User Guide

1-16
Chapter 1: Product introduction
• InsingleVGAcardmode,usethePCIe3.0x16_1slot(gray)foraPCIExpressx16
graphics card to get better performance.
• WerecommendthatyouprovidesufcientpowerwhenrunningCrossFireX™mode.
Seepage1-23fordetails.
• ConnectachassisfantothemotherboardconnectorlabeledCHA_FAN1/2/3when
usingmultiplegraphicscardsforbetterthermalenvironment.
VGAconguration
PCI Express operating mode
PCIe 3.0 x16_1 (gray) PCIe 3.0 x16_2
SingleVGA/PCIe
card
x16(Recommendedforsingle
VGAcard)
N/A
DualVGA/PCIe
cards
x16 x4
Slot
PCI Express operating mode
Default
Auto (When x4 or faster device
is installed on PCIe x16_2)
Settings provided
by BIOS
PCIe x1_2 x1 N/A x1 N/A
PCIe x1_3 x1 N/A x1 N/A
PCIe x16_2 x2 x4 x2 x4
IRQ assignments for this motherboard
A B C D E F G H
I.G.D. Shared
– – – – – – –
HDAudioController Shared
– – – – –
–
–
XHCIController Shared
– – – – – –
–
SATAController Shared
– – – – – – –
LANController Shared
– – – –
–
– –
PCIEx16_1
Shared
– – – – – – –
PCIEx16_2
Shared –
– – – – – –
PCIEx1_1 – – – Shared – – – –
PCIEx1_2 –
–
Shared
– – – – –
AsmediaUSB3.1
Controller
–
–
–
Shared
– – – –
AsmediaPICEtoPCI
Controller
– – Shared – – – – –
M.2 Shared – –
–
–
– – –