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Silver 1U rackmount server front with ten 2.5-inch drive bays and status LEDs

DELL

DELL PowerEdge R640 40-Core NVMe Rack Server 2x Xeon Gold 6148 256GB DDR4

SKU CH-N1RH-B1NGQ

A 1U rack server with dual Xeon Gold 6148 CPUs, 40 total cores, 256 GB DDR4 and ten 2.5-inch bays, eight NVMe-capable

  • ProcessorGold 6148
  • Installed RAM256 GB
  • Processor core count12
  • Operating systemNo
  • Type of memoryDDR4
  • Processor socketLGA3647
  • 40 cores from dual Xeon Gold 6148 CPUs handle heavy virtualization workloads
  • 256 GB DDR4 memory supports dense VM consolidation and large datasets
  • 10 x 2.5" bays with 8 NVMe-capable slots enable high-speed storage arrays
  • 1U rackmount form factor fits standard data-center cabinets efficiently
  • Supports up to 3 TB DDR4 for future memory expansion

Dual Xeon Gold 6148 Server

The Dell PowerEdge R640 is a 1U rackmount server system built for business workloads such as virtualization, databases, and application hosting. It ships with two Intel Xeon Gold 6148 processors running at 2.40GHz, delivering a total of 40 cores for multi-threaded performance. The system includes 256GB of DDR4 memory and supports a maximum capacity of 3TB. This new unit is configured without installed drives, leaving the 10-bay chassis ready for your storage selection.

Virtualization and Database Focus

This configuration suits IT teams deploying virtualized environments, file storage, or backup infrastructure in a data centre or server room. The 10-bay front panel supports eight NVMe-capable 2.5-inch bays for high-speed storage arrays. Buyers who require pre-installed operating systems or drives should look elsewhere, as the server arrives without an OS or storage media. Workloads needing GPU acceleration are not supported by the integrated graphics controller.

Rackmount Installation Notes

The 60-unit weight requires two people or a mechanical lift for safe rack mounting on standard square-hole or threaded rails. The LGA3647 sockets are fully populated, preventing future CPU upgrades without removing an existing processor. Memory expansion uses DDR4 RDIMM or LRDIMM modules only; other generations will not fit the slots.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $2,739.99
Pricier than about 62% of the 17,641 comparable items (median $1,910.99).
Installed RAM 256 GB
Higher than about 60% of the 15,103 comparable items (median 128 GB).
Processor core count 12
Lower than about 60% of the 7,955 comparable items (median 16).

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Specifications

Product
Brand nameDELL
Product typeRackmount
Processor
ProcessorGold 6148
Processor core count12
Processor socketLGA3647
Processor speed2.4 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM256 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Storage
Drive bays10B - 10x 2.5 in (8x NVMe Capable)
Graphics
Graphics chipIntegrated
Software
Operating systemNo
More details
Indicator lightsPower, Ethernet, USB

Questions about this item

What drive form factor and interface does the 10-bay backplane accept?

The backplane holds ten 2.5-inch drives and eight of those bays are NVMe-capable.

Will the dual Xeon Gold 6148 CPUs work with my existing LGA3647 socket motherboard?

Yes, both processors use the LGA3647 socket, matching the motherboard already in the R640.

How can I confirm the 40 cores and 256 GB DDR4 are recognised after installation?

Check the BIOS POST screen or iDRAC inventory; both will list 40 logical cores and 256 GB of DDR4 memory.

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