Non-hot-plug PCIe riser board slot definitions

• Primary riser cage connector, connected to processor 1 or the Southbridge

  Slot	PCIe 3-slot riser cage*	PCIe 2-slot x16 riser cage
  1 - HL/FH	PCIe3 x16 (8, 4, 2, 1)	—
  2 - HL/FH	PCIe3 x16 (8, 4, 2, 1)	PCIe3 x16 (16, 8, 4, 2, 1)
  3 - HL/FH	PCIe3 x8 (8, 4, 2, 1)	PCIe3 x8 (8, 4, 2, 1)

• Secondary riser cage connector, connected to processor 2 (Processor 2 must be installed)

  Slot	PCIe 3-slot riser cage*	PCIe 2-slot x16 riser cage
  4 - HL/FH	PCIe3 x16 (16, 8, 4, 2, 1)	—
  5 - HL/FH	PCIe3 x16 (8, 4, 2, 1)	—
  6 - HL/FH	PCIe3 x8 (8, 4, 2, 1)	—

• Third slot connector, connected to processor 2 (Processor 2 must be installed)

  Slot	PCIe slot
  7 - HL/LP	PCIe3 x16 (8, 4, 2, 1)

  *Depending on the server model, the server might ship with one or two riser cages installed.

  Notes:

  "Primary" denotes that the riser cage is installed in the primary riser connector.

  "Secondary" denotes that the riser cage is installed in the secondary riser connector.

  Installing the riser cages listed in the table above in either the primary or secondary riser connectors determines the form factor of the PCIe cards supported by those riser cages.

  FL/FH denotes full-length, full-height. HL/FH denotes half-length, full-height. LP denotes low profile.

  The PCIe 2-slot x16 riser cage supports a maximum power of 150 W with a power cable. This cable must be used for PCIe card wattages greater than 75 W.