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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 6148 2.4GHz 20 Core 512GB DDR4

SKU CH-YJGD-XH7GH

A 1U rack server with dual 20-core Xeon Gold 6148 CPUs at 2.4 GHz, 512 GB DDR4 ECC memory, PERC H730P RAID controller, eight 2.5-inch drive trays, quad-port 1/10 GbE networking.

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 threads at 2.4 GHz base
  • 512 GB DDR4 2666 MHz ECC memory across 16 slots for high capacity
  • PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60
  • Quad-port X520/I350 card provides two 1 GbE and two 10 Gb SFP+ links
  • iDRAC9 Enterprise plus dual 750 W platinum PSUs ensure remote control and power redundancy

Dense 1U dual-socket server

The Dell PowerEdge R640 is a 1U rack server built for high-density compute. It ships with two Intel Xeon Gold 6148 processors, each running at 2.4 GHz with 20 cores. The system includes 512 GB of DDR4 registered ECC memory across 16 modules. A PERC H730P controller and eight 2.5-inch drive trays provide internal storage connectivity.

Suited for virtualisation and scale-out workloads

This server fits environments that need maximum CPU cores and memory capacity in a single rack unit. The quad-port network card offers two 1 GbE and two 10 Gb SFP+ links for flexible fabric integration. Buyers who require GPU acceleration or more than eight drive bays should consider a larger chassis because this 1U form factor does not accommodate those expansions.

512 GB DDR4 registered ECC memory installed

The configured memory uses DDR4 2666 MHz registered ECC DIMMs, filling 16 of the 24 available slots. This capacity supports large virtual machine densities and in-memory databases directly. Verify that your workload fits within 512 GB or plan for additional modules up to the 3 TB maximum because memory type and slot count are fixed by the platform.

Highlights

  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 threads at 2.4 GHz base
  • 512 GB DDR4 2666 MHz ECC memory across 16 slots for high capacity
  • PERC H730P 2 GB controller supports RAID 0, 1, 5, 6, 10, 50, 60
  • Quad-port X520/I350 card provides two 1 GbE and two 10 Gb SFP+ links
  • iDRAC9 Enterprise plus dual 750 W platinum PSUs ensure remote control and power redundancy

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 Size512GB
Memory TypeDDR4
Max Memory Capacity3TB
Number of Memory Slots24
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSATA/SAS
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

What storage controller interface does the PERC H730P use and what speed does it cap at?

The PERC H730P is a 12Gb/s SAS/SATA controller with 2GB cache and battery backup.

What physical rails and rack height does the 1U server require?

The system ships with Dell Ready Rails and a front bezel for 1U rack mounting.

How is the quad-port network daughter card installed and what slot does it use?

The Intel X520/I350 card plugs into the dedicated network daughter card slot on the motherboard.

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