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Silver 1U rack server with front bezel, eight 2.5-inch drive bays and dual redundant power supplies

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6142 2.6GHz 16-Core 256GB DDR4 2x 400GB SSD

SKU CH-G3K4-2AJE1

Dual-socket 1U rack server with two 16-core Xeon Gold 6142 processors at 2.6 GHz, 256 GB DDR4 ECC memory, PERC H730P RAID controller, and two 400 GB SATA SSDs

  • ProcessorIntel Xeon
  • Installed RAM256 GB
  • Video RAM8 MB
  • Installed SSD2 × 400 GB SATA SSD
  • ChipsetIntel C620
  • Processor core count16-Core Processor
  • Dual 16-core Xeon Gold 6142 CPUs deliver 32 total cores for heavy compute workloads
  • 256GB DDR4 2666MHz ECC memory across 8 modules supports large virtualisation density
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Dual 400GB SATA SSDs provide fast boot and application storage in hot-swap bays
  • Quad-port X520/I350 network card adds 2×1GbE and 2×10Gb SFP+ connectivity

Dual-socket 1U rack server

The Dell PowerEdge R640 is a 1U rack server built for dense scale-out data centre computing. It ships with two Intel Xeon Gold 6142 processors, each running at 2.6 GHz with 16 cores. The system includes 256 GB of DDR4 registered ECC memory across 24 slots. Redundant 750 W platinum power supplies and a front bezel with rails are included.

Suits virtualisation hosts needing maximum core

This configuration suits virtualisation hosts and compute clusters that need 32 total cores and 256 GB of DDR4 memory in a single rack unit. The PERC H730P controller supports RAID 0, 1, 5, 6, 10, 50 and 60 with a 2 GB cache. Buyers who need more than two processors or require 3.5-inch drive bays should look elsewhere.

256 GB DDR4 registered ECC memory across 24 DIMM

The installed 256 GB of DDR4 2666 MHz registered ECC memory occupies eight of the 24 available slots. This leaves 16 slots free for expansion up to the 3 TB maximum capacity. The memory type and slot count are the decisive factors when planning future upgrades or validating compatibility with existing modules.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $1,458.99
Cheaper than about 60% of the 17,641 comparable items (median $1,910.99).
Installed RAM 256 GB
Higher than about 60% of the 15,103 comparable items (median 128 GB).
Video RAM 8 MB
Typical for this category: the median of 8,309 items is 0.01 GB.

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Specifications

Product
Brand nameDELL
Product linePowerEdge R640
Model nameR640
Product typeRack
Processor
ProcessorIntel Xeon
Processor core count16-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.6 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM256 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSD2 × 400 GB SATA SSD
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSATA
Supported RAID levelsRAID 0/1/5/6/10/50/60
Graphics
Video RAM8 MB
Graphics chipMatrox G200
Connectivity
Network controllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
Ports & slots
Network ports4 x Ports
Expansion card slotsUp to 3 PCIe Gen 3 slots all x16
Management interfaceRJ 45
Power
Hot-swap redundant PSUYes
Size & build
Rack height1U
Software
Operating systemNo

Other versions of this model

5 more in the same range

Questions about this item

How long will the H730P controller battery last before it needs replacing?

The PERC H730P includes a 2 GB battery-backed cache; the battery typically lasts several years and can be swapped without removing the controller.

What limits sustained CPU performance in this 1U chassis?

Dual Xeon Gold 6142 processors share a 750 W redundant power budget, so thermal headroom in the 1U form factor is the first constraint under continuous load.

How loud and hot does the server get when running 24/7?

Redundant 750 W Platinum supplies and high-speed 1U fans keep components cool, but expect noticeable fan noise and warm exhaust air during all-day operation.

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