ................................................................................................................. 6
OptionalItems................................................................................................................. 6
GA-MA790X-UD4PMotherboardLayout....................................................................... 7
BlockDiagram................................................................................................................ 8
Chapter 1 HardwareInstallation .................................................................................... 9
1-1 InstallationPrecautions ..................................................................................... 9
1-2 ProductSpecifications .................................................................................... 10
1-3 Installing the CPU and CPU Cooler.............................................................. 13
1-3-1 Installing the CPU ................................................................................................ 13
1-3-2 Installing the CPU Cooler ................................................................................... 15
1-4 InstallingtheMemory ..................................................................................... 16
1-4-1 Dual Channel Memory Configuration................................................................ 16
1-4-2 Installing a Memory............................................................................................. 17
1-5 InstallinganExpansionCard ......................................................................... 18
1-6 Configuring anATI CrossFireXTM System ...................................................... 19
1-7 InstallingtheSATABracket............................................................................. 20
1-8 BackPanelConnectors ................................................................................. 21
1-9 InternalConnectors ........................................................................................ 23
Chapter 2 BIOSSetup................................................................................................. 35
2-1 StartupScreen................................................................................................ 36
2-2 TheMainMenu .............................................................................................. 37
2-3 MB IntelligentTweaker(M.I.T.) ....................................................................... 39
2-4 StandardCMOSFeatures ............................................................................. 44
2-5 Advanced BIOS Features.............................................................................. 46
2-6 IntegratedPeripherals ..................................................................................... 48
2-7 PowerManagementSetup............................................................................. 51
2-8 PCHealth Status ........................................................................................... 53
2-9 LoadFail-SafeDefaults................................................................................... 55
2-10 LoadOptimizedDefaults ................................................................................. 55
2-11 Set Supervisor/User Password..................................................................... 56
2-12 Save & Exit Setup......................................................................................... 57
2-13 ExitWithout Saving ....................................................................................... 57

- 5 -
Chapter 3 DriversInstallation ...................................................................................... 59
3-1 InstallingChipsetDrivers ............................................................................... 59
3-2 ApplicationSoftware....................................................................................... 60
3-3 TechnicalManuals.......................................................................................... 60
3-4 Contact........................................................................................................... 61
3-5 System........................................................................................................... 61
3-6 DownloadCenter............................................................................................ 62
Chapter 4 UniqueFeatures......................................................................................... 63
4-1 XpressRecovery2 ......................................................................................... 63
4-2 BIOS Update Utilities..................................................................................... 66
4-2-1 Updating the BIOS with the Q-Flash Utility...................................................... 66
4-2-2 Updating the BIOS with the @BIOS Utility ....................................................... 69
4-3 EasyTune6.................................................................................................... 70
4-4 Easy Energy Saver ...................................................................................... 71
4-5 Q-Share ......................................................................................................... 73
4-6 TimeRepair .................................................................................................... 74
Chapter 5 Appendix .................................................................................................... 75
5-1 Configuring SATAHardDrive(s) .................................................................... 75
5-1-1 Configuring AMD SB750 SATA Controllers ...................................................... 75
5-1-2 Configuring GIGABYTE SATA2 SATA Controller ............................................. 81
5-1-3 Making a SATA RAID/AHCI Driver Diskette for Windows XP........................ 87
5-1-4 Installing the SATA RAID/AHCI Driver and Operating System ...................... 88
5-2 ConfiguringAudioInputandOutput ................................................................. 97
5-2-1 Configuring 2/4/5.1/7.1-Channel Audio ............................................................ 97
5-2-2 Configuring S/PDIF In/Out .................................................................................. 99
5-2-3 Enabling the Dolby Home Theater Function .................................................. 101
5-2-4 Configuring Microphone Recording ................................................................. 102
5-2-5 Using the Sound Recorder............................................................................... 104
5-3 Troubleshooting............................................................................................. 105
5-3-1 Frequently Asked Questions ........................................................................... 105
5-3-2 Troubleshooting Procedure .............................................................................. 106
5-4 RegulatoryStatements ................................................................................. 108

