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| PCIe Express operating mode | ||
VGA configuration |
| PCIe 3.0/2.0 x16_1 |
| PCIe 2.0 x16_2 |
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Single VGA/PCIe card |
| x16 (single VGA recommended) |
| N/A |
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Dual VGA/PCIe card |
| x16 |
| x4 |
•In single VGA card mode, use the PCIe 3.0/2.0 x16_1 slot (gray) for a PCI Express
x16 graphics card to get better performance.
•We recommend that you provide sufficient 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.
IRQ assignments for this motherboard
| A | B | C | D | E | F | G | H |
PCIe x16_1 | shared | – | – | – | – | – | – | – |
PCIe x16_2 | shared | – | – | – | – | – | – | – |
PCI1 | – | – | – | shared | – | – | – | – |
PCI2 | shared | – | – | – | – | – | – | – |
Intel SATA Controller | – | – | – | shared | – | – | – | – |
Intel LAN | – | – | – | – | shared | – | – | – |
Intel xHCI | – | – | – | – | – | shared | – | – |
Intel EHCI 1 | – | – | – | – | – | – | – | shared |
Intel EHCI 2 | shared | – | – | – | – | – | – | – |
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HD Audio | – | – | – | – | – | – | shared | – |
1 Chapter
Chapter 1: Product introduction |