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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 4108 768GB DDR4 rack server

SKU CH-NDHW-Y4S9E

Dual 1.8 GHz Xeon Silver 4108 processors and 768 GB DDR4 memory in a 4-bay 3.5-inch rack chassis with PERC H740P controller and iDRAC9 Enterprise

  • ProcessorIntel Xeon
  • Installed RAM768 GB
  • Type of memoryDDR4
  • Processor speed1.8 GHz
  • Installed CPUs2
  • Max supported CPUs2
  • Dual Xeon Silver 4108 processors handle multi-threaded workloads
  • 768 GB DDR4 ECC memory supports large in-memory datasets
  • Four 3.5-inch drive bays allow high-capacity SATA storage
  • PERC H740P RAID controller provides hardware data protection
  • iDRAC9 Enterprise enables remote server management

Built for dense compute

The Dell PowerEdge R640 is a 1U rack server equipped with two Intel Xeon Silver 4108 processors running at 1.8GHz. It targets workloads that demand high core counts and large memory pools in a compact form factor.

Memory ceiling decides fit

The system ships with 768GB of DDR4 ECC registered memory and supports a maximum of 7.68TB across its DIMM slots. Buyers who need more capacity than the installed amount must verify slot availability before ordering.

Dual 750W supplies handle load

Two R720 power supplies rated at 750W each deliver redundancy for the dual-CPU configuration. The 4x3.5-inch drive bay chassis moves air front-to-rear, so fan speed scales with processor and memory thermal output.

How it compares

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

Price $3,234.99
Pricier than about 67% 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 1.8 GHz
Lower than about 96% 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 speed1.8 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

What does the 768GB DDR4 memory mean for a running workload?

The system ships with 768GB of DDR4 ECC registered memory installed across two Xeon Silver 4108 processors, giving a large working set for virtualization or database tasks before hitting the 7.68TB maximum capacity.

What does the PERC H740P controller cap for the four 3.5-inch SATA bays?

The PERC H740P RAID controller manages the four 3.5-inch SATA drive bays, providing hardware RAID levels and cache-backed write performance for the installed drives.

What physical space and weight should be planned for the 36 x 24 x 10 inch, 40-unit chassis?

The chassis measures 36 by 24 by 10 inches and weighs 40 units, so allow that depth and weight when positioning it in a rack or on a shelf.

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