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•
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™ 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.
To achieve the optimum performance for CrossFireX™ mode, set the PCI Express
•
X16_2 slot (black) bandwidth BIOS item to [x4 mode]. Refer to page 3-20 for details.
•
We recommend that you provide sufficient power when running CrossFireX™ mode.
Refer to page 2-28 for details.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using
multiple graphics cards for better thermal environment. Refer to page 2-27 for details.
PCI Express sharing mode
PCIEX16_2
configuration
PCIEX16_2
Auto Mode
x1
x4 (recommend for high
x4 Mode
speed device)
* Refer to Chapter 3 for details.
IRQ assignments for this motherboard
PCIEx16_1
PCIEx16_2
PCIEx1_1
PCIEx1_2
PCI_1
PCI_2
PCI 3
LAN_1
USB 2.0 Controller 1
USB 2.0 Controller 2
USB 3.0 Controller 1
USB 3.0 Controller 2
SATA Controller
SATA 6G Controller
Marvell ATA Controller
1394 Controller
HD Audio
ASUS P8P67 REV 3.1
A
B
C
shared
–
–
shared
–
–
–
–
shared
–
–
–
–
–
shared
–
–
–
shared
–
–
–
shared
–
–
–
–
–
–
–
–
shared
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
–
–
–
PCIEX1_1
PCIEX1_2
x1
x1
N/A
N/A
D
E
F
–
–
–
–
–
–
–
–
–
shared
–
–
–
–
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
–
shared
–
shared
–
–
–
–
–
–
–
–
USB3_34
x1
N/A
G
H
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
shared
–
–
–
–
–
–
–
–
–
–
–
–
shared
–
2-15
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