•In single VGA card mode, use the PCIe 3.0 x16_1 slot (beige) 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_2 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 2-24 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 2-22 for details.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

 

 

 

 

PCIEX16_1

shared

–

–

–

–

–

–

–

 

 

PCIEX16_2

shared

–

–

–

–

–

–

–

 

2

PCIEX16_3

shared

–

–

–

–

–

–

–

 

Chapter

PCIEX1_1

–

–

–

shared

–

–

–

–

 

 

PCIEX1_2

shared

–

–

–

–

–

–

–

 

 

USB3.0 1

–

shared

–

–

–

–

–

–

 

 

USB3.0 2

–

–

shared

–

–

–

–

–

 

 

USB3.0 3

–

–

–

shared

–

–

–

–

 

 

eSATA

shared

–

–

–

–

–

–

–

 

 

 

Intel LAN

–

–

shared

–

–

–

–

–

 

 

Marvell 9128

–

–

–

shared

–

–

–

–

 

 

On Chip USB1

–

–

–

–

–

–

–

shared

 

 

On Chip USB2

–

–

–

–

–

–

–

shared

 

 

HD Audio

–

–

–

–

–

–

shared

–

 

 

On Chip SATA

–

–

–

–

shared

–

–

–

 

 

IEEE 1394

–

shared

–

–

–

–

–

–

 

 

PCI slot

shared

–

–

–

–

–

–

–

 

 

ASUS SABERTOOTH X79

2-13