NVMe Retimer adapter configurations

This section provides cable routing information for the server model with NVMe Retimer adapters

This server supports the following four configurations of NVMe Retimer adapters.

• Configuration 1: one NVMe Retimer adapter on the rear backplane

• Configuration 2: two NVMe Retimer adapters on the front backplane

• Configuration 3: three NVMe Retimer adapters, one on the rear backplane, two on the front backplane

• Configuration 4: one NVMe Retimer adapter on the rear backplane and one 1611-8P NVMe switch card

Configuration 1: one NVMe Retimer adapter on the rear backplane

Figure 1. Cable routing for configuration with one NVMe Retimer adapter on the rear backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter in PCIe slot 4

Configuration 2: two NVMe Retimer adapters on the front backplane

Figure 2. Cable routing for configuration with two NVMe Retimer adapters on the front backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the front backplane 3	Connector C0 on the retimer adapter 1 in PCIe slot 5
	NVMe 2-3 connector on the front backplane 3	Connector C1 on the retimer adapter 1 in PCIe slot 5
2 NVMe signal cable	NVMe 4-5 connector on the front backplane 3	Connector C0 on the retimer adapter 2 in PCIe slot 1
	NVMe 6-7 connector on the front backplane 3	Connector C1 on the retimer adapter 2 in PCIe slot 1

Configuration 3: three NVMe Retimer adapters, one on the rear backplane, two on the front backplane

Figure 3. Cable routing for configuration with three NVMe Retimer adapters, one on the rear backplane, two on the front backplane

Cable	From	To
1 NVMe signal cable	NVMe 0-1 connector on the front backplane 3	Connector C0 on the retimer adapter 1 in PCIe slot 5
	NVMe 2-3 connector on the front backplane 3	Connector C1 on the retimer adapter 1 in PCIe slot 5
2 NVMe signal cable	NVMe 4-5 connector on the front backplane 3	Connector C0 on the retimer adapter 2 in PCIe slot 1
	NVMe 6-7 connector on the front backplane 3	Connector C1 on the retimer adapter 2 in PCIe slot 1
3 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter 3 in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter 3 in PCIe slot 4

Configuration 4: one NVMe Retimer adapter on the rear backplane and one 1611-8P NVMe switch card

Figure 4. Cable routing for configuration with one NVMe Retimer adapter on the rear backplane and one 1611-8P NVMe switch card

1 NVMe signal cable	NVMe 0-1 connector on the rear backplane	Connector C0 on the retimer adapter in PCIe slot 4
	NVMe 2-3 connector on the rear backplane	Connector C1 on the retimer adapter in PCIe slot 4
2 NVMe signal cable	NVMe 0-1 and 2-3 connectors on the front backplane 3	Connectors C0 and C1 on the NVMe switch card in PCIe slot 1
	NVMe 4-5 and 6-7 connectors on the front backplane 3	Connectors C2 and C3 on the NVMe switch card in PCIe slot 1