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Silver 3U rack server with front bezel and drive bays

DELL

DELL PowerEdge R940 3U rack server 4x Xeon Gold 5118 2.3GHz 12-core 256GB DDR4

SKU CH-W25C-C8P7Y

A 3U rack server with four 12-core Xeon Gold 5118 processors at 2.3 GHz, 256 GB DDR4, H730P RAID, dual 10 GbE SFP+ ports and redundant 1600 W power supplies

  • TypeRack
  • Rack Height3U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.30 GHz
  • CPU SocketLGA 3647
  • 4 processors with 12 cores each at 2.3 GHz deliver high parallel throughput
  • 256 GB DDR4 ECC memory across 8 modules supports large in-memory workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with 2 GB cache
  • Dual 10 Gb SFP+ and dual 1 GbE ports provide flexible network connectivity
  • iDRAC9 Enterprise gives full remote management with dedicated hardware

Mission-critical 4-socket server

The Dell PowerEdge R940 is a 3U rack server built around four Intel Xeon Gold 5118 processors, each running at 2.3 GHz with 12 cores. It ships with 256 GB of DDR4 registered ECC memory across eight 32 GB modules and includes a PERC H730P storage controller with 2 GB cache. Dual 1600 W platinum power supplies, iDRAC9 Enterprise, quad-port networking and rails complete the package.

Ideal for dense database and virtualisation hosts

Organisations running large in-memory databases, heavy virtualisation clusters or real-time analytics will benefit from the 48 memory slots supporting up to 6 TB of DDR4 and the four-socket scaling in only 3U of rack space. Buyers who require GPU compute trays, more than four processor sockets or a tower form factor should consider other platforms.

48 DDR4 slots define maximum capacity

The system provides 48 DIMM slots populated with eight 32 GB modules today, leaving 40 slots open for future expansion to the 6 TB ceiling. This slot count is the single figure that determines how far the memory subsystem can grow without replacing the chassis.

Highlights

  • 4 processors with 12 cores each at 2.3 GHz deliver high parallel throughput
  • 256 GB DDR4 ECC memory across 8 modules supports large in-memory workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with 2 GB cache
  • Dual 10 Gb SFP+ and dual 1 GbE ports provide flexible network connectivity
  • iDRAC9 Enterprise gives full remote management with dedicated hardware

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 Size256GB
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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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I choose the 256 GB configuration or plan to fill the 48 DIMM slots for the 6 TB maximum?

The system ships with 256 GB across 8 modules, leaving 40 slots free. Add DDR4 registered ECC modules in matched sets to scale toward the 6 TB limit.

What does the 2.3 GHz base clock mean when all four Xeon Gold 5118 processors are under load?

Each of the 48 cores runs at 2.3 GHz base and can turbo to 3.2 GHz depending on thermal headroom and core count active.

How does the PERC H730P 12 Gb/s SAS controller limit the installed 300 GB 10K drives?

The controller supports SAS at 12 Gb/s, so the 10K drives operate at their full interface speed for RAID 0, 1, 5, 6, 10, 50 or 60.

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