Expansion Slots - Asus X99-S User Manual

1.2.5

Expansion slots

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.
40-LANE
1 PCIe 3.0/2.0 x16_1 slot
2 PCIe 2.0 x4_1 slot
3 PCIe 3.0/2.0 x16_2 slot
4 PCIe 3.0/2.0 x16_3 slot
5 PCIe 3.0/2.0 x16_4 slot
6 PCIe 3.0/2.0 x16_5 slot
If you install x8 or x16 devices to the PCIe 2.0 x4_1 slot, ensure to adjust its bandwidth in
BIOS. Refer to Chapter 3 for more information.
1-12
Slot Description
28-LANE
PCIe 3.0/2.0 x16_1 slot
PCIe 2.0 x4_1 slot
PCIe 3.0/2.0 x16_2 slot
PCIe 2.0 x16_3 slot
PCIe 3.0/2.0 x16_4 slot
PCIe 2.0 x16_5 slot
Chapter 1: Product introduction