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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 600GB SAS H730P

SKU CH-QSR1-Z4M3E

A 3U rack server with four Xeon Gold 6148 20-core processors, 256 GB DDR4 ECC memory, a PERC H730P controller, and eight 600 GB SAS drives for high-density compute

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

Installed Memory Size 256GB

HDD 8 x 600GB 10K SAS

CPU Model Gold 6148

Struck-through versions exist but are not stocked here.

  • Four 20-core Xeon Gold 6148 CPUs give 3.7 GHz turbo for peak throughput
  • 256 GB DDR4 2666 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 600 GB 10K SAS drives deliver fast 12 Gb/s storage in 2.5-inch bays
  • iDRAC 9 Enterprise plus quad-port 1 GbE and 10 Gb SFP+ networking for remote management and high-speed I/O

Mission-critical 3U server

This Dell PowerEdge R940 is a 3U rack server built for mission-critical workloads. It ships with four Intel Xeon Gold 6148 processors running at 2.4 GHz with a 3.7 GHz turbo frequency. The system includes 256 GB of DDR4 registered ECC memory across eight 32 GB modules. Dual 1600 watt redundant power supplies and iDRAC 9 Enterprise remote management are standard.

Database clusters versus smaller deployments

The four-socket design and 48 memory slots suit organisations running heavily threaded databases, virtualisation clusters or in-memory analytics. Buyers who need a lower core count or a smaller memory footprint should consider a two-socket platform. The 3U form factor also requires a compatible rack enclosure with sufficient depth and cooling capacity.

Four-socket Xeon Gold 6148 configuration

The defining specification is the quartet of Xeon Gold 6148 CPUs delivering 20 cores each at 2.4 GHz base clock. This fixed four-processor layout determines the licensing tier, thread density and memory-channel population for the workloads above.

Highlights

  • Four 20-core Xeon Gold 6148 CPUs give 3.7 GHz turbo for peak throughput
  • 256 GB DDR4 2666 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 600 GB 10K SAS drives deliver fast 12 Gb/s storage in 2.5-inch bays
  • iDRAC 9 Enterprise plus quad-port 1 GbE and 10 Gb SFP+ networking for remote management and high-speed I/O

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

Should I pick the four-processor model or look for a two-processor version?

This unit ships with four Xeon Gold 6148 processors already installed, giving the maximum 4-socket configuration the R940 supports.

What does the 2.4 GHz clock speed deliver inside a live server?

Each 20-core Xeon runs at 2.4 GHz base and can reach 3.7 GHz turbo when thermal headroom allows.

How does the 12 Gb/s SAS controller limit real-world drive throughput?

The PERC H730P runs at 12 Gb/s per SAS lane, so the eight 10K drives share that bandwidth through the controller.

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