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Silver 1U rack server with front bezel, eight 2.5-inch drive bays and dual redundant power supplies

DELL

DELL PowerEdge R640 1U rack server 2x Xeon Gold 6148 2.4GHz 20-core 64GB DDR4

SKU CH-S3CM-D10KB

A 1U rack server with dual 20-core Xeon Gold 6148 CPUs, 64GB DDR4 ECC memory, PERC H730P RAID controller, quad-port 1GbE and 10Gb SFP+ networking, iDRAC9 Enterprise, and redundant 750W power supplies

  • 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 dense compute workloads
  • 64GB DDR4 2666MHz registered ECC memory supports error-corrected performance across 24 DIMM slots
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Quad-port X520/I350 card provides 2× 1GbE and 2× 10Gb SFP+ connectivity
  • iDRAC9 Enterprise plus dual 750W platinum PSUs ensure remote management and redundant power

Dense 1U dual-socket server

The Dell PowerEdge R640 is a 1U rack server fitted with two Intel Xeon Gold 6148 processors, each running at 2.4 GHz with 20 cores. It ships with 64 GB of DDR4 registered ECC memory across four 16 GB modules and includes a PERC H730P RAID controller with 2 GB cache. Eight 2.5‑inch SAS/SATA drive trays, quad-port networking and redundant 750 W power supplies complete the package.

Suited for scale-out workloads.

This platform targets dense virtualisation, database and high-performance computing clusters that benefit from 40 total cores in a single rack unit. Organisations needing GPU acceleration, more than eight front-accessible drive bays or a single-socket configuration should evaluate alternative platforms.

40 cores in 1U decides fit

The defining specification is the dual 20‑core Xeon Gold 6148 arrangement delivering 40 threads at 2.4 GHz base frequency within a 1U chassis. If the workload requires that core density in minimal rack space, this server matches; otherwise a different form factor or processor count is appropriate.

Privalumai

  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 total cores for dense compute workloads
  • 64GB DDR4 2666MHz registered ECC memory supports error-corrected performance across 24 DIMM slots
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery-backed cache
  • Quad-port X520/I350 card provides 2× 1GbE and 2× 10Gb SFP+ connectivity
  • iDRAC9 Enterprise plus dual 750W platinum PSUs ensure remote management and redundant power

Specifikacijos

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 Size64GB
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

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How do I install the Xeon Gold 6148 CPUs and what step is commonly missed?

Seat both LGA 3647 processors, apply thermal paste evenly, torque the heatsink screws in a cross pattern, then install all 64 GB of DDR4 2666 MHz registered ECC memory across the 24 slots; the step often missed is enabling the second CPU in BIOS before adding its memory channels.

What maintenance or replacement will the PERC H730P RAID controller need later?

The PERC H730P 2 GB controller uses a replaceable battery-backed write cache; plan to swap the battery module every 3 to 5 years to preserve RAID 0/1/5/6/10/50/60 data integrity during power loss.

What limit appears first under sustained full-load use?

The dual 750 W platinum power supplies set the thermal ceiling; continuous 20-core turbo at 3.7 GHz across both sockets can hit the 1U chassis cooling capacity before the CPUs reach their own throttle point.

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