Irq Assignments For This Motherboard - Asus H87-PRO User Manual

VGA Configuration
Single VGA/PCIe card
Dual VGA/PCIe card
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IRQ assignments for this motherboard

Component
LAN
PCIE x16_1
PCIE x16_2
PCIE x1_1
PCIE x1_2
PCI_1
PCI_2
PCI_3
Intel PCH SATA
®
Controller
HD Audio
USB 2.0_1
USB 2.0_2
USB 3.0
1-12
PCIe 3.0/2.0 x16_1
(Recommended for single VGA)
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™.
Connect a chassis fan to the motherboard connector labeled CHA_FAN1-3 when
using multiple graphics cards for better thermal environment.
The PCIe x16_2 slot shares bandwidth with PCIe x1_1 and PCIe x2 slots. The default
setting is x2 mode. Go to the BIOS Setup to change the settings.
A B
– –
shared –
shared –
– –
– –
– –
shared –
– shared
– –
– –
– –
– –
– –
PCI Express operating mode
x16
x16
C D E
shared – –
– – –
– – –
shared – –
– shared –
– shared –
– – –
– – –
– shared –
– – –
– – –
– – shared
– – –
Chapter 1: Product introduction
PCIe 2.0 x16_2
N/A
x4
F G H
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– – –
– shared –
– – shared
– – –
shared – –