Gigabyte GA-990FXA-UD5 R5 Manual - Page 19

Setting up AMD CrossFire™/NVIDIA® SLI™ Configuration, Configuration

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1-6 Setting up AMD CrossFire™/NVIDIA® SLI™ Configuration A. System Requirements -- Windows 8.1/8/7 operating system -- A CrossFire/SLI-supported motherboard with two/three PCI Express x16 slots and correct driver -- Two/three CrossFire/SLI-ready graphics cards of identical brand and chip and correct driver (Current GPUs that support 3-Way CrossFire technology include the ATI Radeon™ HD 3800, HD 4800, HD 5800 series, and AMD Radeon™ HD 6800, HD 6900, HD 7800, and HD 7900 series. Current GPUs that support 3-Way SLI™ technology include the NVIDIA® 8800 GTX, 8800 Ultra, 9800 GTX, GTX 260, GTX 280, GTX 470, GTX 480, GTX 570, GTX 580, GTX 590, and GTX 600 series.) -- CrossFire (Note)/SLI bridge connectors -- A power supply with sufficient 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/three graphics cards on the PCI Express x16 slots. The following table shows the recommended configurations with two/three cards. Recommended 2/3-Way CrossFire/SLI Configurations: PCIEX16_1 PCIEX16_2 PCIEX8 PCIEX4_1 PCIEX4_2 2-Way a a - - - - - - 3-Way a a a - - - - 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. Configuring 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 Apply. (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. - 19 - Hardware Installation

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- 19 -
Hardware Installation
1-6
Setting up AMD CrossFire
™
/NVIDIA
®
SLI
™
Configuration
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. Configuring 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.)
A. System Requirements
-
Windows 8.1/8/7 operating system
-
A CrossFire/SLI-supported motherboard with two/three PCI Express x16 slots and correct driver
-
Two/three CrossFire/SLI-ready graphics cards of identical brand and chip and correct driver
(Current GPUs that support 3-Way CrossFire technology include the ATI Radeon
™
HD 3800, HD 4800, HD
5800 series, and AMD Radeon
™
HD 6800, HD 6900, HD 7800, and HD 7900 series. Current GPUs that
support 3-Way SLI
™
technology include the NVIDIA
®
8800 GTX, 8800 Ultra, 9800 GTX, GTX 260, GTX
280, GTX 470, GTX 480, GTX 570, GTX 580, GTX 590, and GTX 600 series.)
-
CrossFire
(Note)
/SLI bridge connectors
-
A power supply with sufficient 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/three graphics cards on the PCI Express
x16 slots. The following table shows the recommended configurations with two/three 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.
±
Recommended 2/3-Way CrossFire/SLI Configurations:
PCIEX16_1
PCIEX16_2
PCIEX8
PCIEX4_1
PCIEX4_2
2-Way
a
a
- -
- -
- -
3-Way
a
a
a
- -
- -