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Silver 1U rack server front view with eight 2.5 inch drive bays and bezel

DELL

DELL PowerEdge R640 1U rack server 2x Xeon Gold 6148 2.4GHz 20-core 128GB DDR4 H730P 2x 300GB SAS

SKU CH-NS6D-YRHB8

A 1U dual-socket rack server with two 20-core Xeon Gold 6148 processors, 128GB DDR4, PERC H730P RAID and two 300GB SAS drives

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz with 3.7 GHz turbo
  • 128 GB DDR4 2666 MHz registered ECC memory across 8 modules for high capacity
  • PERC H730P 2 GB controller supports RAID 0/1/5/6/10/50/60 and pass-through
  • Dual 300 GB 10K SAS drives plus 2×1 GbE and 2×10 GbE SFP+ ports
  • iDRAC9 Enterprise remote management with redundant 750 W platinum power supplies

Dual-socket 1U rack server

The Dell PowerEdge R640 is a 1U rack-mounted server designed for dense scale-out data centre deployments. It ships with two Intel Xeon Gold 6148 processors, each running at 2.4 GHz with 20 cores and a 3.7 GHz turbo frequency. The system includes 128 GB of DDR4 2666 MHz registered ECC memory across eight 16 GB modules.

SAS storage controller limits

Storage is managed by a Dell PERC H730P controller with 2 GB cache and battery backup. The controller supports SAS and SATA drives with RAID levels 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. Two 300 GB 10K SAS hard drives are installed in the eight available 2.5-inch drive bays.

Fixed dual-processor ceiling

The server accommodates a maximum of two processors, both sockets are already populated. Memory capacity can expand to 3 TB using the 24 DIMM slots, with 16 slots still free. Network connectivity provides two 1 GbE and two 10 Gb SFP+ ports via an Intel X520/I350 daughter card.

Highlights

  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz with 3.7 GHz turbo
  • 128 GB DDR4 2666 MHz registered ECC memory across 8 modules for high capacity
  • PERC H730P 2 GB controller supports RAID 0/1/5/6/10/50/60 and pass-through
  • Dual 300 GB 10K SAS drives plus 2×1 GbE and 2×10 GbE SFP+ ports
  • iDRAC9 Enterprise remote management with redundant 750 W platinum power supplies

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

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Questions about this item

Should I pick the 128 GB configuration or add more DDR4 later?

The server ships with 128 GB across 8 slots; 16 slots remain open so you can expand up to 3 TB of DDR4 2666 MHz ECC memory.

What does the 2.4 GHz Xeon Gold 6148 actually deliver under load?

Each of the two 20-core processors runs at 2.4 GHz base and can turbo to 3.7 GHz, giving 40 cores total for heavy multi-threaded workloads.

How does the PERC H730P controller limit drive performance?

The H730P provides 12 Gb/s SAS/SATA connectivity with 2 GB cache, supporting RAID 0/1/5/6/10/50/60 and pass-through for the 2.5-inch bays.

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