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ASUS P8H77-M PRO
2-15
Chapter 2
• PCIe 3.0 support depends on the CPU type and requires a PCIe 3.0 VGA card.
• In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (blue) for a PCI Express
x16 graphics card to get better performance.
• In CrossFireX™ mode, use the PCIe 3.0/2.0 x16_1 and PCIe 2.0 x16_2 slots for PCI
Express x16 graphics cards to get better performance.
• We recommend that you provide sufcient power when running CrossFireX™ mode.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2 when using
multiple graphics cards for better thermal environment. See page 2-24 for details.
IRQ assignments for this motherboard
A B C D E F G H
LAN shared – – – – – – –
Marvell 9172 – – shared – – – – –
PCIE x16_1 shared – – – – – – –
PCIE x16_2 shared – – – – – – –
PCIE x1_1 – shared – – – – – –
PCIE x1_2 – – – shared – – – –
Intel PCH SATA Controller – – – shared – – – –
HD Audio – – – – – – shared –
USB 2.0_1 – – – – – – – shared
USB 2.0_2 – – – – – – – shared
USB 3.0 shared – – – – – – –