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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 6148 2.4GHz 20-Core 768GB DDR4 8x 300GB SAS H730P

SKU CH-04R3-PBASE

A 3U rack server with four 20-core Xeon processors, 768GB DDR4 memory, eight 300GB SAS drives and a PERC H730P controller

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

Installed Memory Size 768GB

HDD 8 x 300GB 10K SAS

CPU Model Gold 6148

  • Four Xeon Gold 6148 CPUs provide 20 cores each for parallel workloads
  • 768GB DDR4 2666MHz ECC memory supports large datasets
  • PERC H730P RAID controller enables RAID 0/1/5/6/10/50/60
  • Eight 300GB 10K SAS drives deliver fast storage access
  • Dual 1600W platinum power supplies ensure continuous uptime

Four-socket Xeon server for dense workloads

The Dell PowerEdge R940 is a 3U rack system populated with four Intel Xeon Gold 6148 processors running at 2.4 GHz, each providing 20 cores. It ships with 768 GB of DDR4 2666 MHz registered ECC memory across 24 modules and eight 300 GB 10K SAS drives on a PERC H730P 2 GB controller. Dual 1600 W platinum power supplies, iDRAC9 Enterprise, quad-port networking and rails are included.

Suited to memory-intensive databases

This configuration targets organisations that need maximum core count and large memory capacity in a compact 3U chassis. The four-socket design supports up to 6 TB of DDR4 across 48 slots for future expansion. Buyers who require GPU acceleration or a smaller 1U or 2U form factor should evaluate alternative platforms.

768 GB DDR4 2666 MHz registered ECC memory installed

The system arrives with 24 x 32 GB modules filling half the available DIMM slots, leaving 24 slots open for growth to the 6 TB maximum. All memory is DDR4 registered ECC; no other generation or type is compatible with the Intel C620 chipset and LGA 3647 sockets.

Highlights

  • Four Xeon Gold 6148 CPUs provide 20 cores each for parallel workloads
  • 768GB DDR4 2666MHz ECC memory supports large datasets
  • PERC H730P RAID controller enables RAID 0/1/5/6/10/50/60
  • Eight 300GB 10K SAS drives deliver fast storage access
  • Dual 1600W platinum power supplies ensure continuous uptime

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

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Questions about this item

Does the PERC H730P controller support 12Gb/s SAS drives and which RAID levels are available?

The H730P is a 12Gb/s SAS/SATA controller with 2GB cache and supports RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode.

What rack height and rail kit does the R940 require?

The server is a 3U rack unit and includes Dell Ready Rails for mounting in standard 4-post racks.

How are the four Xeon Gold 6148 processors and 768GB of DDR4 installed, and what is a common mistake?

All four CPU sockets are populated and 24 DIMM slots are filled with 32GB modules; a common error is not seating every processor and memory module firmly before first power-on.

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