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Silver 1U rack server with front bezel, eight 2.5-inch drive bays and redundant power supplies

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6142 2.6GHz 16-Core 512GB DDR4 2x 800GB SSD H730P

SKU CH-J51B-PDHDG

Dual Xeon Gold 6142 16-core 1U rack server with 512GB DDR4, H730P RAID and two 800GB SSDs

  • ProcessorIntel Xeon
  • Installed RAM512 GB
  • Video RAM8 MB
  • Installed SSD2 × 800 GB SATA SSD
  • ChipsetIntel C620
  • Processor core count16-Core Processor
  • Dual Xeon Gold 6142 CPUs deliver 32 cores at 2.6 GHz base with 3.7 GHz turbo
  • 512 GB DDR4 2666 MHz registered ECC memory across 24 slots supports up to 3 TB
  • PERC H730P 2 GB controller enables RAID 0, 1, 5, 6, 10, 50, 60 and pass-through
  • Two 800 GB SATA SSDs provide fast solid-state storage in 2.5 inch hot-swap bays
  • Intel X520/I350 quad-port card adds 2× 1 GbE and 2× 10 Gb SFP+ networking

Dense compute platform

The Dell PowerEdge R640 is a 1U rack server built for scale-out workloads that demand high core counts in minimal space. Two Intel Xeon Gold 6142 processors deliver 32 cores at 2.6 GHz with 3.7 GHz turbo, backed by 512 GB of DDR4-2666 registered ECC memory across 24 slots. The PERC H730P controller manages up to eight 2.5-inch drives with hardware RAID and battery-backed cache.

Upgrade from single-socket density

This configuration replaces single-socket 1U servers when thread count and memory capacity become the bottleneck. The jump is worth it for virtualization clusters, database nodes or HPC front-ends that need 32 cores and up to 3 TB of memory in a single rack unit. Buyers who need more internal drive bays or GPU acceleration will not find them here.

Rack-ready integration

Dual 750 W platinum power supplies and hot-swap bays keep the chassis running during maintenance. The X520/I350 daughter card provides two 1 GbE and two 10 Gb SFP+ ports for flexible network fabric. iDRAC 9 Enterprise gives full out-of-band control, while included rails and bezel simplify cabinet installation.

How it compares

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

Price $2,728.99
Pricier than about 62% of the 17,641 comparable items (median $1,910.99).
Installed RAM 512 GB
Higher than about 80% of the 15,103 comparable items (median 128 GB).
Video RAM 8 MB
Typical for this category: the median of 8,309 items is 0.01 GB.

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Specifications

Product
Brand nameDELL
Product linePowerEdge R640
Model nameR640
Product typeRack
Processor
ProcessorIntel Xeon
Processor core count16-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.6 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM512 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSD2 × 800 GB SATA SSD
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSATA
Supported RAID levelsRAID 0/1/5/6/10/50/60
Graphics
Video RAM8 MB
Graphics chipMatrox G200
Connectivity
Network controllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
Ports & slots
Network ports4 x Ports
Expansion card slotsUp to 3 PCIe Gen 3 slots all x16
Management interfaceRJ 45
Power
Hot-swap redundant PSUYes
Size & build
Rack height1U
Software
Operating systemNo

Other versions of this model

5 more in the same range

Questions about this item

What rack depth and rail kit does the 1U PowerEdge R640 require for mounting?

The server is a 1U rack unit and ships with Ready Rails for tool-less installation in standard 4-post racks.

How are the two Xeon Gold 6142 processors and 16 DDR4 memory modules installed, and what step is often missed?

Both LGA 3647 sockets are already populated; the 16 installed 32 GB DDR4 modules fill 16 of the 24 DIMM slots in the correct channel order.

Which components in the R640 are hot-swappable and may need replacement during its service life?

The two 750 W power supplies, the eight 2.5" drive bays, and the PERC H730P controller battery are all hot-swappable field-replaceable units.

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