Dell PowerEdge R740 Installation and Service Manual
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 R740 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:
| 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 (No riser) | No PCIe slots (only rear storage) | N/A | N/A | N/A | N/A | N/A | N/A |
| Riser configuration 1 (1B+2 B) | Four x8 slots | 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 (1B+2C) | Three x8 and one x16 slots | 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 |
| 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 |
| 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.
|
| 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.
|
| Nvidia A2 | 1,8,4,7,2,5 | 1D+2E+3B | 6 |
| Nvidia A10 | 1, 8, 4 | 1D+2E+3B | 3 |
| Nvidia A16, A30, A40, A100, A800 | 1, 8, 4 | 1A+2E+3B | 3 |
| ACLR | 1, 8, 4 | 1A+2A+3A | 3 |
| 1, 8, 4 | 1D+2A+3A | 3 | |
| PCIe Bridge | 1, 4, 8 | 1D+2A+3A | 3 |
| Internal storage adapter | 6, 5 | all | 1 |
| 200 G NIC | 1 | 1A+2A+3A | 1 |
| 1 | 1D+2A+3A | 1 | |
| HCA EDR | 1, 8, 4, 3 | 1A+2A+3A | 4 |
| 8, 4 | 1B+2A+3A | 2 | |
| 1, 8 | 1D+2A+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 | |
| 100 G OPA | 1, 8, 4, 3 | 1A+2A+3A | 4 |
| 8, 4 | 1B+2A+3A | 2 | |
| 1,8, 4 | 1D+2A+3A | 3 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 1,5,4,7,8,2,3 for Qlogic | 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | |
| BOSS LP | 6 | All | 1 |
NOTE:H750/H350 and HBA350i cards cannot be mixed with H730P, H740P, HBA330, H330 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 configurations that support GPU, maximum four single-wide and two double-wide GPUs are supported when NVDIMM-Ns with NVDIMM-N battery are installed. Since NVDIMM-N battery is installed on the GPU shroud, GPUs are not supported on riser 2.
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