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Riser 3/4 cage

This section provides cable routing information for the riser 3/4 cage, which provide four low-profile (4LP) PCIe slots.

The following illustration shows the 4LP PCIe riser 3/4 cage. The riser card types vary by server model. For detailed information, see PCIe slots and PCIe adapters.



Power and sideband cable connection​

The following illustration shows the power and sideband connections for x8/x8 PCIe riser card 3 and x8/x8 PCIe riser card 4.

Figure 1. Riser card 3/4 power and sideband cable routing
Riser card 3/4 power and sideband connection

From

To

1 Power connector on the riser cards

1 Riser 3 power connector on the system board assembly

2 Sideband connector on the riser cards

2 Riser 3 sideband connector on the system board assembly

Signal cable connection​

The following illustration shows the signal connections for x8/x8 PCIe riser card 3 and x8/x8 PCIe riser card 4.

Figure 2. Riser card 3/4 signal cable routing
Riser card 3/4 signal connection

From

To

1 Swift connector 1 on riser 3 card

1Onboard: PCIe 9

2 Swift connector 2 on riser 3 card

2Onboard: PCIe 10, 11

3 Swift connector 1 on riser 4 card

3Onboard: PCIe 8

4 Swift connector 2 on riser 4 card

4Onboard: PCIe 6