•
In single VGA card mode, use the PCIe 2.0 x16_1 slot (navy blue) for a PCI Express
x16 graphics card to get better performance.
•
In CrossFireX™ or SLI™ mode, use the PCIe 2.0 x16_1 and PCIe 2.0 x16_3 slots for
PCI Express x16 graphics cards to get better performance.
•
We recommend that you provide sufficient power when running CrossFireX™ or SLI™
mode. Refer to page 2-28 for details.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2/3 when
using multiple graphics cards for better thermal environment.
IRQ assignments for this motherboard
PCIe x16_1
PCIe x16_2
PCIe x16_3
PCIe x16_4
PCIe x1
PCI
ASM SATA
USB 3.0_1
USB 3.0_2
Realtek 8111F (LAN)
On Chip SATA
On Chip USB_1
On Chip USB_2
On Chip USB_3
HD Audio
ASUS M5A99FX PRO R2.0
A
B
C
shared
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shared
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shared
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shared
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shared
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D
E
F
–
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–
–
–
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shared
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–
–
–
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shared
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shared
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shared
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–
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shared
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–
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shared
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–
–
–
–
–
–
G
H
–
–
–
–
–
–
–
–
–
shared
–
–
–
–
–
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shared
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shared
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shared
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1-23