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ASUS P9X79 DELUXE 2-15
Chapter 2
• In single VGA card mode, use the PCIe 3.0 x16_1 slot (navy blue) for a PCI Express
x16 graphics card to get better performance.
• In CrossFireX™ or SLI™ mode, use the PCIe 3.0 x16_1 and PCIe 3.0 x16_4 slots for
PCI Express x16 graphics cards to get better performance.
• In 3-way SLI™ mode, use the PCIe 3.0 x16_1, PCIe 3.0 x16_2 and PCIe 3.0 x16_4
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 2-31 for details.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using
multiple graphics cards for better thermal environment. See page 2-30 for details.
IRQ assignments for this motherboard
A B C D E F G H
PCIEX16_1 shared – – – – – – –
PCIEX16_2 shared – – – – – – –
PCIEX16_3 shared – – – – – – –
PCIEX16_4 shared – – – – – – –
PCIEX1_1 – – – shared – – – –
PCIEX1_2 shared – – – – – – –
ASM 1042 USB 3.0 #1 shared – – – – – – –
ASM 1042 USB 3.0 #2 – shared – – – – –
ASM 1042 USB 3.0 #3 – – shared – – – – –
ASM 1061 E-SATA shared – – – – – – –
Realtek 8111E (LAN) – shared – – – – – –
Intel LAN 82579V – – shared – – – – –
Marvell 9128 – – – shared – – – –
On Chip USB1 – – – – – – shared
On Chip USB2 – – – – – – – shared
On Chip SATA – – – – shared – – –
HD Audio – – – – – – shared –
Conguration
PCI Express sharing mode
PCIe x1_1 PCIe x1_2
Auto Mode
x1 x1
BT3 Mode
BT3 N/A
eSATA Mode
N/A eSATA