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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 768GB DDR4

SKU CH-A95G-58N60

Four-socket 3U rack server with 4× Xeon Gold 6148 20-core CPUs, 768 GB DDR4, PERC H730P RAID, 2× 300 GB SAS drives, quad-port 1/10 GbE and redundant 1600 W PSUs

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

Installed Memory Size 768GB

HDD 2 x 300GB 10K SAS

CPU Model Gold 6148

  • Gold 6148
  • Platinum 8160
  • Gold 6142
  • Gold 5118
  • Gold 5120
  • Gold 6130

Struck-through versions exist but are not stocked here.

  • Four-socket Xeon Gold 6148 CPUs deliver 20 cores each at 2.4 GHz with 3.7 GHz turbo
  • 768 GB DDR4 2666 MHz registered ECC memory across 24 slots for large datasets
  • PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60 with battery-backed cache
  • Dual 1600 W platinum power supplies provide hot-swap redundancy in a 3U rack form factor
  • iDRAC 9 Enterprise plus quad-port 1 GbE and 10 Gb SFP+ networking for remote management

PowerEdge R940 3U rack server

The Dell PowerEdge R940 is a 3U rack-mounted server system built for dense compute in a compact form factor. It ships with four Intel Xeon Gold 6148 processors installed, each running at 2.4 GHz with 20 cores. The platform supports up to four sockets and uses the Intel C620 chipset.

Suited for memory-intensive workloads

This configuration includes 768 GB of DDR4-2666 registered ECC memory spread across 24 modules, leaving 24 additional slots for future expansion up to the 6 TB maximum. The PERC H730P controller manages the two included 300 GB 10K SAS drives with RAID 0, 1, 5, 6, 10, 50 and 60 support. Builders needing flash storage or higher drive counts should look at other platforms.

Four-socket Xeon Gold 6148 foundation

The single specification that determines fit is the four-processor layout using LGA 3647 sockets and the Intel C620 chipset. This defines the memory architecture, PCIe topology and power envelope for the entire chassis. If your workload requires a different socket or processor family, this server will not accept it.

Highlights

  • Four-socket Xeon Gold 6148 CPUs deliver 20 cores each at 2.4 GHz with 3.7 GHz turbo
  • 768 GB DDR4 2666 MHz registered ECC memory across 24 slots for large datasets
  • PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60 with battery-backed cache
  • Dual 1600 W platinum power supplies provide hot-swap redundancy in a 3U rack form factor
  • iDRAC 9 Enterprise plus quad-port 1 GbE and 10 Gb SFP+ networking for 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 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

5 more in the same range

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

Questions about this item

How do I verify the system posts with all four Xeon Gold 6148 20-core CPUs and 768GB DDR4?

Watch the iDRAC 9 Enterprise console during POST; it will enumerate four processors at 2.4 GHz, 20 cores each, and show 768 GB across 24 DIMM slots.

Which drives, rails and management licence are included, and what must I add for storage expansion?

The box contains two 300 GB 10K SAS drives, a PERC H730P 2 GB controller, ready rails, bezel and iDRAC 9 Enterprise; add up to six more 2.5" SAS/SATA drives for the remaining bays.

With 24 DIMMs already installed, which memory configuration should I pick to grow toward the 6 TB maximum?

The 768 GB ships as 24 × 32 GB DDR4-2666 RDIMMs; populate the remaining 24 slots with matching 32 GB or larger RDIMMs in sets of 12 per processor to keep channels balanced.

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