Gigabyte GA-990FXA-UD5 R5 - Setting up AMD Crossfire;NVIDIA SLI Configuration

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Hardware Installation
1-6 Setting up AMD CrossFire
™
/NVIDIA
®
SLI
™
Conguration
Step 2:
Insert the CrossFire
(Note)
/SLI bridge connectors in the CrossFire/SLI gold edge connectors on top of the cards.
Step 3:
Plug the display cable into the graphics card on the PCIEX16 slot.
C.ConguringtheGraphicsCardDriver
C-1. To Enable CrossFire Function
After installing the graphics card driver in the operating system, go
to the AMD Catalyst Control Center. Browse to Performance\
AMD CrossFireX
™
and ensure the Enable AMD CrossFireX
check box is selected. If your system has more than two CrossFire
cards, select the GPU combination you want to use and click Ap-
ply.(Availablecombinationoptionsaredependentonthenumber
ofgraphicscards.)
A. System Requirements
- Windows 8.1/8/7 operating system
- A CrossFire/SLI-supported motherboard with two/three PCI Express x16 slots and correct driver
- Two/three CrossFire/SLI-ready graphics cards of identical brand and chip and correct driver
 (CurrentGPUsthatsupport3-WayCrossFiretechnologyincludetheATIRadeon
™
HD 3800, HD 4800, HD
5800 series, and AMD Radeon
™
HD 6800, HD 6900, HD 7800, and HD 7900 series. Current GPUs that
support 3-Way SLI
™
technology include the NVIDIA
®
8800 GTX, 8800 Ultra, 9800 GTX, GTX 260, GTX
280,GTX470,GTX480,GTX570,GTX580,GTX590,andGTX600series.)
- CrossFire
(Note)
/SLI bridge connectors
- Apowersupplywithsufcientpowerisrecommended(Refertothemanualofyourgraphicscardsforthe
powerrequirement)
B. Connecting the Graphics Cards
Step 1:
Observe the steps in "1-5 Installing an Expansion Card" and install two/three graphics cards on the PCI Express
x16slots.Thefollowingtableshowstherecommendedcongurationswithtwo/threecards.
(Note) Thebridgeconnector(s)maybeneededornotdependingonyourgraphicscards.
Procedure and driver screen for enabling CrossFire/SLI technology may differ by graphics cards and
driver version. Refer to the manual that came with your graphics cards for more information about
enabling CrossFire/SLI technology.
 Recommended2/3-WayCrossFire/SLICongurations:
PCIEX16_1 PCIEX16_2 PCIEX8 PCIEX4_1 PCIEX4_2
2-Way
a a
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3-Way
a a a
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