Riser card cable routing
Follow the instructions in this section to learn how to do cable routing for riser cards.
| Rear riser assembly | With three riser cards | With two riser cards |
| Riser assembly 2 (Processor 1) | Riser assembly 2: x8/x16/x16 | Riser assembly 2: x16/x16 |
| Riser assembly 3 (Processor 2) | Riser assembly 3: x8/x16/x16 | Riser assembly 3: x16/x16 |
Front riser assembly: Riser assembly 6 and Riser assembly 7 | ||
Riser assembly 2: x8/x16/x16 configuration
 | ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 3 | 1 PCIe connector 10 and Power connector 10 | 350 mm |
| 2 Riser card on Slot 4 | 2 PCIe connector 9 and Power connector 9 | 300 mm |
The riser card on the lowest slot connects to the processor board directly, requiring no cable. | ||
Riser assembly 3: x8/x16/x16 configuration
 | ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 6 | 1 PCIe connector 14 and Power connector 14 | 350 mm |
| 2 Riser card on Slot 7 | 2 PCIe connector 13 and Power connector 13 | 300 mm |
Riser assembly 2: x16/x16 configuration
 | ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 3 | 1 PCIe connector 10 and Power connector 11 | 300 mm |
| 2 Riser card on Slot 4 | 2 PCIe connector 9 and Power connector 9 | 300 mm |
The riser card on the lowest slot connects to the processor board directly, requiring no cable. | ||
Riser assembly 3: x16/x16 configuration
| ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 6 | 1 PCIe connector 10 and Power connector 11 | 300 mm |
| 2 Riser card on Slot 7 | 2 PCIe connector 9 and Power connector 9 | 300 mm |
Front riser assembly: x8/x8/x8/x8 configuration
 | ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 16 | 1a Power connector 1 | 550/470 mm |
| 1b PCIe connector 6 | ||
| 2 Riser card on Slot 17 | 2a Power connector 2 | 550/470 mm |
| 2b PCIe connector 5 | ||
| 3 Riser card on Slot 18 | 3a Power connector 12 | 550/1000 mm |
| 3b PCIe connector 8 | ||
| 4 Riser card on Slot 19 | 4a Power connector 23 | 550/1000 mm |
| 4b PCIe connector 7 | ||
| 5 Riser card on Slot 20 | 5a Power connector 3 | 550/470 mm |
| 5b PCIe connector 4 | ||
| 6 Riser card on Slot 21 | 6a Power connector 4 | 550/470 mm |
| 6b PCIe connector 3 | ||
| 7 Riser card on Slot 22 | 7a Power connector 20 | 550/1000 mm |
| 7b PCIe connector 2 | ||
| 8 Riser card on Slot 23 | 8a Power connector 21 | 550/1000 mm |
| 8b PCIe connector 1 | ||
Front riser assembly: x16/x16 configuration
 | ||
| From | To (processor board) | Cable length |
| 1 Riser card on Slot 19 | 1a PCIe connector 7 | 550/450 mm |
| 1b PCIe connector 8 | ||
| 1c Power connector 1 | ||
| 2 Riser card on Slot 17 | 2a PCIe connector 5 | 550/450 mm |
| 2b PCIe connector 6 | ||
| 2c Power connector 2 | ||
| 3 Riser card on Slot 21 | 3a PCIe connector 3 | 550/450 mm |
| 3b PCIe connector 4 | ||
| 3c Power connector 3 | ||
| 4 Riser card on Slot 23 | 4a PCIe connector 1 | 550/450 mm |
| 4b PCIe connector 2 | ||
| 4c Power connector 4 | ||
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