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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 768GB DDR4 2x 400GB SSD H730P

SKU CH-PWF9-8TXFH

Dual 20-core Xeon Gold 6148 CPUs at 2.4 GHz with 768 GB DDR4 ECC memory, PERC H730P RAID, and two 400 GB SSDs in a 1U rack server

  • 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 total cores for heavy compute
  • 768 GB DDR4 ECC memory across 24 slots supports large workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Dual 10 GbE SFP+ plus dual 1 GbE ports provide high-speed networking
  • Redundant 750 W platinum PSUs and iDRAC9 Enterprise ensure uptime and remote control

Dual-Socket 1U Compute Platform

The Dell PowerEdge R640 is a dual-socket 1U rack server built for dense scale-out workloads. Two Xeon Gold 6148 processors deliver 40 total cores at 2.4 GHz with 3.7 GHz turbo. The system ships with 768 GB of DDR4 2666 MHz registered ECC memory across 24 slots. It targets organisations that need high core-count density in a single rack unit.

Redundant Platinum Power and Thermal Design

Redundant hot-swap 750 W platinum-efficiency power supplies feed both processors, memory and storage while maintaining uptime during a module failure. The 1U chassis uses forced-air cooling calibrated for the installed 20-core CPUs and dual SSDs. Power draw scales with workload, and the platinum-rated units minimise losses at typical utilisation levels.

Eight-Bay Front Storage with Hardware RAID

Eight 2.5-inch front bays accept SATA or SAS drives; two 400 GB SATA SSDs are installed. The PERC H730P 2 GB controller provides hardware RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through. A quad-port network daughter card adds two 1 GbE and two 10 Gb SFP+ links. iDRAC 9 Enterprise enables remote firmware updates, power control and console access without an operating system. Ready rails and a front bezel are included for immediate rack mounting.

Highlights

  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 total cores for heavy compute
  • 768 GB DDR4 ECC memory across 24 slots supports large workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Dual 10 GbE SFP+ plus dual 1 GbE ports provide high-speed networking
  • Redundant 750 W platinum PSUs and iDRAC9 Enterprise ensure uptime and remote control

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 Size768GB
Memory TypeDDR4
Max Memory Capacity3TB
Number of Memory Slots24
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSATA
SSD (Installed)2 x 400GB 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

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Questions about this item

How do I install the 24 DDR4 32GB modules and what step is often missed?

Populate all 24 slots with registered ECC DDR4 2666MHz modules; the step often missed is enabling the memory training sequence in BIOS after the first boot.

When will the PERC H730P controller battery need replacement?

The 2GB cache battery on the H730P typically lasts 3 to 5 years; replace it when iDRAC9 reports a battery degradation alert.

What thermal limit appears first when both Xeon Gold 6148 CPUs run at 3.7GHz turbo under sustained load?

The 750W platinum power supplies hit their current limit before the CPU thermal throttle activates.

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