Gigabyte GA-990FXA-UD7 Manual - Page 19

Setup of AMD CrossFireX - amd 9 series motherboard

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1-6 Setup of AMD CrossFireX™ Configuration A. System Requirements - The 2-Way CrossFireX technology currently support Windows 7, Vista, XP operating systems - The 3-Way/4-Way CrossFireX technology currently support Windows 7 and Vista operating systems - A CrossFireX-supported motherboard with two/three/four PCI Express x16 slots and correct driver - Two/three/four CrossFireX-ready graphics cards of identical brand and chip and correct driver ( Current GPUs that support 3-Way/4-Way CrossFireX technology include the ATI Radeon HD 3800, HD 4800, and HD 5800 series and AMD Radeon HD 6950, HD 6970 and HD 6990 series.) - CrossFire bridge connectors (Note 1) - A power supply with sufficient power is recommended (refer to the manual of your graphics cards for the power requirement)(Note 2) B. Connecting the Graphics Cards Step 1: Observe the steps in "1-5 Installing an Expansion Card" and install two/three/four graphics cards on the PCI Express x16 slots. The following table shows the recommended configurations with two/three/four cards. Recommended 2/3/4-Way CrossFireX Configurations: PCIEX16_1 PCIEX16_2 PCIEX8_1 PCIEX8_2 PCIEX4_1 PCIEX4_2 2-Way a a -- -- - - - - 3-Way a a a -- - - - - - - a a a - - - - 4-Way a a a a - - - - Step 2: Insert the CrossFire bridge connectors (Note 1) in the CrossFireX gold edge connectors on top of the graphics cards. Step 3: Plug the display cable into the graphics card on the PCIEX16_1 slot. C. Configuring the Graphics Card Driver After installing the graphics card driver in the operating system, go to the Catalyst Control Center. Browse to Performance\AMD CrossFireX Configurations and ensure the Enable CrossFireX™ check box is selected. Select the GPU combination you want to use. (Available combination options are dependent on the number of graphics cards you install.) (Note 1) The bridge connectors may be needed or not depending on your graphics cards. (Note 2) When two or more graphics cards are to be installed, we recommend that you connect the SATA power cable from the power supply to the ATX4P connector to ensure system stability. Procedure and driver screen for enabling CrossFireX 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 technology. - 19 - Hardware Installation

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- 19 -
Hardware Installation
1-6
Setup of AMD CrossFireX
™
Configuration
A. System Requirements
- The 2-Way CrossFireX technology currently support Windows 7,
Vista, XP operating systems
- The 3-Way/4-Way CrossFireX technology currently support Windows 7 and Vista operating systems
- A CrossFireX-supported motherboard with two/three/four PCI Express x16 slots and correct driver
- Two/three/four CrossFireX-ready graphics cards of identical brand and chip and correct driver
( Current GPUs that support 3-Way/4-Way CrossFireX technology include the ATI Radeon HD 3800, HD 4800, and HD 5800 series
and AMD Radeon HD 6950, HD 6970 and HD 6990 series.)
- CrossFire
bridge connectors
(Note 1)
-
A power supply with sufficient power is recommended (refer to the manual of your graphics cards for the power requirement)
(Note 2)
B. Connecting the Graphics Cards
Step 1:
Observe the steps in "1-5 Installing an Expansion Card" and install two/three/four graphics cards on the PCI Express x16
slots. The following table shows the recommended
configurations with
two/three/four cards.
Step 2:
Insert the CrossFire
bridge connectors
(Note 1)
in the CrossFireX gold edge connectors on top of the graphics cards.
Step 3:
Plug the display cable into the graphics card on the PCIEX16_1 slot.
Recommended 2/3/4-Way CrossFireX Configurations:
PCIEX16_1
PCIEX16_2
PCIEX8_1
PCIEX8_2
PCIEX4_1
PCIEX4_2
a
a
--
--
- -
- -
a
a
a
--
- -
- -
- -
a
a
a
- -
- -
a
a
a
a
- -
- -
2-Way
3-Way
4-Way
C. Configuring the Graphics Card Driver
After installing the graphics card driver in the operating system, go to the
Catalyst Con-
trol Center
. Browse to
Performance\AMD CrossFireX Configurations
and ensure the
Enable CrossFireX
™
check box is selected. Select the GPU combination you want to
use. (Available combination options are dependent on the number of graphics cards you
install.)
(Note 1) The bridge connectors may be needed or not depending on your graphics cards.
(Note 2) When two or more graphics cards are to be installed, we recommend that you connect the SATA power cable from
the power supply to the ATX4P connector to ensure system stability.
Procedure and driver screen for enabling CrossFireX 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 technology.