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Dell PowerEdge R940 3U rack server front view with bezel and drive bays

DELL

DELL PowerEdge R940 3U Rack Server 4x Xeon Gold 5118 2.3GHz 12-Core 256GB DDR4 8x 1.2TB SAS H730P

SKU CH-88N3-JEAYG

A 3U rack server with four 2.3 GHz 12-core Xeon Gold 5118 processors, 256 GB DDR4 ECC memory, eight 1.2 TB SAS drives on a PERC H730P controller, quad-port 1/10 GbE networking.

  • TypeRack
  • Rack Height3U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.30 GHz
  • CPU SocketLGA 3647
  • Four Xeon Gold 5118 processors deliver 48 cores at 2.3 GHz for heavy workloads
  • 256 GB DDR4 2400 MHz registered ECC memory supports large in-memory datasets
  • PERC H730P 2 GB controller enables RAID 0, 1, 5, 6, 10, 50, 60 with battery-backed cache
  • Eight 1.2 TB 10K SAS drives provide high-throughput storage in eight 2.5-inch bays
  • iDRAC 9 Enterprise gives full remote management with dedicated network access

Quad-socket Xeon Gold server

The Dell PowerEdge R940 packs four Xeon Gold 5118 processors running at 2.3 GHz with 12 cores each, delivering 48 threads in a 3U rack chassis. It ships with 256 GB of DDR4 registered ECC memory across eight 32 GB modules and leaves 40 slots open for expansion up to 6 TB. This density targets virtualisation clusters, in-memory databases and analytics workloads that demand high core counts and large memory footprints.

PERC H730P controller and quad-port networking

The integrated PERC H730P with 2 GB cache supports RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through, managing the eight installed 1.2 TB 10K SAS drives. The Intel X520/I350 daughter card adds two 1 GbE and two 10 Gb SFP+ ports for flexible LAN and storage networking. iDRAC 9 Enterprise provides full out-of-band management with virtual console and lifecycle automation.

Tool-less rails and redundant power simplify

Sliding ready rails allow single-person rack mounting without tools, while the bezel snaps on for a clean front. Dual 1600 W platinum hot-swap supplies maintain uptime during maintenance. Installers must populate all four CPU sockets and balance memory across the 48 slots for optimal performance; incorrect DIMM placement is the most common cause of POST delays.

Highlights

  • Four Xeon Gold 5118 processors deliver 48 cores at 2.3 GHz for heavy workloads
  • 256 GB DDR4 2400 MHz registered ECC memory supports large in-memory datasets
  • PERC H730P 2 GB controller enables RAID 0, 1, 5, 6, 10, 50, 60 with battery-backed cache
  • Eight 1.2 TB 10K SAS drives provide high-throughput storage in eight 2.5-inch bays
  • iDRAC 9 Enterprise gives full remote management with dedicated network access

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

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Questions about this item

When will the PERC H730P controller's battery need replacement?

The PERC H730P 2GB controller includes a battery that typically lasts several years; plan to replace it when the iDRAC 9 Enterprise remote management reports a degraded battery status during routine health checks.

What limits sustained compute throughput first on the four Xeon Gold 5118 processors?

With all four 12-core Xeon Gold 5118 CPUs installed at the 4-processor maximum, the 6TB memory ceiling across 48 DDR4 slots becomes the primary bottleneck for memory-intensive workloads before CPU core count does.

How much heat and power do the dual 1600W platinum PSUs produce when the server runs 24/7?

Dual redundant 1600W platinum-efficiency supplies draw only what the 4-socket system demands; under full load they deliver up to 1600W each while platinum efficiency minimises waste heat compared with lower-rated units.

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