Irq Assignments For This Motherboard - Asus MAXIMUS VIII EXTREME User Manual

PCIEX4_4 shares bandwidth with SATA6G_56 ports. By default, this slot runs at x2 mode.
To enable x4 mode, please refer to 3.6.9 Onboard Devices Configuration.

IRQ assignments for this motherboard

PCIE_X16/X8_1
PCIE_X4_2
PCIE_X8/X4_3
PCIE_X4_4
I.G.F.X.
Intel Lan Controller
SATA Controller
High Definition Audio
XHCI Controller
Intel Alpine Ridge
ASM1142
PCIe 3.0 operating mode
Gray PCIe slot
PCIE_X16/X8_1
PCIeE_X4_2
PCIE_X8/X4_3
PCIE_X4_4
• We recommend that you provide sufficient power when running CrossFireX™ or SLI
mode.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1-4 when
using multiple graphics cards for better thermal environment.
• New 6th generation Intel
PCIe_x16/x8_1 slot switches to x8 mode when PCIe_x8/x4_3 slot is occupied.
U.2/M.2/SATAEXPRESS1 configuration
U.2, M.2, and SATAExpress1 share bandwidth with priority set to M.2. Refer to the table
below for configurations.
M.2 SATA device
inserted
Disabled
U.2
M.2 SATA mode
M.2
SATA 6G disabled,
SATAEXPRESS1
PCIe mode enabled
ASUS MAXIMUS VIII EXTREME
A B C
shared - -
- - shared
- shared -
shared - -
shared - -
shared - -
- - -
shared - -
shared - -
shared - -
shared - -
Single VGA SLI/CFX
x16 x8
-
- x8
-
Core™ processors support PCIe 3.0 speed rate.
®
M.2 PCIe device
inserted
Disabled
M.2 PCIe mode
SATA 6G enabled,
PCIe mode enabled
D E F
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
3-Way CFX
x8
- x4
x4
- -
M.2 port empty
Enabled
N/A
SATA 6G enabled,
PCIe mode enabled
G H
- - -
- - -
- - -
- - -
- - -
- - -
- - shared
- - -
- - -
- - -
- - -
4-Way CFX
x8
x4
x4
x4
®
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