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Dell EMC PowerEdge R740xd Installation and Service Manual

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Expansion card installation guidelines

NOTE:A System Event Log (SEL) event is logged if an expansion card riser is not supported or missing. It does not prevent your system from turning on. However, if a F1/F2 pause occurs and an error message is displayed.

The PowerEdge R740xd system supports up to eight PCI express (PCIe) generation 3 expansion cards, that can be installed on the system board using expansion card risers. The following table provides detailed information about the expansion card riser specifications:

Table 1. Expansion card riser specificationsThis table provides information about the expansion card riser configuration for PowerEdge R740xd system.
Riser configuration and supported risers Slot description PCIe slots on riser 1 (Height and length) Processor connection PCIe slots on riser 2 (Height and length) Processor connection PCIe slots on riser 3 (Height and length) Processor connection
Riser configuration 0 with or without rear storage (No riser) No PCIe slots (only rear storage) N/A N/A N/A N/A N/A N/A
Riser configuration 1 with or without rear storage (1B+2 B) Four x8 slots and rear storage Slot 1: x8 full-height, full length Processor 1 Slot 4: x8 low profile, half length Processor 1 N/A N/A
Slot 2: x8 full-height, full length Processor 1
Slot 3: x8 full-height, half length Processor 1
Riser configuration 2 with or without rear storage (1B+2C) Three x8 and one x16 slots and rear storage Slot 1: x8 full-height, full length Processor 1 Slot 4: x16 low profile, half length Processor 2 N/A N/A
Slot 2: x8 full-height, full length Processor 1
Slot 3: x8 full-height, half length Processor 1
Riser configuration 3 (1A+2A) Two x8 and three x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 N/A N/A
N/A N/A Slot 5: x8 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 4 (1A+2A+3A) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 15 (1A+2E+3B) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 5 (1B+2A+3A) Six x8 and two x16 slots Slot 1: x8 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 6 (1D+2A+3A) Five x8 and three x16 slots Slot1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 16 (1D+2E+3B) Five x8 and three x16 slots Slot1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
Slot 2: x8 full-height, full length Processor 1 Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x8 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Riser configuration 9 (1A+2D+3A) or Riser configuration 17 (1A+2F+3B) Three x8 and four x16 slots Slot 1: x16 full-height, full length Processor 1 Slot 4: x16 full-height, full length Processor 2 Slot 7: x8 full-height, full length Processor 2
N/A N/A Slot 5: x8 full-height, full length Processor 2 Slot 8: x16 full-height, full length Processor 2
Slot 3: x16 full-height, half length Processor 1 Slot 6: x8 low profile, half length Processor 1
Table 2. Riser configurations with 4 PCIe slots [Riser configuration 1 with or without rear storage (1B+2B) and Riser configuration 2 with or without rear storage (1B+2C)], and Riser configuration 3 with or without rear storage(1A+2A)The table below describes the riser configurations with 4 PCIe slots [Riser configuration 1 with or without rear storageRiser configuration 3 (1A+2A), (1B+2B), and Riser configuration 2 with or without rear storage (1B+2C)]:
