Asus P9D-M Series - PCI Express X16 Slot (X8 Link); PCI Express X8 Slot (X4 Link)

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Chapter 2: Hardware information
2.5.4 PCI Express x16 slot (x8 link)
The onboard PCIE 6 provides one x16 Gen3 link to CPU1. This slot supports VGA
cards and various server class high performance add-on cards.
2.5.5 PCI Express x8 slot (x4 link)
The onboard PCIE 5 and the PCIE 7 provides one x4 Gen3 link to CPU1. The
onboard PCIE 4 provides one x4 Gen2 link to CPU1. These slots support VGA
cards and various server class high performance add-on cards.
No.(Slot location) Short Description
1 PCIE4
1 x PCI-E x8 (x4 Gen 2 link)
2 PCIE5
1 x PCI-E x8 (x4 Gen 3 link)
3 PCIE6
1 x PCI-E x16 (x8 Gen 3 link)
4 PCIE7
1 x PCI-E x8 (x4 Gen 3 link)