Asus Rampage IV Formula - Manual (Page 36)

2-12 Chapter 2: Hardware information
Chapter 2
2.2.4 Expansion slots
Ensure to unplug the power cord before adding or removing expansion cards. Failure to do
so may cause you physical injury and damage motherboard components.
Slot No. Slot Description
1 PCIe 3.0 x16_1 slot
2 PCIe 3.0 x8_2 slot
3 PCIe 2.0 x1_1 slot
4 PCIe 3.0 x16/8_3 slot
5 PCIe 2.0 x1_2 slot
6 PCIe 3.0 x8_4 slot
• Refer to the following configuration table for installation.
PCIe x16
Slot #
Single
VGA
SLI/CF
3-way
SLI/CFX
Quad
SLI/CFX
1 x16 x16 x16 x16
2 — — x8 x8
4 — x16 x16 x8
6 — — — x8
• We recommend that you provide sufficient power when running
CrossFireX™ or SLI mode. See page 2-34 for details.
• While running at heavy loaded four VGA cards, ensure to plug in the 6-pin extra PCIe
power supply for stability.
• Connect a chassis fan to the motherboard connector labeled CHA_FAN1/2/3 when
using multiple graphics cards for better thermal environment.