- 6 -
Box Contents
GA-MA790X-UD4Pmotherboard
Motherboarddriverdisk
User'sManual
QuickInstallationGuide
OneIDE cable
FourSATA3Gb/scables
OneSATAbracket
I/O Shield
Optional Items
FloppyDisk Drive cable(Part No.12CF1-1FD001-7*R)
2-portUSB 2.0bracket (PartNo. 12CR1-1UB030-5*R)
2-portIEEE1394abracket(Part No.12CF1-1IE008-0*R)
2-portSATApower cable(Part No.12CF1-2SERPW-0*R)
COM port cable (Part No. 12CF1-1CM001-3*R)
S/PDIF in cable (Part No. 12CR1-1SPDIN-0*R)
•Thebox contentsaboveare forreference only andthe actual itemsshall depend onproduct packageyouobtain.
Theboxcontentsaresubjecttochangewithoutnotice.
•Themotherboardimageisforreferenceonly.

- 7 -
GA-MA790X-UD4P Motherboard Layout
KB_MS
Socket AM2
ATX
GA-MA790X-UD4P
USB LAN
F_AUDIO
M_BIOS
FDD
PCIEX16_1
IT8720
IDE
DDR2_1
DDR2_2
DDR2_3
DDR2_4
F_1394
TSB43AB23
PCIEX1_1
PCI1
BATTERY
CODEC
ATX_12V_2X4
AMD 790X
COM
PWR_LED
F_USB1
CLR_CMOS
RTL8111C/D(L)
CPU_FAN
GSATA2_0 GSATA2_1
F_USB2
PCI2
SYS_FAN2
AMD SB750
F_PANEL
CI
SATA2_4
PWR_FAN
B_BIOS
AUDIO
RCA_SPDIF
R_USB
USB_1394_1
USB_1394
PCIEX1_2
PCIEX1_3
PCIEX8_1
SATA2_5
SYS_FAN1
SATA2_2
SATA2_3
SATA2_0
SATA2_1
GIGABYTE
SATA2
SPDIF_IN
SPDIF_OUT
CD_IN

- 8 -
Block Diagram
(Note1) Foroptimumperformance,ifonlyonePCIExpressgraphicscardistobeinstalled,besuretoinstallitinthePCIEX16_1
slot.ThePCIEX8_1slotsharesbandwidthwiththePCIEX16_1slot.WhenPCIEX8_1ispopulatedwithaPCIExpress
graphicscard, the PCIEX16_1slot will operate atup to x8mode.
(Note2) Whether1066MHzorabovememoryspeedissupporteddependsontheCPUbeingused.
AM3/AM2+/AM2
CPU
CPU CLK+/-(200 MHz)
Hyper Transport 3.0
AMD 790X
DDR2 1333(O.C.)/1066(Note 2)/800 MHz
Dual Channel Memory
2 PCIe x8 (Note 1)
1 PCIe x16 (Note 1)
or
Switch
PCIe CLK
(100 MHz)
PCI Express Bus
ATA-133/100/66/33
IDE Channel
LPC BUS Floppy
COM Port
PS/2 KB/Mouse
IT8720
Dual BIOS
6 SATA 3Gb/s
12 USB Ports
PCI Bus
Line Out
MIC
CODEC
Line In
S/PDIF In
S/PDIF Out
Side Speaker Out
Center/Subwoofer Speaker Out
Surround Speaker Out
2 PCI
3 IEEE 1394a
TSB43AB23
AMD SB750
3 PCI Express x1
PCI Express Bus
x1
PCIe CLK
(100 MHz)
x1 x1
LAN
x1
2SATA3Gb/s GIGABYTE
SATA2
RTL8111C/D(L)
RJ45

