Asus F2A55 F2A55 User's Manual - Page 33

IRQ assignments for this motherboard

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

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