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_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 2-25 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 2-23 for details.

PCIEX16_3

PCI Express sharing mode

 

 

 

configuration

PCIEX16_3

PCIEX1_1PCIEX1_2USB3_34ESATA
Auto Mode

X1

X1

N/A

X1

X1

 

X4

 

 

 

 

X4 Mode

(Recommend

N/A

N/A

N/A

N/A

for high speed

 

device)

 

 

 

 

X1 Mode

X1

X1

X1

N/A

X1

* Please refer to 3-20 for details.

IRQ assignments for this motherboard

 

A

B

C

D

E

F

G

H

 

PCIEx16_1

shared

 

PCIEx16_2

shared

 

PCIEx16_3

shared

 

PCIEx1_1

shared

 

PCIEx1_2/USB3_1234

shared

 

 

PCI_1

shared

 

PCI_2

shared

 

LAN_1

 

shared

 

USB 2.0 Controller 1

shared

 

USB 2.0 Controller 2

shared

 

USB 3.0 Controller

shared

 

 

 

 

 

 

 

 

SATA Controller

shared

 

Marvell® SATA 6G

shared

 

Controller

 

 

 

 

 

 

 

 

 

 

JMicron ATA Controller

shared

 

1394 Controller

shared

 

HD Audio

shared

 

I.G.D. (Internal

shared

 

Graphics Device)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter 2

ASUS P8Z68-V PRO

2-13