Hardware Installation- 9 -
1-1 Installation Precautions
Themotherboardcontainsnumerousdelicateelectroniccircuitsandcomponentswhichcanbecome
damagedas aresult ofelectrostaticdischarge (ESD).Prior toinstallation,carefully readthe user's
manualandfollowtheseprocedures:
•Priortoinstallation,donotremoveorbreakmotherboardS/N(SerialNumber)stickeror
warrantystickerprovidedbyyourdealer.Thesestickersarerequiredforwarrantyvalidation.
•AlwaysremovetheAC powerbyunpluggingthepower cordfromthepoweroutlet before
installingorremovingthemotherboardorotherhardwarecomponents.
•Whenconnectinghardwarecomponentstotheinternalconnectorsonthemotherboard,
makesuretheyareconnectedtightlyandsecurely.
•Whenhandlingthemotherboard,avoidtouchinganymetalleadsorconnectors.
•Itisbesttowearanelectrostaticdischarge(ESD)wriststrapwhenhandlingelectronic
componentssuchasamotherboard,CPUormemory.IfyoudonothaveanESDwriststrap,
keepyourhandsdryandfirsttouchametalobjecttoeliminatestaticelectricity.
•Priortoinstallingthemotherboard,pleasehaveitontopofanantistaticpadorwithinan
electrostaticshieldingcontainer.
•Beforeunpluggingthepowersupplycablefromthemotherboard,makesurethepowersupply
hasbeenturnedoff.
•Beforeturningonthepower,makesurethepowersupplyvoltagehasbeensetaccordingto
thelocalvoltagestandard.
•Beforeusingtheproduct,pleaseverifythatallcablesandpowerconnectorsofyourhardware
componentsareconnected.
•Topreventdamagetothemotherboard,donotallowscrewstocomeincontactwiththe
motherboardcircuitoritscomponents.
•Makesuretherearenoleftoverscrewsormetalcomponentsplacedonthemotherboardor
withinthecomputercasing.
•Donotplacethecomputersystemonanunevensurface
.
•Donotplacethecomputersysteminahigh-temperatureenvironment.
•Turningonthecomputerpowerduringtheinstallationprocesscanleadtodamagetosystem
componentsaswell asphysicalharmto theuser.
•Ifyouareuncertainaboutanyinstallationstepsorhaveaproblemrelatedtotheuseofthe
product,pleaseconsultacertifiedcomputertechnician.
Chapter 1 Hardware Installation

GA-MA790X-UD4P Motherboard - 10 -
1-2 Product Specifications
CPU Support for AM3/AM2+/AM2 processors:
AMD PhenomTM II X3 processor/AMD PhenomTM II X4 processor/
AMD PhenomTM FX processor/AMD PhenomTM X4 processor/
AMD PhenomTM X3 processor/AMD AthlonTM X2 processor/
AMD AthlonTM processor/AMD SempronTM X2 processor/
AMD SempronTM processor
(Go to GIGABYTE's website for the latest CPU support list.)
Hyper Transport Bus 5200/2000 MT/s
Chipset North Bridge: AMD 790X
South Bridge: AMD SB750
Memory 4 x 1.8V DDR2 DIMM sockets supporting up to 16 GB of system memory (Note 1)
Dual channel memory architecture
Support for DDR2 1333(O.C.)/1066 (Note 2)/800 MHz memory modules
(Go to GIGABYTE's website for the latest memory support list.)
Audio Realtek ALC889A codec
High Definition Audio
2/4/5.1/7.1-channel
Support for Dolby®Home Theater
Support for S/PDIF In/Out
Support for CD In
LAN RTL8111C/D(L) chip (10/100/1000 Mbit)
Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16_1) (Note 3)
1 x PCI Express x16 slot, running at x8 (PCIEX8_1) (Note 3)
(The PCIEX16_1 and PCIEX8_1 slots support ATI CrossFireXTM technology
and conform to PCI Express 2.0 standard.)
3 x PCI Express x1 slots
2 x PCI slots
Storage Interface South Bridge:
- 1 x IDE connector supportingATA-133/100/66/33 and up to 2 IDE devices
- 6 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3,
SATA2_4, SATA2_5) supporting up to 6 SATA 3Gb/s devices
- Support for SATA RAID 0, RAID 1, RAID 5, RAID 10, and JBOD
GIGABYTE SATA2 chip:
- 2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to
2 SATA 3Gb/s devices
- Support for SATA RAID 0, RAID 1, and JBOD
iTE IT8720 chip:
- 1 x floppy disk drive connector supporting up to 1 floppy disk drive
IEEE 1394 T.I. TSB43AB23 chip
Up to 3 IEEE 1394a ports (2 on the back panel, 1 via the IEEE 1394a bracket
connected to the internal IEEE 1394a header)
USB Integrated in the South Bridge
Up to 12 USB 2.0/1.1 ports (8 on the back panel, 4 via the USB brackets
connected to the internal USB headers)

