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

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6148 2.4GHz 20C 128GB DDR4 H730P 8x 1.2TB SAS

SKU CH-ARKD-K67E4

Dual 20-core Xeon Gold 6148 CPUs at 2.4 GHz, 128 GB DDR4 ECC, PERC H730P RAID, eight 1.2 TB 10K SAS drives, quad-port 1/10 GbE networking, iDRAC9 Enterprise, redundant 750 W PSUs in a 1U rack chassis

  • ProcessorIntel Xeon
  • Installed RAM128 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count20-Core Processor
  • Dual Xeon Gold 6148 20-core CPUs deliver 40 threads at 2.4GHz base clock
  • 128GB DDR4 2666MHz ECC memory across 8 slots supports 3TB maximum capacity
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Eight 1.2TB 10K SAS drives provide high-speed enterprise storage in 2.5-inch bays
  • Quad-port X520/I350 network card offers dual 1GbE and dual 10Gb SFP+ connectivity

Dual-socket 1U server for dense compute

The Dell PowerEdge R640 is a 1U rack server built around two Intel Xeon Gold 6148 processors, each with 20 cores running at 2.4 GHz. It ships with 128 GB of DDR4 registered ECC memory across eight 16 GB modules. A PERC H730P controller with 2 GB cache drives eight 1.2 TB 10K SAS hard drives. Redundant 750 W platinum power supplies, iDRAC9 Enterprise, rails and a front bezel complete the package.

Suits scale-out workloads.

This configuration fits virtualisation clusters, database nodes and high-performance computing where core count and memory capacity matter. Buyers who need GPU acceleration, large all-flash arrays or single-thread frequency above 3.7 GHz should look at other platforms. The 2.5-inch drive bays and SAS interface limit raw capacity compared with 3.5-inch alternatives.

128 GB DDR4 registered ECC across 24 slots

Installed memory is 128 GB of DDR4-2666 registered ECC in eight slots, leaving 16 slots open for expansion up to the 3 TB platform maximum. The PERC H730P supports RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. Network I/O uses a quad-port daughter card with two 1 GbE and two 10 Gb SFP+ links.

How it compares

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

Price $1,322.99
Cheaper than about 64% 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 count20-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.4 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 interfaceSAS
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

How do I verify the PERC H730P RAID controller is managing the eight 1.2 TB SAS drives correctly after installation?

Open the controller BIOS during boot or log into iDRAC9 Enterprise to confirm all eight drives appear in a healthy virtual disk with the desired RAID level.

Which components are included and which must be sourced separately for this R640 configuration?

The server ships with two Xeon Gold 6148 CPUs, 128 GB DDR4 (8×16 GB), H730P controller, eight 1.2 TB SAS drives, X520/I350 quad-port NIC, iDRAC9 Enterprise, dual 750 W PSUs, bezel and rails; only an OS licence and rack mounting hardware are not included.

Should I choose the 128 GB DDR4 configuration or plan to populate more of the 24 DIMM slots later?

Start with the installed 128 GB (8×16 GB) if current workloads fit; the 24 slots support up to 3 TB, so additional registered ECC DDR4 modules can be added as demand grows.

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