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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 2x Xeon Gold 6148 20C 2.4GHz 256GB DDR4 8x 2.4TB SAS H730P

SKU CH-0N15-EHFM7

Dual-socket 1U rack server with 40 total cores, 256 GB DDR4 ECC, eight 2.4 TB SAS drives and PERC H730P RAID controller

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Dual 20-core Xeon Gold 6148 processors deliver 40 total cores for heavy workloads
  • 256 GB DDR4 ECC memory across 8 slots supports large datasets
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Eight 2.4 TB 10K SAS drives provide high-capacity enterprise storage
  • iDRAC9 Enterprise plus quad-port 1/10 GbE give remote control and fast networking

Dual-Socket 1U Server Platform

The Dell PowerEdge R640 is a 1U rack server built for dense scale-out deployments. It ships with two Intel Xeon Gold 6148 processors, each delivering 20 cores at 2.4 GHz with 3.7 GHz turbo. The system includes 256 GB of DDR4 registered ECC memory across eight 32 GB modules and dual 750 W platinum power supplies for redundancy.

Compute-Dense Workloads vs. Expansion Needs

This configuration suits virtualisation clusters, database nodes and high-performance computing tasks that benefit from 40 total cores and large memory capacity in a single rack unit. The eight-bay 2.5-inch chassis filled with 2.4 TB SAS drives leaves no room for additional internal storage, so buyers who need more drive bays must look elsewhere.

PERC H730P RAID Controller Decides Fit

The installed Dell PERC H730P 2 GB controller provides 12 Gb/s SAS and SATA connectivity with hardware RAID levels 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. Confirm this controller matches your storage topology and RAID requirements before purchase.

Highlights

  • Dual 20-core Xeon Gold 6148 processors deliver 40 total cores for heavy workloads
  • 256 GB DDR4 ECC memory across 8 slots supports large datasets
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Eight 2.4 TB 10K SAS drives provide high-capacity enterprise storage
  • iDRAC9 Enterprise plus quad-port 1/10 GbE give remote control and fast networking

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 Size256GB
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

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Questions about this item

How many CPU cores does the dual Xeon Gold 6148 configuration provide for sustained workloads?

The two Xeon Gold 6148 processors deliver 20 cores each, giving 40 cores total at 2.4 GHz base with 3.7 GHz turbo for heavy sustained compute.

What is the power draw of the redundant supplies when the server runs continuously?

Dual 750 Watt platinum-efficiency power supplies share the load, providing redundancy while keeping heat and fan noise lower under all-day operation.

Which memory modules must already be on hand to expand the 256 GB DDR4 installation?

The system uses DDR4 2666 MHz registered ECC DIMMs; 24 slots are available and 8 are populated with 32 GB modules, so matching DDR4 RDIMMs are required for expansion.

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