•In single VGA card mode, use the PCIe 2.0 x16_1 slot (navy blue) for a PCI Express x16 graphics card to get better performance.

•In CrossFireX™ or SLI™ mode, use the PCIe 2.0 x16_1 and PCIe 2.0 x16_3 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 2-28 for details.

•Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2/3 when using multiple graphics cards for better thermal environment.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

PCIe x16_1

shared

–

–

–

–

–

–

–

PCIe x16_2

shared

–

–

–

–

–

–

–

PCIe x16_3

shared

 

–

–

–

–

–

–

PCIe x16_4

–

–

–

–

shared

–

–

–

PCIe x1

–

–

–

–

–

–

–

shared

PCI

–

–

–

–

shared

–

–

–

ASM SATA

–

–

–

–

shared

–

–

–

USB 3.0_1

–

–

–

–

–

shared

–

–

USB 3.0_2

–

–

–

–

–

–

shared

–

Realtek 8111F (LAN)

–

–

–

–

–

–

–

shared

On Chip SATA

–

–

–

shared

–

–

–

–

On Chip USB_1

–

–

shared

–

–

–

–

–

On Chip USB_2

–

–

–

–

shared

–

–

–

On Chip USB_3

–

–

–

–

–

–

shared

–

HD Audio

shared

–

–

–

–

–

–

–

Chapter 1

ASUS M5A99FX PRO R2.0

1-23