Skip to main content
Sign Out

Welcome to Dell

My Account
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Enjoy members-only rewards and discounts
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.
Sign In Create an Account Dell Financial Services Premier Sign In Partner Program Sign In
Contact Us

Your Dell.com Carts

Dell EMC PowerEdge R740 Installation and Service Manual

PDF

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:

Table 1. Expansion card riser specificationsThis table provides information about the expansion card riser configuration for PowerEdge R740 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 (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
Table 2. Riser configurations with 4 PCIe slots [Riser configuration 1 (1B+2B) and Riser configuration 2 (1B+2C)], and Riser configuration 3 (1A+2A)The table below describes the riser configurations with 4 PCIe slots [Riser configuration 1Riser configuration 3 (1A+2A), (1B+2B), and Riser configuration 2 (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), Riser configuration 15 (1A+2E+3B), and Riser Configuration 16 (1D+2A+3A)]The table below describes the riser configurations with greater than 4 PCIe slots:
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
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.

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\