5 pci express x16 slots, Pci express x16 slots -20, Irq assignments for this motherboard – Asus F2A85-M2 User Manual
Page 32

1-20
Chapter 1: Product introduction
•
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.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN when using
multiple graphics cards for better thermal environment.
VGA configuration
PCI Express operating mode
PCIe x16_1
PCIe x4_1
Single VGA/PCIe card
x16 (Recommended for single VGA card)
N/A
Dual VGA/PCIe card
x16
x4
1.6.5
PCI Express x16 slots
This motherboard supports two PCI Express x16 graphics cards that comply with the PCI
Express specifications.
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
Onchip Chip SATA
-
-
-
V
-
-
-
-
Realtek 8111DP
-
V
-
-
-
-
-
-
PCI Slot
-
-
-
-
V
-
-
-
HD audio
V
-
-
-
-
-
-
-
On Chip USB OHCI 1/2/3/4
-
-
V
-
-
-
-
-
On Chip USB EHCI 1/2/3/4
-
V
-
-
-
-
-
-
On Chip USB XHCI 1
-
-
V
-
-
-
-
-
On Chip USB XHCI 2
-
V
-
-
-
-
-
-
PCIe X16
-
-
V
-
-
-
-
-
PCIe X1_1
V
-
-
-
-
-
-
-
PCIe X4_1
V
-
-
-
-
-
-
-
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