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Silver 3U rack server front with eight 2.5-inch drive bays and bezel

DELL

DELL PowerEdge R940 3U Rack Server 4x Xeon Gold 5118 2.3GHz 12-Core 768GB DDR4 8x 2.4TB SAS H730P

SKU CH-K493-E2372

Four-socket 3U rack server with 48 cores, 768GB DDR4 ECC memory, eight 2.4TB SAS drives and PERC H730P RAID controller

  • TypeRack
  • Rack Height3U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.30 GHz
  • CPU SocketLGA 3647
  • 4 Xeon Gold 5118 CPUs deliver 48 cores for heavy multi-threaded workloads
  • 768 GB DDR4 registered ECC memory supports large in-memory databases
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • 8 × 2.4 TB 10K SAS drives provide high-capacity low-latency storage
  • Dual 1600 W platinum PSUs plus iDRAC9 Enterprise ensure uptime and remote control

PowerEdge R940 3U Rack Server

The Dell PowerEdge R940 is a 3U rack-mounted server system built for high-density compute. It carries four Intel Xeon Gold 5118 processors, each running at 2.3 GHz with 12 cores. The system ships with 768 GB of DDR4 registered ECC memory across 24 modules and includes a PERC H730P storage controller with battery backup.

Suited for multi-socket workloads.

This configuration targets environments that need maximum core count and memory capacity in a compact rack footprint. Database clusters, virtualisation hosts and in-memory analytics benefit from the four-socket design and large DIMM population. Buyers who need fewer cores, lower memory capacity or a tower form factor should look at smaller platforms.

768 GB DDR4 in 48 slots defines the memory ceiling

The server provides 48 DIMM slots and arrives with 768 GB installed using 32 GB modules. DDR4 is the only supported memory type and registered ECC is required. The chipset supports up to 6 TB total capacity when fully populated with larger modules.

Highlights

  • 4 Xeon Gold 5118 CPUs deliver 48 cores for heavy multi-threaded workloads
  • 768 GB DDR4 registered ECC memory supports large in-memory databases
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • 8 × 2.4 TB 10K SAS drives provide high-capacity low-latency storage
  • Dual 1600 W platinum PSUs plus iDRAC9 Enterprise ensure uptime and remote control

Specifications

BrandDELL
SeriesPowerEdge R940
ModelR940
TypeRack
Rack Height3U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.30 GHz
CPU SocketLGA 3647
Number of CPU Cores12-Core Processor
# of Processors Installed4
MAX Processors4
ChipsetIntel C620
Installed Memory Size768GB
Memory TypeDDR4
Max Memory Capacity6TB
Number of Memory Slots48
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSAS
SSD (Installed)No
Raid LevelRAID 0/1/5/6/10/50/60
GPU TypeMatrox G200
Video Memory8MB
Ethernet ControllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
LAN Ports4 x Ports
Expansion SlotsUp to 13 PCIe Gen 3 Slots, 3x PCIe x8, and 10 x PCIe 3.0 x16 slots
Management PortRJ 45
Operating SystemNo
Features8 x 2.5" SATA/SAS Hot-Plug Drive Bays

Other versions of this model

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Questions about this item

Should I pick the 2.4 TB SAS drives or a different capacity for this R940?

The server arrives with eight 2.4 TB 10K SAS drives and the PERC H730P controller supports RAID 0, 1, 5, 6, 10, 50 and 60, so usable space depends on the RAID level you choose.

What does the 2.3 GHz Xeon Gold 5118 speed mean once the R940 is running workloads?

Each of the four 12-core processors runs at 2.3 GHz base and can turbo to 3.2 GHz, giving 48 total cores for heavily threaded applications.

How does the 12 Gb/s SAS interface on the H730P limit real-world throughput?

The controller and drives both operate at 12 Gb/s SAS, so sustained sequential transfers are capped by that link speed and the 10K drive mechanics.

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