Card Type Slot priority Maximum number of cards
GPU (double width) N/A N/A
GPU (single width) N/A N/A
PCIe Bridge 4 (config 2) or N/A (config 1 or 3) 1 or 0
Internal storage adapter 6,5 (config 3) or 4, 3 (Config 1 or 2) 1 or 2
HCA EDR 1,4,3 (config 3) or N/A (config 1 or 2) 3 or 0
100 GB NIC 1,4,3 (config 3) or N/A (config 1 or 2) 3 or 0
100 G OPA 1,4,3 (config 3) or N/A (config 1 or 2) 3 or 0
HCA FDR 4 (config 1 or 2) or 6 (config 3) 1
40 GB NIC 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
40 GB NIC 4 (config 1 or 2) or 6 (config 3) 1
HBA FC32 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
HBA FC32 4 (config 1 or 2) or 6 (config 3) 1
25 GB NIC 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
25 GB NIC 4 (config 1 or 2) or 6 (config 3) 1
HBA FC16 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
HBA FC16 4 (config 1 or 2) or 6 (config 3) 1
10 GB NIC 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
10 GB NIC 4 (config 1 or 2) or 6 (config 3) 1
HBA FC8 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
HBA FC8 4 (config 1 or 2) or 6 (config 3) 1
1 GB NIC 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
1 GB NIC 4 (config 1 or 2) or 6 (config 3) 1
External storage adapter 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 3
External storage adapter 4 (config 1 or 2) or 6 (config 3) 1
BOSS 1, 2, 3 (c1/c2) or 5, 1, 4, 3 (config 3) 1
BOSS 4 (config 1 or 2) or 6 (config 3) 1
ACLR (Full Height DW) NA 0
Table 3. Riser configurations with greater than 4 PCIe slots [Riser configuration 3 (1A+2A), 4 (1A+2A+3A), Riser configuration 5 (1B+2A+3A), Riser configuration 6 (1D+2A+3A) and Riser configuration 9 (1A+2D+3A), Riser configuration 15 (1A+2E+3B), Riser Configuration 16 (1D+2A+3A), and Riser configuration 17 (1A+2F+3B)]The table below describes the riser configurations with greater than 4 PCIe slots [Riser configuration 3 (1A+2A), 4 (1A+2A+3A), Riser configuration 5 (1B+2A+3A), Riser configuration 6 (1D+2A+3A), and Riser configuration 9 (1A+2D+3A)]:
Card Type Slot priority Configuration Maximum number of cards
GPU (double width) 1, 8, 4 1A+2A+3A 3
NOTE:Does not support double width Nvidia A-Series GPUs.
1,8 1A+2D+3A 2
NOTE:Does not support double width Nvidia A-Series GPUs.
GPU (single width) 1, 8, 4 1D+2A+3A 3
NOTE:Factory install maximum of 3 x GPU cards in slots 1, 8, 4 with x16 max PCIe width. Customers can order 3 additional Custom Kits and install in the order of slots 7, 2, 5, however slots are limited to x8 max PCIe width. This does not apply to the NVIDIA A10 due to reduced performance in x8 slots.
1, 8 1A+2D+3A 2
Nvidia A2 1,8,4,7,2,5 1D+2E+3B 6
1,8 1A+2F+3B 2
Nvidia A10 1, 8, 4 1D+2E+3B 3
1, 8 1A+2F+3B 2
Nvidia A16, A30, A40, A100, A800 1, 8, 4 1A+2E+3B 3
1, 8 1A+2F+3B 2
ACLR 1, 8, 4 1A+2A+3A 3
1, 8, 4 1D+2A+3A 3
1, 8 1A+2D+3A 2
PCIe Bridge 1, 4, 8 1D+2A+3A 3
3, 4 1A+2D+3A 2
Internal storage adapter 6, 5 all 1
200 G NIC 1 1A+2A+3A 1
1 1D+2A+3A 1
1 1A+2D+3A 1
HCA EDR 1, 8, 4, 3 1A+2A+3A 4
8, 4 1B+2A+3A 2
1, 8 1D+2A+3A 2
1, 8 1A+2D+3A 2
100 G NIC 1, 8, 4, 3 1A+2A+3A 4
8, 4 1B+2A+3A 2
1, 8, 4 1D+2A+3A 3
1, 8 1A+2D+3A 2
100 G OPA 1, 8, 4, 3 1A+2A+3A 4
