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Silver 3U rack server with front bezel, eight 2.5-inch drive bays and redundant power supplies

DELL

DELL PowerEdge R940 3U Rack Server 4x Xeon Gold 6148 2.4GHz 20-Core 256GB DDR4 8x 2.4TB SAS H730P

SKU CH-NDJ1-P7T92

Four-socket 3U rack server with four 20-core Xeon Gold 6148 processors, 256 GB DDR4 ECC memory, eight 2.4 TB SAS drives on a PERC H730P controller, quad-port 1 GbE and 10 GbE networking.

  • TypeRack
  • Rack Height3U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647

Installed Memory Size 256GB

HDD 8 x 2.4TB 10K SAS

CPU Model Gold 6148

Struck-through versions exist but are not stocked here.

  • 4x Xeon Gold 6148 20-core CPUs deliver high multi-thread throughput
  • 256GB DDR4 2666MHz ECC memory supports large in-memory workloads
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • 8x 2.4TB 10K SAS drives provide fast high-capacity storage
  • Dual 1600W platinum PSUs plus iDRAC9 Enterprise ensure resilient remote management

Mission-critical 4-socket 3U server

The Dell PowerEdge R940 is a 3U rackmount server system equipped with four Intel Xeon Gold 6148 processors, each running at 2.40 GHz with 20 cores and a 3.7 GHz turbo frequency. It ships with 256 GB of DDR4 2666 MHz registered ECC memory across 48 slots and supports up to 6 TB total capacity. The platform includes a Dell PERC H730P 2 GB SAS controller, eight 2.4 TB 10K SAS drives, quad-port networking with 2x 1 GbE and 2x 10 Gb SFP+, iDRAC9 Enterprise, and dual 1600 W redundant power supplies.

Suited for dense database

This configuration targets organisations that need maximum core density and memory bandwidth in a 3U footprint for in-memory databases, large-scale virtualisation or real-time analytics. The four-socket design and 48 DIMM slots provide headroom for growth. Buyers who need more than four processors, GPU acceleration, a tower form factor or a different drive interface should evaluate alternative platforms.

PERC H730P controller with eight 2.4 TB SAS drives

The storage subsystem centres on the Dell PERC H730P 2 GB 12 Gb/s controller, which supports RAID 0, 1, 5, 6, 10, 50, 60 and pass-through modes with battery-backed cache. Eight 2.5-inch 2.4 TB 10K SAS hard drives are installed in the 8-bay chassis, delivering high-throughput rotational storage for transaction-heavy applications.

Highlights

  • 4x Xeon Gold 6148 20-core CPUs deliver high multi-thread throughput
  • 256GB DDR4 2666MHz ECC memory supports large in-memory workloads
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • 8x 2.4TB 10K SAS drives provide fast high-capacity storage
  • Dual 1600W platinum PSUs plus iDRAC9 Enterprise ensure resilient remote management

Specifications

BrandDELL
SeriesPowerEdge R940
ModelR940
TypeRack
Rack Height3U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.40 GHz
CPU SocketLGA 3647
Number of CPU Cores20-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

5 more in the same range

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

Questions about this item

What comes in the box and what must be purchased separately?

The server ships with four Xeon Gold 6148 processors, 256 GB DDR4 memory in eight 32 GB modules, eight 2.4 TB SAS drives, a PERC H730P controller with battery, dual 10 GbE SFP+ and dual 1 GbE ports, iDRAC9 Enterprise, two 1600 W power supplies, rails and a front bezel. No additional components are required for basic operation.

How do I choose between the installed 256 GB and the 6 TB maximum capacity?

The system has 48 DDR4 slots and currently uses eight 32 GB registered ECC modules. Start with 256 GB for standard virtualisation; add more 32 GB modules in matched sets if workloads such as large databases or in-memory analytics need more than 256 GB.

What does the 2.4 GHz base and 3.7 GHz turbo mean for real workloads?

Each of the 20 cores runs at 2.4 GHz continuously and can boost to 3.7 GHz on active cores when thermal headroom allows, giving strong single-thread response for bursty database queries while maintaining steady multi-thread throughput for virtualisation.

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