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Dell PowerEdge R640 1U rack server, silver front bezel with four 3.5-inch drive bays

DELL

DELL PowerEdge R640 4LFF 2x Xeon Silver 4114 256GB RAM No Drive

SKU CH-XFR9-P2T93

A 1U rack server with two 10-core Xeon Silver 4114 CPUs at 2.2 GHz, 256 GB DDR4 ECC memory, a PERC H740P RAID controller and four 3.5-inch drive bays ready for SATA storage

  • ProcessorIntel Xeon
  • Installed RAM256 GB
  • Type of memoryDDR4
  • Processor speed2.2 GHz
  • Installed CPUs2
  • Max supported CPUs2
  • Dual Xeon Silver 4114 CPUs deliver 20 cores at 2.2GHz
  • 256GB DDR4 ECC memory supports heavy virtualization workloads
  • PERC H740P RAID controller manages up to four 3.5" SATA drives
  • iDRAC9 Enterprise enables full remote server management
  • 10GbE dual-port 562T adapter provides high-speed network connectivity

Dell PowerEdge R640 dual Xeon server

The Dell PowerEdge R640 is a 1U rack server fitted with two Intel Xeon Silver 4114 processors running at 2.2GHz. Each CPU provides ten cores and 13.75MB of cache, giving twenty cores in total. The system ships with 256GB of DDR4 ECC registered memory installed across the available slots. It is aimed at organisations that need dense compute for virtualisation, database or high-performance workloads in a standard rack footprint.

Four 3.5-inch drive bays with SATA interface

The chassis supports up to four 3.5-inch drives connected through a SATA backplane and the Dell PERC H740P RAID controller. No drives are included, so buyers must supply their own SATA HDDs or SSDs. The controller handles RAID levels supported by the H740P firmware, but the interface limits throughput to SATA speeds. The board provides a maximum memory ceiling of 7.68TB, though only 256GB is populated in this configuration.

Dual 750W supplies and iDRAC9 Enterprise remote

Two 750W power supplies provide redundancy for continuous operation. Remote management is handled by iDRAC9 with an Enterprise licence, allowing out-of-band monitoring, firmware updates and virtual console access over the network. A 10GbE two-port 562T adapter is installed for high-speed connectivity. The unit measures 36 by 24 by 10 inches and weighs 40 units; rail kits are available on request.

How it compares

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

Price $1,723.99
Cheaper than about 54% 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).
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 RAM256 GB
Type of memoryDDR4
Maximum RAM capacity7.68 TB
Storage
Installed storage40,00
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

Should I choose the 4LFF chassis or a different drive-bay layout for the PowerEdge R640?

The 4LFF chassis provides four 3.5-inch bays for high-capacity SATA drives. If you need more bays in the same 1U height you would need the small-form-factor version, which is not this model.

What does the 2.2 GHz figure mean for the two Xeon Silver 4114 CPUs once the server is running workloads?

Each Xeon Silver 4114 runs at a base frequency of 2.2 GHz across its 10 cores, giving 20 cores total. Turbo can raise clocks higher depending on thermal headroom and the number of active cores.

How does the PERC H740P controller and SATA interface limit the storage performance I can get?

The PERC H740P connects to the four 3.5-inch bays through SATA links. Drive throughput will not exceed the SATA bus, so the controller’s cache and RAID features operate within that ceiling.

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