Asus Z77-A Z77-A User's Manual - Page 33

IRQ assignments for this motherboard

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• 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 Component IGD Audio Controller EHCI Controller XHCI Controller SATA Controller PCIEX16_1 PCIEX16_2 PCIEX1_1 PCIEX1_2 RTL8111F PCI Slot 1 PCI Slot 2 A B shared - - - - - shared - - - C - - - - - D E - - - - - - - shared shared - - - - shared - - - - - - shared - - - - - shared - shared - - - - - shared - - - - - shared - - F - - - G H - - shared - shared - - - - - - - - - - - - - - - - - - ASUS Z77-A 1-21

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IRQ assignments for this motherboard
Component
A
B
C
D
E
F
G
H
IGD
shared
–
–
–
–
–
–
–
Audio Controller
–
–
–
–
–
–
shared
EHCI
Controller
–
–
–
–
–
–
shared
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
–
–
–
–
–
•
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.
ASUS Z77-A
1-21