Gigabyte GA-P55A-UD7 User Manual download pdf (Page 20)

- 20 -Hardware Installation

1-7 Setup of ATI CrossFireX

™

/NVIDIA SLI Conguration

A. System Requirements

- The 2-Way SLI and 2-Way CrossFireX technologies currently support Windows 7, Vista, XP operating systems

- The 3-Way SLI and 3-Way CrossFireX technologies currently support Windows 7 and Vista operating systems

- A CrossFireX/SLI-supported motherboard with two/three PCI Express x16 slots and correct driver

- Two/three CrossFireX/SLI-ready graphics cards of identical brand and chip and correct driver

(Current NVIDIA GPUs that support 3-Way SLI technology include the 8800 GTX, 8800 Ultra, 9800 GTX, GTX 260 and

GTX 280. Current ATI GPUs that support 3-Way CrossFireX technology include the Radeon HD 3800, 4800, and 5800 series)

- One/two 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 "1-6 Installing an Expansion Card" and install two/three CrossFireX/SLI graphics cards on the PCI Ex-

press x16 slots. (To set up a 2-Way conguration, we recommend installing the graphics cards on the PCIEX16_1 and

PCIEX16_2 slots. )

Step 2:

Insert the CrossFire

(Note )

/SLI bridge connectors in the CrossFireX/SLI gold edge connectors on top of the two/three cards.

Step 3:

Plug the display cable into the graphics card on the PCIEX16_1 slot.

(Note) The bridge connectors may be needed or not depending on your graphics cards.

C. Conguring the Graphics Card Driver

C-1. To Enable CrossFireX Function

For 2-Way CrossFireX:

After installing the

graphics card driver in

the operating system, go

to the Catalyst Control

Center. Browse to the

CrossFireX menu and

ensure the Enable

CrossFireX

™

check box

is selected.

For 3-Way CrossFireX:

After installing the graph-

ic s ca rd d river i n t he

operating system, go to

the C atalyst C ont rol

Center. Browse to the

CrossFireX menu, select

the Enable CrossFireX

™

check box, and select the

3 GPUs combination.

Click OK to apply.

For 2-Way/3-Way SLI:

After installing the graphics card driver in the operating system, go to the NVIDIA Control

Panel. Browse to the Set SLI and Physx Conguration screen and ensure the SLI con-

guration and Physx is enabled.

C-2. To Enable SLI Function

Procedure and driver screen for enabling CrossFireX/SLI technology may differ by graphics cards. Refer to the

manual that came with your graphics cards for more information about enabling CrossFireX/SLI technology.

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