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Chapter 1: Product introduction
Chapter 1
• In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (yellow) for a PCI Express
x16 graphics card to get better performance.
• We recommend that you provide sufcient power when running CrossFireX™.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1-3 when
using multiple graphics cards for better thermal environment.
• The PCIe x16_2 slot shares bandwidth with PCIe x1_1 and PCIe x2 slots. The default
setting is x2 mode. Go to the BIOS Setup to change the settings.
VGA Conguration
PCI Express operating mode
PCIe 3.0/2.0 x16_1 PCIe 2.0 x16_2
Single VGA/PCIe card
x16
(Recommended for single VGA)
N/A
Dual VGA/PCIe card
x16 x4
IRQ assignments for this motherboard
Component A B C D E F G H
LAN – – shared – – – – –
PCIE x16_1 shared – – – – – – –
PCIE x16_2 shared – – – – – – –
PCIE x1_1 – – shared – – – – –
PCIE x1_2 – – – shared – – – –
PCI_1 – – – shared – – – –
PCI_2 shared – – – – – – –
PCI_3 – shared – – – – – –
Intel
®
PCH SATA
Controller
– – – shared – – – –
HD Audio – – – – – – shared –
USB 2.0_1 – – – – – – – shared
USB 2.0_2 – – – – shared – – –
USB 3.0 – – – – – shared – –