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ASUS A88X-PRO 2-17
Chapter 2
IRQ assignments for this motherboard
A B C D E F G H
PCIE x16_1 – – shared – – – – –
PCIE x16_2 – – – shared – – – –
PCIE x16_3 shared – – – – – – –
PCIE x1_1 shared – – – – – – –
PCIE x1_2 – – – shared – – – –
PCI_1 – – – – shared – – –
PCI_2
–
– –
– –
shared
– –
LAN – – shared – – – – –
ASMedia USB 3.0
controller
– shared – – – – – –
AMD FCH USB3.0
Controller_1
– – shared – – – – –
AMD FCH USB3.0
Controller_2
– shared – – – – – –
AMD FCH SATA
Controller
– – – shared – – – –
HD Audio shared – – – – – – –
Onboard VGA Controller – shared – – – – – –
• In single VGA card mode, use the PCIe 2.0 x16_1 slot (yellow) for a PCI Express x16
graphics card to get better performance.
• In CrossFireX™ mode, use the PCIe 2.0 x16_1 and PCIe 2.0 x16_2 slots for PCI
Express x16 graphics cards to get better performance.
• We recommend that you provide sufcient power when running CrossFireX™ mode.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2/3/4 when
using multiple graphics cards for better thermal environment.