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Silver 1U rack server front with eight 2.5-inch drive bays and bezel

DELL

DELL PowerEdge R640 1U rack server 2x Xeon Gold 6142 2.6GHz 16-core 256GB DDR4 H730P

SKU CH-F1YW-MG9BE

A 1U rack server with dual Xeon Gold 6142 16-core processors at 2.6 GHz, 256 GB DDR4 memory, PERC H730P RAID controller, eight 2.5-inch drive bays.

  • ProcessorIntel Xeon
  • Installed RAM256 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count16-Core Processor
  • Dual 16-core Xeon Gold 6142 CPUs deliver 32 cores at 2.6 GHz with 3.7 GHz turbo
  • 256 GB DDR4 2666 MHz registered ECC memory across 24 slots scales to 3 TB
  • PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60 and pass-through
  • Quad-port X520/I350 card provides two 1 GbE and two 10 Gb SFP+ connections
  • iDRAC9 Enterprise plus dual 750 W platinum PSUs enable remote management and redundant power

Dual-socket 1U compute density

The Dell PowerEdge R640 packs two Intel Xeon Gold 6142 processors into a single rack unit, delivering 32 cores and 64 threads at a 2.60 GHz base frequency. It is built for virtualization clusters, high-performance databases and scale-out workloads that demand maximum throughput per rack slot.

Sustained multi-core throughput

With 256 GB of DDR4 2666 MHz registered ECC memory across 24 slots, the system maintains consistent bandwidth for memory-bound applications under continuous load. Dual 750 W platinum power supplies and redundant hot-swap cooling keep both CPUs at their rated turbo frequency without thermal throttling during extended compute runs.

12 Gb/s SAS/SATA storage ceiling

The PERC H730P controller with 2 GB cache supports RAID 0, 1, 5, 6, 10, 50 and 60 across eight 2.5-inch drive bays, limiting array performance to the SAS/SATA interface rather than PCIe-attached flash. Network I/O is bounded by the quad-port daughter card providing two 1 GbE and two 10 Gb SFP+ links.

How it compares

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

Price $1,376.99
Cheaper than about 62% 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 SSDNo
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSATA/SAS
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 loud and hot does the R640 get with both Xeon Gold 6142 CPUs at full load all day?

Dual 750 W Platinum supplies and redundant hot-swap fans keep the 1U chassis cool; power draw scales with the 2.6 GHz base and 3.7 GHz turbo clocks of the two 16-core processors.

Which drives and cabling must I supply to use the eight 2.5-inch bays?

The H730P controller supports SATA and SAS drives; eight empty trays are included, so you add the 2.5-inch disks and cables you need.

Will my existing DDR4-2666 ECC DIMMs work alongside the installed memory?

Yes, the 24 slots accept registered DDR4 ECC up to 2666 MHz; the system ships with 256 GB in eight 32 GB modules, leaving 16 slots free for matching sticks.

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