Configuring An Ati Crossfirex; Tm System - Gigabyte GA-MA790FX-UD5P User Manual

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Configuring an ATI CrossFireX

System
TM
To enable CrossFireX technology, you need two graphics cards that support ATI CrossFire technology.
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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 CrossFireX.)
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 PCIEX16_2 slot.
Step 2:
Depending on your graphics cards, install the connecting bridges
on the two cards.
(Note: Procedure for enabling CrossFireX may slightly differ by graphics cards. Refer
to the manual that came with your graphics cards for more information about enabling
CrossFireX.)
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).
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.
- 19 - Hardware Installation