Hardware Installation- 11 -
Internal Connectors 1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x floppy disk drive connector
1 x IDE connector
8 x SATA 3Gb/s connectors
1 x CPU fan header
2 x system fan header
1 x power fan header
1 x front panel header
1 x front panel audio header
1 x CD In connector
1 x S/PDIF In header
1 x S/PDIF Out header
1 x IEEE 1394a header
2 x USB 2.0/1.1 headers
1 x serial port header
1 x chassis intrusion header
1 x power LED header
Back Panel 1 x PS/2 keyboard port
Connectors 1 x PS/2 mouse port
1 x coaxial S/PDIF Out connector
1 x optical S/PDIF Out connector
8 x USB 2.0/1.1 ports
2 x IEEE 1394a ports
1 x RJ-45 port
6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side
Speaker Out/Line In/Line Out/Microphone)
I/O Controller iTE IT8720 chip
Hardware Monitor System voltage detection
CPU/System temperature detection
CPU/System/Power fan speed detection
CPU overheating warning
CPU/System/Power fan fail warning
CPU/System fan speed control (Note 4)
BIOS 2 x 8 Mbit flash
Use of licensed AWARD BIOS
Support for DualBIOSTM
PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b

GA-MA790X-UD4P Motherboard - 12 -
Unique Features Support for @BIOS
Support for Q-Flash
Support for Virtual Dual BIOS
Support for Download Center
Support for Xpress Install
Support for Xpress Recovery2
Support for EasyTune(Note 5)
Support for Easy Energy Saver(Note 6)
Support for Time Repair
Support for Q-Share
Bundled Software Norton Internet Security (OEM version)
Operating System Support for Microsoft®Windows®Vista/XP
Form Factor ATX Form Factor; 30.5cm x 23.3cm
(Note 1) Due to Windows Vista/XP 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.
(Note 2) Whether 1066 MHz or above memory speed is supported depends on the CPU being used.
(Note 3) For optimum performance, if only one PCI Express graphics card is to be installed, be sure
to install it in the PCIEX16_1 slot. The PCIEX8_1 slot shares bandwidth with the PCIEX16_1
slot. When PCIEX8_1 is populated with a PCI Express graphics card, the PCIEX16_1 slot will
operate at up to x8 mode.
(Note 4) Whether the CPU/system fan speed control function is supported will depend on the CPU/
system cooler you install.
(Note 5) Available functions in EasyTune may differ by motherboard model.
(Note 6) Due to the hardware limitation, you must install the AMD AM3 PhenomTM II/AM2+ PhenomTM
Series CPU toenable support for Easy Energy Saver.

Hardware Installation- 13 -
1-3 Installing the CPU and CPU Cooler
Read the following guidelines before you begin to install the CPU:
•Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
•Always turn off the computer and unplug the power cord from the power outlet before
installing the CPU to prevent hardware damage.
•Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly.
•Apply an even and thin layer of thermal grease on the surface of the CPU.
•Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and
damage of the CPU may occur.
•Set the CPU host frequency in accordance with the CPU specifications. It is not recom-
mended that the system bus frequency be set beyond hardware specifications since it
does not meet the standard requirements for the peripherals. If you wish to set the frequency
beyond the standard specifications, please do so according to your hardware specifications
including the CPU, graphics card, memory, hard drive, etc.
1-3-1 Installing the CPU
A. Locate the pin one (denoted by a small triangle) of the CPU socket and the CPU.
AM3/AM2+/AM2CPU
AM2Socket
A Small Triangle Mark
Denotes Pin One of the
Socket
ASmallTriangleMarking
Denotes CPU Pin One

