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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 (gray) for a PCI Express
x16 graphics card to get better performance.
•
We recommend that you provide sufficient power when using multiple graphics cards.
See page 1-22 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
PCIE x16_1
PCIE x16_2
PCIE x1_1
PCI
Intel I219LM controller
USB 3.0 Controller
SATA Controller
HD Audio
ASUS Q170M2/CDM/SI
PCI Express operating mode
PCIe 3.0/2.0 x16_1 (gray)
x16 (Recommended for single VGA
card)
x8
A
B
C
shared
–
–
–
shared
–
–
–
shared
–
shared
–
shared
–
–
shared
–
–
shared
–
–
shared
–
–
PCIe 2.0 x16_2 (black)
N/A
x8
D
E
F
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
G
H
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1-11
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