PCIe riser board slot definitions
Installing a riser cage in the primary, secondary, or tertiary PCIe connectors determines which PCIe form factor can be supported.
| PCIe slot riser 1 | PCIe slot riser 2 | PCIe slot riser 3 | |
|---|---|---|---|
| Primary Riser Connector with M.2 (Connected to Processor 1) | |||
| 1 - ¾L/FH | PCIe - x8 | ||
| 2 - ¾L/FH | PCIe - x16 | ||
| 3 - ¾L/FH | PCIe - x8 | ||
| Secondary Riser Connector M.2 (Connected to Processor 2) | |||
| 4 - HL/FH | PCIe - x8 | ||
| 5 - HL/FH | PCIe - x16 | ||
| 6 - HL/FH | PCIe - x8 | ||
| Optional Primary Riser Connector (Connected to Processor 1) | |||
| 1 - ¾L/FH | PCIe - x8 | ||
| 2 - ¾L/FH | PCIe - x8 | ||
| 3 - ¾L/FH | PCIe - x8 | ||
| 1 - Slimline | - | ||
| Optional Secondary Riser Connector (Connected to Processor 2) | |||
| 4 - HL/FH | PCIe - x8 | ||
| 5 - HL/FH | PCIe - x8 | ||
| 6 - HL/FH | PCIe - x8 | ||
| 1 - Slimline | - | ||
| Optional Primary Riser - Slots 2 and 3 (Connected to Processor 1) | |||
| 1 - ¾L/FH | - | ||
| 2 - ¾L/FH | PCIe - x16 | ||
| 3 - ¾L/FH | PCIe - x16 | ||
| Optional Secondary Riser - Slots 5 and 6 (Connected to Processor 2) | |||
| 4 - HL/FH | - | ||
| 5 - HL/FH | PCIe - x16 | ||
| 6 - HL/FH | PCIe - x16 | ||
| Optional Tertiary Riser - Slots 7 and 8 (Connected to Processor 2) | |||
| 7 - HL/FH | PCIe - x8 | ||
| 8 - HL/FH | PCIe - x8 | ||
| Optional Tertiary Riser - Slots 7 and 8 (Connected to Processor 2) | |||
| 7 - HL/FH | PCIe - x8 | ||
| 1 - Slimline | - | ||