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Silver rack-mount server chassis with four 3.5 inch drive bays visible

DELL

DELL PowerEdge R640 4LFF Xeon Gold 6138 256GB DDR4

SKU CH-NJW8-KHK7S

A 1U rack server with four 3.5-inch drive bays, one 20-core Xeon Gold 6138 processor at 2.0 GHz and 256 GB DDR4 ECC memory

  • TypeRack
  • CPU TypeIntel Xeon
  • CPU Speed2 GHz
  • # of Processors Installed1
  • MAX Processors2
  • Installed Memory Size256GB
  • 20-core Xeon Gold 6138 at 2.0 GHz powers demanding workloads
  • 256 GB DDR4 ECC registered memory scales to 7.68 TB
  • PERC H740P RAID controller manages four 3.5" SATA drive bays
  • iDRAC9 Enterprise licence enables full remote server management
  • Dual 750 W power supplies and 10 GbE 562T adapter ensure resilient connectivity

Dell PowerEdge R640 4LFF Server

This 1U rack server ships with one Intel Xeon Gold 6138 processor at 2.0 GHz and 20 cores. It includes 256 GB DDR4 ECC registered memory across 16 DIMMs. The chassis provides four 3.5-inch drive bays and a PERC H740P RAID controller.

Suits virtualisation hosts needing dense CPU

The single-socket configuration with 256 GB RAM supports heavy workloads in a compact rack unit. Buyers who need dual-socket performance or more than four drive bays should look at a larger chassis. No drives are installed so storage must be sourced separately.

Four 3.5-inch SATA bays with PERC H740P

The backplane accepts up to four SATA hard drives managed by the hardware RAID controller. This drive-count limit decides whether the platform fits the planned storage layout.

Points forts

  • 20-core Xeon Gold 6138 at 2.0 GHz powers demanding workloads
  • 256 GB DDR4 ECC registered memory scales to 7.68 TB
  • PERC H740P RAID controller manages four 3.5" SATA drive bays
  • iDRAC9 Enterprise licence enables full remote server management
  • Dual 750 W power supplies and 10 GbE 562T adapter ensure resilient connectivity

Caractéristiques

BrandDELL
SeriesPowerEdge
ModelRack Mount
TypeRack
CPU TypeIntel Xeon
CPU Speed2 GHz
# of Processors Installed1
MAX Processors2
Installed Memory Size256GB
Memory TypeDDR4
Max Memory Capacity7.68TB
Hard Drive (Installed)4,00
Storage ControllerDell PERC H740P Controller
HDD InterfaceSATA
GPU TypeIntegrated Graphics
Remote ManagementiDRAC9 - Enterprise License
Dimensions36 x 24 x 10 in
Weight40

Questions sur cet article

What interface does the PERC H740P controller use for the 3.5" drive bays, and what speed does it cap at?

The controller connects the four 3.5-inch bays through SATA, so each drive runs at SATA speeds.

What rack dimensions and rail clearance does the R640 4LFF chassis need to mount?

The unit measures 36 by 24 by 10 inches and weighs 40 pounds; a standard 1U rail kit fits the 36-inch depth.

How is the Xeon Gold 6138 installed, and which step do builders often miss?

Seat the 20-core 2.0 GHz processor in socket 1, apply thermal paste, attach the heatsink, then populate all 16 DIMM slots with the 16 GB DDR4 modules for 256 GB total.

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