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Silver 1U rack server, four 3.5-inch drive bays, matte black front bezel

DELL

DELL PowerEdge R640 4LFF 2x Xeon Silver 4210 768GB DDR4 rack server

SKU CH-5XKC-4B4S8

A 1U rack server with two 2.2 GHz Xeon Silver 4210 processors, 768 GB DDR4 memory, a PERC H740P RAID controller, four 3.5-inch drive bays and dual 750 W power supplies

  • ProcessorIntel Xeon
  • Installed RAM768 GB
  • Type of memoryDDR4
  • Processor speed2.2 GHz
  • Installed CPUs2
  • Max supported CPUs2
  • Dual Xeon Silver 4210 CPUs provide 20 cores at 2.2GHz
  • 768GB DDR4 ECC memory supports memory-intensive workloads
  • PERC H740P RAID controller manages up to four 3.5" SATA drives
  • iDRAC9 Enterprise licence enables full remote server management
  • 1U rack form factor fits dense data-centre deployments

Target workload

This Dell PowerEdge R640 rack server arrives with two Xeon Silver 4210 processors running at 2.2GHz and 768GB of DDR4 memory, delivering 20 cores and 40 threads for virtualization, database or compute clusters that need dense memory capacity in a 1U form factor.

Buyer fit

The four 3.5-inch drive bays and PERC H740P RAID controller suit teams building local storage arrays on SATA drives, while the integrated iDRAC9 Enterprise licence provides full remote lifecycle management. Buyers who require more than four drive bays or a different drive form factor need a different chassis.

Deciding specification

Maximum supported memory reaches 7.68TB across the platform, so the installed 768GB represents ten percent of the ceiling and leaves headroom for future DIMM upgrades without replacing the server.

How it compares

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

Price $3,950.99
Pricier than about 72% of the 17,641 comparable items (median $1,910.99).
Installed RAM 768 GB
Higher than about 90% of the 15,103 comparable items (median 128 GB).
Processor speed 2.2 GHz
Lower than about 60% of the 9,950 comparable items (median 2.3 GHz).

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Specifications

Product
Brand nameDELL
Product linePowerEdge
Model nameRack Mount
Product typeRack
Processor
ProcessorIntel Xeon
Processor speed2.2 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM768 GB
Type of memoryDDR4
Maximum RAM capacity7.68 TB
Storage
Installed storage2,00
Disk controllerDell PERC H740P Controller
Drive interfaceSATA
Graphics
Graphics chipIntegrated Graphics
Size & build
Product dimensions36 × 24 × 10 in
More details
Management controlleriDRAC9 - Enterprise License

Questions about this item

How many DDR4 memory slots remain free for future upgrades?

The system supports up to 7.68 TB of DDR4 memory, so additional capacity can be added beyond the installed 768 GB.

Will the dual Xeon Silver 4210 processors hit their thermal limit before the 750 W power supplies do?

Each CPU has a 10-core design at 2.2 GHz, and the dual 750 W supplies provide headroom for sustained loads.

How loud are the fans when the R640 runs 24/7 with the PERC H740P controller active?

The 1U chassis uses high-speed fans to cool the dual processors and RAID controller, so expect noticeable airflow noise in a quiet room.

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