User guide
ASUS P7P55D-E 2-23
Chapter 2
VGA conguration
PCI Express operating mode
PCIe x16_1 PCIe x16_2
Single VGA/PCIe card
x16
(Recommend for single VGA)
x4 (PCIe card)
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 sufcient power when running CrossFireX™ mode.
See page 2-39 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.