VGA configurationPCI Express operating mode
PCIe x16_1

 

PCIe x16_2

 

 

Single VGA/PCIe card

x16 (Recommend for

 

x4 (PCIe card)

 

single VGA)

 

 

 

 

Dual VGA/PCIe card

x16

 

x4

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 sufficient power when running CrossFireX™ mode.

See page 2-38 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 2-37 for details.

Chapter 2

ASUS P7P55D

2-23