* Slot 4, 5,10 and 11 are only available with a riser card.
** Slot 3 and 9 are only for a riser card.
5* PCIe Gen 3 1 x8 (mech.x8) FL
FH, only available with riser
D3274
6 not available
7 PCIe Gen 3 2 x8 (mech.x8) HL only LP
8 PCIe Gen 3 2 x16 (mech.x16) HL only LP
9** PCIe Gen 3 2 x16 (mech.x16) HL only LP, riser slot
10* PCIe Gen 3 2
x16 (mech.x16) FL full height (FH), with D3264
x8 (mech.x8) FL FH, with D3274
11* PCIe Gen 3 2 x8 (mech.x8) FL
FH, only available with riser
D3274
PCI
slot
Type CPU Type length Function