Expansion Slots (Pci Express Slots) - ASROCK Rack C226M WS User Manual

2.6 Expansion Slots (PCI Express Slots)

here are 3 PCI Express slots on Z97M WS / C226M WS motherboard.
here are 2 PCI Express slots on H97M WS motherboard.
PCIE slot:
Z97M WS / C226M WS:
PCIE7 (PCIE 2.0 x4 slot, from Intel® Z97 / C226 chipset) is used for PCI Express x4 lane
width graphics cards.
PCIE4 (PCIE 3.0 x8 slot, from CPU) is used for PCI Express x8 lane width graphics cards.
PCIE6 (PCIE 3.0 x16 slot, from CPU) is used for PCI Express x16 lane width graphics
cards.
Slot
PCIE 7
PCIE 6
PCIE 4
PCI Express Slot Coniguration
H97M WS:
PCIE7 (PCIE 2.0 x4 slot, from Intel® H97 chipset) is used for PCI Express x4 lane width
graphics cards.
PCIE6 (PCIE 3.0 x16 slot, from CPU) is used for PCI Express x16 lane width graphics
cards.
Slot
PCIE 7
PCIE 6
18
Generation Mechnical
2.0 x4
3.0 x16
3.0 x8
Single Graphics Card
Two Graphics Cards
Generation Mechnical
2.0 x4
3.0 x16
Eletrical
x4 Intel® Z97 / C226 chipset
x16
x8
PCIE 6 PCIE 4
x16
x8 x8
Eletrical
x4 Intel® H97 chipset
x16
Source
CPU
CPU
Source
CPU