Asus P9X79 - Irq Assignments for this Motherboard

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 sufcient power when running CrossFireX™ or SLI™
mode. Refer to page 2-30 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 2-28 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 – – – – – – –
PCI1 shared – – – – – – –
USB 3.0 #1 – shared – – – – – –
USB 3.0 #2 – – – shared – – – –
E-SATA shared – – – – – – –
Intel LAN – – shared – – – – –
On Chip USB1 – – – – – – shared
On Chip USB2 – – – – – – – shared
On Chip SATA – – – – shared – – –
IEEE 1394 – shared – – – – – –
HD Audio – – – – – – shared –