Gigabyte GA-990XA-UD3 R5 - Setting up AMD Crossfire;NVIDIA SLI Configuration

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Hardware Installation
1-6 Setting up AMD CrossFire
™
/NVIDIA
®
SLI
™
Conguration
C-2. To Enable SLI Function
After installing the graphics card driver in the operating system, go to
the NVIDIA Control Panel. Browse to the CongureSLI,Surround,
Physx screen and ensure Maximize 3D performance is enabled.
A. System Requirements
- Windows 8.1/8/7 operating system
- A CrossFire/SLI-supported motherboard with two PCI Express x16 slots and correct driver
- Two CrossFire/SLI-ready graphics cards of identical brand and chip and correct driver
- 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 CrossFire/SLI graphics cards on the
PCIEX16 and PCIEX8 slots.
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.)
(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.