•In single VGA card mode, use the PCIe 3.0 x16_1 slot (navy blue) for a PCI Express x16 graphics card to get better performance.

•In CrossFireX™ or SLI™ mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_4 slots for PCI Express x16 graphics cards to get better performance.

•In 3-way SLI™ mode, use the PCIe 3.0 x16_1, PCIe 3.0 x16_2 and PCIe 3.0 x16_4 slots for PCI Express x16 graphics cards to get better performance.

•We recommend that you provide sufficient power when running CrossFireX™ or SLI™ mode. Refer to page 2-31 for details.

•Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using multiple graphics cards for better thermal environment. See page 2-30 for details.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

 

 

Intel PCH SATA

–

–

–

–

shared

–

–

–

 

2

Controller #0

 

 

 

 

 

 

 

 

 

 

Chapter

SMBUS Controller

 

–

shared

–

–

–

–

–

 

On Chip USB #1

–

–

–

–

–

–

–

shared

 

 

On Chip USB #2

–

–

–

–

–

–

–

shared

 

 

PCIE x16_1

shared

–

–

–

–

–

–

–

 

 

PCIE x1_1

shared

–

–

–

–

–

–

–

 

 

ASM 1042 USB3.0 #1

–

–

shared

–

–

–

–

–

 

 

 

 

 

 

 

 

 

 

 

 

 

ASM 1042 USB3.0 #2

–

–

–

shared

–

–

–

–

 

 

 

 

 

 

 

 

 

 

 

 

 

ASM 1061 E-SATA

–

shared

–

–

–

–

–

–

 

 

 

 

 

 

 

 

 

 

 

 

 

Intel 82579V LAN

–

–

shared

–

–

–

–

–

 

 

HD Audio

–

–

–

–

–

–

shared

–

 

 

Marvell 9128 Hardware

–

–

–

shared

–

–

–

–

 

 

RAID Controller

 

 

 

 

 

 

 

 

 

 

 

 

PCIE x16_2

shared

–

-

–

–

–

–

–

 

 

PCIE x16_3

shared

–

–

–

–

–

–

–

 

 

PCIE x16_4

shared

–

–

–

–

–

–

–

 

 

PCIE x 1_2

shared

–

–

–

–

–

–

–

 

 

ASUS P9X79 PRO

2-15