In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (blue) for a PCI Express x16 graphics card to get better performance.

In CrossFireX™ mode, use the PCIe 3.0/2.0 x16_1 and PCIe 2.0 x16_2 slots for PCI Express x16 graphics cards to get better performance.

We recommend that you provide sufficient power when running CrossFireX™ mode.

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

IRQ assignments for this motherboard

IGD

A

B

C

D

E

F

G

H

shared

 

Audio Controller

 

shared

shared

EHCI Controller

 

XHCI Controller

shared

 

SATA Controller

shared

 

 

PCIEX16_1

shared

 

PCIEX16_2

shared

 

PCIEX1_1

shared

 

PCIEX1_2

shared

 

RTL8111F

shared

 

PCI Slot 1

shared

 

PCI Slot 2

shared

 

Chapter 1

ASUS P8Z77-V LX2

1-17