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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

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • 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.

Highlights

  • 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

Specifications

BrandDELL
SeriesPowerEdge R640
ModelR640
TypeRack
Rack Height1U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.40 GHz
CPU SocketLGA 3647
Number of CPU Cores20-Core Processor
# of Processors Installed2
MAX Processors2
ChipsetIntel C620
Installed Memory Size128GB
Memory TypeDDR4
Max Memory Capacity3TB
Number of Memory Slots24
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSAS
SSD (Installed)No
Raid LevelRAID 0/1/5/6/10/50/60
GPU TypeMatrox G200
Video Memory8MB
Ethernet ControllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
LAN Ports4 x Ports
Expansion SlotsUp to 3 PCIe Gen 3 slots all x16
Management PortRJ 45
Operating SystemNo
Features8 x 2.5" SATA/SAS Hot-Plug Drive Bays

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

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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