1-22 Chapter 1: Product introduction
• In single VGA card mode, use the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16
graphics card to get better performance.
• We recommend that you provide sufcient power when running CrossFireX™ mode.
See page 1-27 for details.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN when using
multiple graphics cards for better thermal environment.
VGA conguration PCI Express operating mode
PCIe x16_1 PCIe x16_2
Single VGA/PCIe card x16 (Recommended for single VGA card) N/A
Dual VGA/PCIe card x16 x4
1.6.5 PCI Express x16 slots

This motherboard supports two PCI Express x16 graphics cards that comply with the PCI

Express specications.

IRQ assignments for this motherboard

A B C D E F G H
PCIe x16_1 - - shared - - - - -
PCIe x16_2 shared - - - - - - -
PCIe x1_1 shared - - - - - - -
PCI 1 - - - - shared - - -
Realtek 8111F (LAN) - shared - - - - - -
On Chip SATA - - - shared - - - -
On Chip USB OHCI 1/2/3/4 - - shared - - - - -
On Chip USB EHCI 1/2/3 - -shared - - - - - -
On Chip USB XHCI 1 - - shared - - - - -
On Chip USB XHCI 2 - shared - - - - - -
HD Audio shared - - - - - - -