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2-20 Chapter 2: Hardware information
Chapter 2
• In single VGA card mode, use rst the PCIe 2.0 x16_1 slot (blue) or PCIe 2.0 x16_2
slot (blue) for a PCI Express x16 graphics card to get better performance.
• In CrossFireX™ mode, use the PCIe 2.0 x16_1 (blue) and PCIe 2.0 x16_2 (blue) slots
for PCI Express x16 graphics cards to get better performance.
• Use the three PCIe 2.0 x16 slots for Triple CrossFireX™ mode.
• We recommend that you provide sufcient power when running CrossFireX™ mode.
See page 2-33 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 2-32 for
details.
VGA conguration
PCI Express operating mode
PCIe x16_1 PCIe x16_2 PCIe x16_3
Single VGA/PCIe card
x16 (Recommend
for single VGA)
x16 (PCIe card) x4 (PCIe card)
Dual VGA/PCIe card
x16 x16 x4
Triple VGA/PCIe card
x16 x16 x4