Asus P9D-MH/SAS/10G-DUAL - Manual (Page 39)

ASUS P9D-MH Series 2-19
2.5.4 PCI Express x8 slot (x4 link)
The onboard PCIE 6 (slot 6) provide one x4 Gen3 link from CPU while the onboard PCIE 5
(slot 5) provide one x4 Gen2 link from Intel
® C224 PCH.
2.5.6 PCI Express x1 slot (x1 link)
The onboard PCIE 4 (slot 4) provide one x1 Gen2 link to the Intel ® C224 PCH.
No.(Slot location) Short Description
3 (slot 4) PCIE4 1 x PCI-E x1 (x1 Gen 2 link)
2 (slot 5) PCIE5 1 x PCI-E x8 (x4 Gen2 link)
1 (slot 6) PCIE6 1 x PCI-E x8 (x4 Gen3 link)