GA-MA790X-UD4P Motherboard - 14 -
Do not force the CPU into the CPU socket. The CPU cannot fit in if oriented incorrectly. Adjust
the CPU orientation if this occurs.
Step 2:
Align the CPU pin one (small triangle marking)
with the triangle mark on the CPU socket and
gently insert the CPU into the socket. Make
sure that the CPU pins fit perfectly into their
holes. Once the CPU is positioned into its
socket, place one finger down on the middle of
the CPU, lowering the locking lever and latch-
ing it into the fully locked position.
Step 1:
Completely lift up the CPU socket locking lever.
CPU Socket Locking
Lever
B. Follow the steps below to correctly install the CPU into the motherboard CPU socket.
Before installing the CPU, make sure to turn off the computer and unplug the power
cord from the power outlet to prevent damage to the CPU.

Hardware Installation- 15 -
Use extreme care when removing the CPU cooler because the thermal grease/tape between
the CPU cooler and CPU may adhere to the CPU. Inadequately removing the CPU cooler
may damage the CPU.
1-3-2 Installing the CPU Cooler
Follow the steps below to correctly install the CPU cooler on the CPU. (The following procedure uses
the GIGABYTE cooler as the example.)
Step 1:
Apply an even and thin layer of thermal grease
on the surface of the installed CPU.
Step 2:
Place the CPU cooler on the CPU.
Step 4:
Turn the cam handle from the left side to the
right side (as the picture above shows) to lock
into place. (Refer to your CPU cooler installa-
tion manual for instructions on installing the
cooler.)
Step 3:
Hook the CPU cooler clip to the mounting lug on
one side of the retention frame. On the other side,
push straight down on the the CPU cooler clip to
hook it to the mounting lug on the retention frame.
Step 5:
Finally, attach the power connector of the CPU
cooler to the CPU fan header (CPU_FAN) on
the motherboard.

GA-MA790X-UD4P Motherboard - 16 -
1-4 Installing the Memory
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 memory support list.)
•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
direction. If you are unable to insert the memory, switch the direction.
Due to CPU limitation, read the following guidelines before installing the memory in Dual Channel mode.
1. Dual Channel mode cannot be enabled if only one DDR2 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed in the same
colored DDR2 sockets for optimum performance.
1-4-1 Dual Channel Memory Configuration
This motherboard provides four DDR2 memory sockets and supports Dual Channel
Technology. After the memory is installed, the BIOS will automatically detect the
specifications and capacity of the memory. Enabling Dual Channel memory mode
will double the original memory bandwidth.
The four DDR2 memory sockets are divided into two channels and each channel has two memory
sockets as following:
Channel 0: DDR2_1, DDR2_3
Channel 1: DDR2_2, DDR2_4
DDR2_1 DDR2_2
DDR2_3
DDR2_4
DualChannelMemoryConfigurationsTable
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
Two Modules
Four Modules
DDR2_1 DDR2_2 DDR2_3 DDR2_4
DS/SS DS/SS - - - -
- - - - DS/SS DS/SS
DS/SS DS/SS DS/SS DS/SS
If two memory modules are to be installed, it is recom-
mended that you install them in the DDR2_1 and DDR2_2
sockets.

Hardware Installation- 17 -
1-4-2 Installing a Memory
Notch
Before installing a memory module , make sure to turn off the computer and unplug
the power cord from the power outlet to prevent damage to the memory module.
DDR2 DIMMs are not compatible to DDR DIMMs. Be sure to install DDR2 DIMMs on
this motherboard.
A DDR2 memory module has a notch, so it can only fit in one direction. Follow the steps below to
correctly install your memory modules in the memory sockets.
Step 1:
Note the orientation of the memory module. Spread the retaining
clips at both ends of the memory socket. Place the memory
module on the socket. As indicated in the picture on the left,
place your fingers on the top edge of the memory, push down
on the memory and insert it vertically into the memory socket.
Step 2:
The clips at both ends of the socket will snap into place when
the memory module is securely inserted.
DDR2 DIMM