8, 4 1B+2A+3A 2
1,8 1D+2A+3A 2
1,8 1A+2D+3A 2
HCA FDR 6 All 1
40 G NIC 7, 5, 1, 8, 4, 3 for other supplier 1A+2A+3A 6
1, 8, 4, 3, 7, 5 for Mellanox 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 for other supplier 1B+2A+3A 7
8, 4, 1, 7, 2, 3, 5 for Mellanox 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 for other supplier 1D+2A+3A 7
1, 8, 4, 7, 2, 3, 5 for Mellanox 1D+2A+3A 7
7, 5, 1, 8 for other supplier 1A+2D+3A 4
1, 8, 7, 5 for Mellanox 1A+2D+3A 4
40 G NIC LP 6 All 1
HBA FC32 7, 5, 1, 8, 4, 3 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 1D+2A+3A 7
7, 5, 1, 8, 6 1A+2D+3A 4
HBA FC32 LP 6 All 1
25 G NIC 7, 5, 1, 8, 4, 3 for other supplier 1A+2A+3A 6
1, 8, 4, 3, 7, 5 for Mellanox 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 for other supplier 1B+2A+3A 7
8, 4, 1, 7, 2, 3, 5 for Mellanox 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 for other supplier 1D+2A+3A 7
1, 8, 4, 7, 2, 3, 5 for Mellanox 1D+2A+3A 7
7, 5, 1, 8 for other supplier 1A+2D+3A 4
1, 8, 7, 5 for Mellanox 1A+2D+3A 4
25 G NIC LP 6 All 1
HBA FC16 7, 5, 1, 8, 4, 3 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 1D+2A+3A 7
7, 5, 1, 8 1A+2D+3A 4
HBA FC16 LP 6 All 1
10 G NIC 7, 5, 1, 8, 4, 3 for other supplier 1A+2A+3A 6
1, 8, 4, 3, 7, 5 for Mellanox 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 for other supplier 1B+2A+3A 7
8, 4, 1, 7, 2, 3, 5 for Mellanox 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 for other supplier 1D+2A+3A 7
1, 8, 4, 7, 2, 3, 5 for Mellanox 1D+2A+3A 7
7, 5, 1, 8 for other supplier 1A+2D+3A 4
1, 8, 7, 5 1A+2D+3A 4
10 G NIC LP 6 All 1
HBA FC8 7, 5, 1, 8, 4, 3 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 1D+2A+3A 7
7, 5, 1, 8 1A+2D+3A 4
HBA FC8 LP 6 All 1
1 G NIC 7, 5, 1, 8, 4, 3 1A+2A+3A 6
1, 7, 2, 3, 5, 8, 4 1B+2A+3A 7
7, 2, 3, 5, 1, 8, 4 1D+2A+3A 7
7, 5, 1, 8 1A+2D+3A 4
1 G NIC LP 6 All 1
External storage adapter 1, 8, 4, 3, 7, 5 1A+2A+3A 2
1, 2, 3, 8, 4, 7, 5 1B+2A+3A 2
2, 3, 1, 8, 4, 7, 5 1D+2A+3A 2
1, 8, 7, 5 1A+2D+3A 2
External storage adapter LP 6 All 1
Express Flash NVMe PCIe SSD adapter 7, 5, 1, 8, 4, 3, 6 1A+2A+3A 6
1, 6 for P4800X 1A+2A+3A 2
1, 7, 2, 3, 5, 8, 4, 6 1B+2A+3A 6
1, 2, 6 for P4800X 1B+2A+3A 3
7, 2, 3, 5, 1, 8, 4, 6 1D+2A+3A 6
1, 6 for P4800X 1D+2A+3A 2
7, 5, 1, 8, 6 1A+2D+3A 5
BOSS 7, 5, 1, 8, 4, 3 1A+2A+3A 1
1, 7, 2, 3, 5, 8, 4 1B+2A+3A 1
7, 2, 3, 5, 1, 8, 4 1D+2A+3A 1
7, 5, 1, 8 1A+2D+3A 1
BOSS LP 6 All 1
NOTE:H750 and HBA350i cards cannot be mixed with H730P, H740P, HBA330 or 12G SAS cards.
NOTE:For information about slot form factor, see the Expansion card riser configurations table.
NOTE:The expansion card slots are not hot-swappable.
NOTE:Riser configuration 9 supports both double width GPUs and single width GPUs. Double width GPUs are supported only on riser configuration 4, and single width GPUs are supported only on riser configuration 6.
NOTE:Ensure that x16 cards are installed only in x16 slots. Depending on the riser configuration slots 2, 7, or 8 may not be available.
NOTE:Only half length PCIe cards are supported on riser 2 when NVDIMM-Ns with NVDIMM-N battery are installed on the air shroud.
NOTE:For 24x2.5 inch 24 NVMe drive configuration, the PCIe bridge cards must be installed in slots 3 and 4.

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