Irq Assignments For This Motherboard - Asus Z87M-PLUS User Manual

VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe card
• In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (yellow) for a PCI Express
x16 graphics card 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.
• The PCIe x16_2 slot shares bandwidth with PCIe x1_2 slot. The default setting is x2
mode. Go to the BIOS setup to change the settings.

IRQ assignments for this motherboard

PCIe x16_1
PCIe x16_2
PCIe x1_1
PCIe x1_2
Intel SATA Controller
Realtek LAN
Intel xHCI
Intel EHCI 1
Intel EHCI 2
HD Audio
ASUS Z87M-PLUS
PCIe Express operating mode
PCIe 3.0/2.0 x16_1
x16 (single VGA recommended)
x16
A B C
shared – –
– shared –
– – –
– shared –
– – –
– – shared
– – –
– – –
– – –
– – –
PCIe 2.0 x16_2
N/A
x4
D E F
– – –
– – –
shared – –
– – –
shared – –
– – –
– – shared
– – –
– shared –
– – –
G H
– –
– –
– –
– –
– –
– –
– –
– shared
– –
shared –
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