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DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6142 2.6GHz 16C 128GB DDR4 H730P

SKU CH-357M-KKA76

Dual-socket 1U rack server with 2 Xeon Gold 6142 16-core CPUs, 128GB DDR4 ECC memory, PERC H730P RAID controller, eight 2.5-inch drive bays, quad-port 1GbE/10GbE networking, iDRAC9 Enterprise.

  • ProcessorIntel Xeon
  • Installed RAM128 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count16-Core Processor
  • Dual 16-core Xeon Gold 6142 CPUs run at 2.6 GHz base with 3.7 GHz turbo
  • 128 GB DDR4 2666 MHz registered ECC memory across 8 modules
  • PERC H730P 2 GB controller supports RAID 0/1/5/6/10/50/60 with battery backup
  • Quad-port X520/I350 daughter card provides 2× 1 GbE and 2× 10 Gb SFP+ links
  • iDRAC 9 Enterprise, redundant 750 W platinum PSUs, rails and bezel included

Dual-socket 1U compute density

The PowerEdge R640 fits two Intel Xeon Gold 6142 processors into a single rack unit, each running at 2.6 GHz with 16 cores and a 3.7 GHz turbo frequency. Thirty-two total cores and 128 GB of DDR4 2666 MHz registered ECC memory provide a balanced foundation for virtualization clusters, database nodes or high-performance computing workloads that demand strong per-core performance in a compact footprint.

Sustained multi-threaded throughput

With both CPUs installed the system reaches its maximum processor count, allowing the Intel C620 chipset to manage memory across twenty-four DIMM slots up to a 3 TB ceiling. The PERC H730P controller with 2 GB cache and battery-backed write-back supports RAID 0, 1, 5, 6, 10, 50 and 60, maintaining consistent I/O latency during extended write-heavy operations. Redundant 750 W platinum power supplies share load continuously, preventing thermal throttling when all cores and drive bays are active.

Service-ready rack integration

Eight front-accessible 2.5-inch SAS/SATA trays accept hot-swap drives without tools, while the quad-port network daughter card delivers two 1 GbE and two 10 Gb SFP+ links for segmented traffic. iDRAC 9 Enterprise provides dedicated out-of-band management with virtual console and lifecycle automation. Ready Rails and a front bezel ship installed, enabling rapid deployment in standard four-post cabinets; the 1U height leaves no room for full-height PCIe cards, so expansion is limited to low-profile or mezzanine form factors.

How it compares

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

Price $1,041.99
Cheaper than about 73% 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.
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 RAM128 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSDNo
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSATA/SAS
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

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Questions about this item

How much power do the dual 750 watt PSUs draw when the R640 runs 24/7?

The system includes two 750 watt platinum redundant power supplies; actual draw depends on workload and power capping via iDRAC9.

Which drive trays and caddies are required to populate the eight 2.5 inch bays?

The unit ships with eight Dell 2.5 inch SAS/SATA trays; no drives or additional caddies are included.

Will my existing 10 Gb SFP+ DAC cables work with the X520/I350 daughter card?

The daughter card provides two 10 Gb SFP+ ports compatible with standard SFP+ direct-attach copper and optical modules.

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