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DELL

DELL PowerEdge R640 4LFF 1x Xeon Silver 4108 128GB DDR4 rack server

SKU CH-GVR2-9PKQD

A 1U rack server with four 3.5-inch drive bays, one Xeon Silver 4108 at 1.8GHz, 128GB DDR4 ECC memory and a PERC H740P RAID controller

  • ProcessorIntel Xeon
  • Installed RAM128 GB
  • Type of memoryDDR4
  • Processor speed1.8 GHz
  • Installed CPUs1
  • Max supported CPUs2
  • 1x Xeon Silver 4108 8-core CPU at 1.8GHz
  • 128GB DDR4 ECC registered memory installed
  • Dell PERC H740P RAID controller included
  • iDRAC9 Enterprise remote management ready
  • 4-bay 3.5-inch LFF chassis for storage flexibility

Dell PowerEdge R640 4LFF single-socket server

The Dell PowerEdge R640 4LFF is a 1U rack server equipped with one Intel Xeon Silver 4108 processor running at 1.8GHz with eight cores and 11MB cache. It ships with 128GB of DDR4 ECC registered memory and a PERC H740P RAID controller supporting up to four 3.5-inch SATA drive bays. Remote management is handled by iDRAC9 Enterprise, and dual 750W power supplies provide redundancy.

Suits single-socket workloads needing dense

This configuration fits environments that want a compact rack chassis with four large-form-factor bays and a single 8-core processor. The installed 128GB DDR4 and PERC H740P cover virtualisation or database tasks that do not require dual CPUs from the start. Buyers who need two processors installed immediately or more than four drive bays should evaluate other platforms.

Four 3.5-inch SATA bays with PERC H740P RAID

The chassis accepts up to four 3.5-inch SATA drives managed by the PERC H740P controller, which determines the RAID levels and throughput available. No drives are installed, so the buyer selects capacity and redundancy to match the workload. This bay count and controller combination is the primary factor when deciding if the R640 4LFF matches the storage design.

How it compares

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

Price $1,404.99
Cheaper than about 62% of the 17,641 comparable items (median $1,910.99).
Installed RAM 128 GB
Typical for this category: the median of 15,103 items is 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 CPUs1
Max supported CPUs2
Memory
Installed RAM128 GB
Type of memoryDDR4
Maximum RAM capacity7.68 TB
Storage
Installed storage24,00
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 do I install the PERC H740P controller in this R640 4LFF server and which step is often missed?

Install the PERC H740P into the dedicated storage-controller slot, connect its cables to the 3.5" drive backplane, then enable the controller in the BIOS before creating virtual disks — skipping the BIOS enable step leaves the drives invisible to the OS.

What maintenance will the 750 W power supplies need after prolonged operation?

The two 750 W supplies are hot-plug redundant; schedule regular fan and dust cleaning, and replace a unit only if its status LED shows a fault or iDRAC9 reports a power-supply degradation.

What is the first limit reached when all four 3.5" bays are populated and the Xeon Silver 4108 runs sustained workloads?

With a single 8-core 1.8 GHz Xeon Silver 4108 the CPU thermal ceiling is typically the first bottleneck under sustained load, especially when all four drive bays are active and system fans ramp to maximum.

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