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2-16 Chapter 2: Hardware information
Chapter 2
• In single VGA card mode, use the PCIe 3.0 x16_1 slot (blue) for a PCI Express x16
graphics card to get better performance.
• In CrossFireX™ or SLI™ mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_2 slots for
PCI Express x16 graphics cards to get better performance.
• We recommend that you provide sufcient power when running CrossFireX™ or SLI™
mode. Refer to page 2-29 for details.
• In 3-way SLI mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_2 and PCIe 3.0 x16_3
slots for PCI Express x16 graphics cards to get better performance.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2/3/4 when
using multiple graphics cards for better thermal environment. See page 2-27 for details.
IRQ assignments for this motherboard
A B C D E F G H
PCIEX16_1
shared – – – – – – –
PCIEX16_2
shared – – – – – – –
PCIEX16_3
shared – – – – – – –
PCIEX1_1
shared – – – – – – –
PCIEX1_2
– – – shared – – – –
PCI slot
shared – – – – – – –
USB 3.0 #1
– – – shared – – – –
USB 3.0 #2
– – shared – – – – –
e-SATA shared – – – – – – –
On Chip USB1
– – – – – – – shared
On Chip USB2
– – – – – – – shared
HD Audio – – – – – – shared –
On Chip SATA – – – – shared – – –
LAN – shared – – – – – –