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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

  • TypeRack
  • CPU TypeIntel Xeon
  • CPU Speed2.2GHz
  • # of Processors Installed2
  • MAX Processors2
  • Installed Memory Size768GB
  • 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.

Highlights

  • 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

Specifications

BrandDELL
SeriesPowerEdge
ModelRack Mount
TypeRack
CPU TypeIntel Xeon
CPU Speed2.2GHz
# of Processors Installed2
MAX Processors2
Installed Memory Size768GB
Memory TypeDDR4
Max Memory Capacity7.68TB
Hard Drive (Installed)2,00
Storage ControllerDell PERC H740P Controller
HDD InterfaceSATA
GPU TypeIntegrated Graphics
Remote ManagementiDRAC9 - Enterprise License
Dimensions36 x 24 x 10 in
Weight40

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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