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Silver 1U rack server with eight 2.5-inch drive bays, front bezel and slide rails

DELL

DELL PowerEdge R640 1U rack server 2× Xeon Gold 5118 2.3 GHz 12-core 512 GB DDR4 2× 800 GB SSD H730P

SKU CH-5Q6N-FQ9T0

Dual-socket 1U rack server with two 12-core Xeon Gold 5118 CPUs, 512 GB DDR4 ECC memory, H730P RAID controller and two 800 GB SATA SSDs

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.30 GHz
  • CPU SocketLGA 3647
  • Dual 12-core Xeon Gold 5118 CPUs deliver 24 threads at 2.3 GHz with 3.2 GHz turbo
  • 512 GB DDR4 2400 MHz registered ECC memory across 16 modules supports up to 3 TB capacity
  • PERC H730P 2 GB controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Two 800 GB SATA SSDs provide fast boot and application storage in hot-swap bays
  • Quad-port X520/I350 network card adds dual 10 Gb SFP+ and dual 1 GbE connectivity

Dense 1U dual-socket server

The Dell PowerEdge R640 fits two Xeon Gold 5118 processors and 512 GB of DDR4 memory into a single rack unit. A PERC H730P controller manages two 800 GB SATA SSDs with RAID levels up to 60. Quad-port networking adds two 1 GbE and two 10 Gb SFP+ links, while iDRAC9 Enterprise provides full remote management. Redundant 750 W platinum supplies and rails complete the package.

Suits scale-out compute.

This configuration targets virtualization, cloud and HPC clusters that need maximum CPU cores per rack slot. The 1U chassis leaves no room for full-length GPU cards or more than eight 2.5-inch drives. Buyers who need hardware acceleration or dozens of terabytes in one box should look at larger form factors.

512 GB DDR4 registered ECC across 24 slots

Memory is the spec that decides fit: sixteen 32 GB modules fill 16 of 24 DIMM sockets at 2400 MHz, leaving eight slots open for expansion to the 3 TB platform maximum. Any workload that exceeds the installed capacity or requires a different memory generation will need a different configuration.

Highlights

  • Dual 12-core Xeon Gold 5118 CPUs deliver 24 threads at 2.3 GHz with 3.2 GHz turbo
  • 512 GB DDR4 2400 MHz registered ECC memory across 16 modules supports up to 3 TB capacity
  • PERC H730P 2 GB controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Two 800 GB SATA SSDs provide fast boot and application storage in hot-swap bays
  • Quad-port X520/I350 network card adds dual 10 Gb SFP+ and dual 1 GbE connectivity

Specifications

BrandDELL
SeriesPowerEdge R640
ModelR640
TypeRack
Rack Height1U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.30 GHz
CPU SocketLGA 3647
Number of CPU Cores12-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
SSD (Installed)2 x 800GB SATA SSD
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

Should I choose the 512 GB DDR4 configuration or add more memory later?

The server ships with 512 GB across 16 slots using 32 GB DDR4 modules, leaving 8 slots free to reach the 3 TB maximum.

What does the 2.3 GHz Xeon Gold 5118 speed mean for actual workloads?

Each of the two 12-core processors runs at 2.3 GHz base and can turbo to 3.2 GHz, giving 24 cores total for parallel tasks.

How does the PERC H730P controller limit the installed 800 GB SSDs?

The H730P provides 12 Gb/s SAS/SATA connectivity with RAID 0, 1, 5, 6, 10, 50, 60, so the two SATA SSDs operate at their 6 Gb/s link speed.

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