Gigabyte GA-990FXA-D3 User Manual Page 19

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- 19 - Hardware Installation
(Note) The bridge connector(s) may be needed or not depending on your graphics cards.
Procedure and driver screen for enabling CrossFireX/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 CrossFireX/SLI technology.
A. System Requirements
- Windows 7, Windows Vista or Windows XP operating system
- A CrossFireX/SLI-supported motherboard with two PCI Express x16 slots and correct driver
- Two CrossFireX/SLI-ready graphics cards of identical brand and chip and correct driver
- One CrossFire
(Note )
/SLI bridge connector
- 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 CrossFireX/SLI graphics cards on the
PCIEX16_1 and PCIEX16_2 slots.
Step 2:
Insert the CrossFire
(Note)
/SLI bridge connector in the CrossFireX/SLI gold edge connectors on top of the two
cards.
Step 3:
Plug the display cable into the graphics card on the PCIEX16_1 slot.
C. Conguring the Graphics Card Driver
C-1. To Enable CrossFireX Function
After installing the graphics card driver in the operating system, go to the Cata-
lyst Control Center. Browse to Performance\AMD CrossFireX Congura-
tions and ensure the Enable CrossFireX
check box is selected and click
Apply.
1-6 Setup of AMD CrossFireX
/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 Set SLI and Physx
Configuration screen and ensure Maximize 3D performance is
selected.
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