Irq Assignments For This Motherboard - Asus F2A55 User Manual

VGA configuration
Single VGA/PCIe card
Dual VGA/PCIe card
• In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16
graphics card to get better performance.
• We recommend that you provide sufficient power when running CrossFireX™ mode.
See page 1-26 for details.
• 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

PCIEx16_1
PCIEx16_2
PCIEx1_1
PCIEx1_2
PCI1 slot
PCI2 slot
PCI3 slot
Realtek 8111F controller
ASM USB3.0
HD audio
SATA controller
Onboard USB1.0 controller
Onboard USB2.0 controller
ASUS F2A55
PCI Express operating mode
PCIe x16_1
x16 (Recommended for single VGA card)
x16
A B
– – shared
shared –
shared –
– –
– –
– –
– –
– – shared
– shared
shared –
– –
– – shared
– shared
PCIe x16_2
N/A
x4
C D E
– –
– – –
– – –
– shared –
– – shared
– – –
– – –
– –
– – –
– – –
– shared –
– –
– – –
F G H
– – –
– – –
– – –
– – –
– – –
shared – –
– shared –
– – –
– – –
– – –
– – –
– – –
– – –
1-21