GA-MA790X-UD4P Motherboard - 18 -
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.
Follow the steps below to correctly install your expansion card in the expansion slot.
1. Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.
2. Align the card with the slot, and press down on the card until it is fully seated in the slot.
3. Make sure the metal contacts on the card are completely inserted into the slot.
4. Secure the card's metal bracket to the chassis back panel with a screw.
5. After installing all expansion cards, replace the chassis cover(s).
6. Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for
your expansion card(s).
7. Install the driver provided with the expansion card in your operating system.
PCI Express x1 Slot
PCI Slot
PCI Express x16 Slot (PCIEX8_1)
Example: Installing and Removing a PCI Express Graphics Card:
•Installing a Graphics Card:
Gently push down on the top edge of the card
until it is fully inserted into the PCI Express slot.
Make sure the card is securely seated in the
slot and does not rock.
•Removing the Card from
the PCIEX16_1 slot:
Gently push back on
the lever on the slot
and then lift the card
straight out from the slot.
•Removing the Card
from the PCIEX8_1 slot:
Press the white latch at
the end of the PCI Ex-
press slot to release the
card and then pull the
card straight up from the
slot.
PCI Express x16 Slot (PCIEX16_1)

Hardware Installation- 19 -
To enable CrossFireXTM technology, you need two graphics cards that supportATI CrossFireTM technology.
Before You Begin--
A. Power Requirements:
Use a power supply that is able to provide sufficient power to fully support an CrossFireX configuration and
other components in your system. We recommend a power supply that provides at least 20A 12V current.
The exact power requirements depend on your overall system configurations.
B. Supported Operating Systems:
Windows Vista and Windows XP.
C. BIOS Settings:
Before configuring your system for CrossFireX, make sure to set Init Display First under Advanced BIOS
Features in BIOS Setup to PEG first. (Start your system with a single PCIe x16 graphics card and then go
to BIOS Setup to set Init Display First to PEG. Then install the second graphics card to enable CrossFire.)
1-6 Configuring anATI CrossFireXTM System
Enabling CrossFireX Mode--
Connecting Two Graphics Cards:
Step 1:
Observe the steps in "1-5 Installing an Expansion Card" and install
the graphics cards in the PCIEX16_1 slot and the PCIEX8_1 slot.
Step 2:
Depending on your graphics cards, install the connecting bridges
on the two cards.
(Note:ProcedureforenablingCrossFireXmayslightlydifferbygraphicscards.Refer
tothemanualthatcamewithyourgraphicscardsformoreinformationaboutenabling
CrossFireX.)
Graphics Card Driver Setting:
After installing the graphics card driver in your operating system,
access the Catalyst Control Center. From the CATALYST Con-
trol Center, enter the CrossFire menu and select the Enable
CrossFire checkbox to complete the configuration.
Step 3:
Connect your LCD monitor cable to the DVI port on the graphics
card on the PCIEX16_1 slot (or connect your D-Sub monitor via a
DVI-to-D-Sub adapter).

GA-MA790X-UD4P Motherboard - 20 -
1-7 Installing the SATABracket
The SATA bracket includes one SATA bracket, one
SATA signal cable, and one SATA power cable.
Step 1:
Locate one free PCI
slot and secure the
SATA bracket to the
chassis back panel
with a screw.
Follow the steps below to install the SATA bracket:
Step 2:
Connect the SATA
cablefromthe bracket
to the SATA port on
your motherboard.
Step 3:
Connect the power
cablefromthe bracket
to the power supply.
Step 4:
Plug one end of the
SATA signal cable into
the external SATA con-
nector on the bracket.
Then attach the SATA
power cable to the
power connector on
the bracket.
The SATA bracket allows you to connect external SATA device(s) to your system by expanding the
internal SATA port(s) to the chassis back panel.
•Turn off your system and the power switch on the power supply before installing or
removing the SATA bracket and SATA power cable to prevent damage to hardware.
•Insert the SATA signal cable and SATA power cable securely into the corresponding connec-
tors when installing.
Step 5:
Connect the other ends of the SATA signal cable and SATA power cable
to your SATA device. For SATA device in external enclosure, you only
need to connect the SATA signal cable. Before connecting the SATA signal
cable, make sure to turn off the power of the external enclosure.
SATABracket
External
SATA
Connector Power
Connector External SATA
Connector
SATA Signal Cable SATA Power Cable