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Dell PowerEdge R940

The Dell PowerEdge R940 is a 3U four-socket rack server for mission-critical databases, ERP and in-memory analytics. It runs up to four 2nd Gen Intel Xeon Scalable processors with up to 28 cores each, 48 DDR4 DIMM slots for up to 6TB at 2933 MT/s (plus NVDIMM support), and up to 24x 2.5" drives with up to 12 NVMe. Up to 13 PCIe Gen3 slots, rNDC networking, eight hot-plug fans, redundant power up to 2400W and iDRAC9 keep it running. Fully configurable.

Looking to compare generations? See its Gen 16 successor, the Dell PowerEdge R960, or compare Gen 14 models: Dell PowerEdge R840 and Dell PowerEdge R740xd.

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  • Form Factor: 3U Rack
  • Processors: Up to 4x 2nd Gen Intel Xeon Scalable (up to 28 cores)
  • Memory: 48x DDR4 DIMM slots, up to 6TB
  • Memory Speed: Up to 2933 MT/s
  • Storage: Up to 24x 2.5" (up to 12 NVMe)
  • Expansion: Up to 13x PCIe Gen3 slots
  • GPU Support: Not listed by Dell
  • Networking: rNDC: 4x 1GbE, 4x 10GbE or 2x 25GbE
  • Management: iDRAC9 with Lifecycle Controller
  • Cooling: Air, 8 hot-plug fans
  • Power: Redundant PSUs, 1100W to 2400W

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Dell PowerEdge R940 vs R960: Specs & Key Differences

Feature PowerEdge R940 PowerEdge R960
Processors Up to 4x 2nd Gen Intel Xeon Scalable (up to 28 cores) Up to 4x 4th Gen Intel Xeon Scalable
Memory 48x DDR4 DIMM slots, up to 6TB 64x DDR5 DIMM slots, up to 16TB
Memory Speed Up to 2933 MT/s Up to 4800 MT/s
Storage Up to 24x 2.5" (up to 12 NVMe) Up to 32x 2.5" (up to 24x NVMe)
PCIe Up to 13x PCIe Gen3 Up to 12x PCIe Gen5
GPU Support Not listed by Dell Up to 4x 400W double-width
Networking rNDC: 4x 1GbE, 4x 10GbE or 2x 25GbE Optional 2x 1GbE LOM, 1x OCP 3.0
Power 1100W to 2400W 1100W to 2800W
Form Factor 3U Rack 4U Rack

Frequently Asked Questions

Up to four 1st or 2nd Gen Intel Xeon Scalable processors with up to 28 cores each. A special two-socket layout gives extra UPI bandwidth for software-defined storage.

Forty-eight DDR4 DIMM sockets support up to 6TB of registered ECC memory at up to 2933 MT/s, and up to 12 of them can be NVDIMMs (384GB max).

Up to twenty-four 2.5-inch SAS/SATA drives with up to 12 NVMe SSDs, plus M.2 boot SSDs on BOSS, using PERC H330 or H740P. Please specify your capacity needs when you submit your quote configuration.

It offers up to 13 PCIe Gen3 slots (ten x16 and three x8) and a network daughter card with 1GbE, 10GbE or 25GbE ports.

The Gen 16 R960 moves to 4th Gen Xeon Scalable, DDR5-4800 with up to 16TB, PCIe Gen5, up to 24 NVMe drives and GPU support in a 4U chassis. The R940 packs four sockets into a shorter 3U and offers more PCIe slots.

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