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Half-height blade server, silver metal enclosure, front drive trays visible

DELL

DELL PowerEdge M640 Blade Server 2x Xeon Gold 6154 18-Core 64GB DDR4

SKU CH-D82C-WBWNG

Half-height blade server with dual 18-core Xeon Gold 6154 CPUs at 3.0 GHz, 64 GB DDR4, PERC S140 controller, dual 2.5-inch drive bays, 10 Gb dual-port networking and iDRAC9 Enterprise management

  • ProcessorIntel Xeon
  • Installed RAM64 GB
  • Video RAM8 MB
  • Installed SSDNo
  • Processor core count18-Core Processor
  • Operating systemNo

Installed Memory Size 64GB

SSD (Installed) No

  • Dual 18-core Xeon Gold 6154 CPUs deliver 3.0 GHz base and 3.7 GHz turbo performance
  • 64 GB DDR4 2666 MHz ECC memory installed across 16 slots with 1.5 TB maximum capacity
  • Dell PERC S140 controller supports RAID 0/1/5/10 for SATA and NVMe drives
  • Dual-port 10 Gb Broadcom 57810S-K network daughter card provides high-speed blade connectivity
  • iDRAC 9 Enterprise enables full remote management and automation for simplified administration

Blade server for dense compute

The Dell PowerEdge M640 is a half-height blade server that fits into PowerEdge MX or M1000e chassis. It ships with two Intel Xeon Gold 6154 processors running at 3.0 GHz with a 3.7 GHz turbo, each providing 18 cores for a total of 36 cores. The system includes 64 GB of DDR4 2666 MHz registered ECC memory across four 16 GB modules. It is suited for virtualization, private cloud and high-performance computing workloads.

Storage controller and network card

The integrated Dell PERC S140 controller supports SATA and NVMe drives with RAID 0, 1, 5 and 10. Two 2.5-inch SAS/SATA drive caddies are included for internal storage. A Broadcom 57810S-K dual-port 10 Gb network daughter card provides high-speed connectivity. iDRAC9 Enterprise enables remote management and automation. No operating system, front bezel or ready rails are included.

Half-height blade form factor

This server requires a compatible PowerEdge MX or M1000e blade enclosure for power, cooling and fabric interconnects. It will not operate as a standalone rack or tower unit. Maximum memory capacity is 1.5 TB across 16 DDR4 slots, allowing future expansion. Buyers who need a self-contained rack server or a tower chassis should consider a different form factor.

How it compares

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

Price $660.99
Cheaper than about 89% of the 17,641 comparable items (median $1,910.99).
Installed RAM 64 GB
Lower than about 70% of the 15,103 comparable items (median 128 GB).
Video RAM 8 MB
Typical for this category: the median of 8,309 items is 0.01 GB.

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Specifications

Product
Brand nameDELL
Product linePowerEdge M640
Product typeBlade
Processor
ProcessorIntel Xeon
Processor core count18-Core Processor
Processor socketLGA 3647
Processor speed3 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM64 GB
Type of memoryDDR4
Maximum RAM capacity2 TB
Memory slot count16
Storage
Installed SSDNo
Disk controllerDell Perc S140 Controller
Supported RAID levelsRAID 0/1/5/10
Graphics
Video RAM8 MB
Graphics chipMatrox G200
Connectivity
Network controllerDell Broadcom 57810S-K 10Gb Dual Port Blade Network Daughter Card
Ports & slots
Management interfaceRJ 45
Size & build
Rack heightBlade
Software
Operating systemNo

Other versions of this model

5 more in the same range

Questions about this item

How much memory can I add to the 16 DDR4 slots beyond the 64 GB installed?

The board supports up to 1.5 TB of DDR4 2666 MHz registered ECC memory across the 16 slots.

Which component will hit its ceiling first when the two 18-core Xeon Gold 6154 CPUs run at 3.7 GHz turbo continuously?

The 3.7 GHz turbo frequency is the limit that appears first under sustained all-core load.

What noise and heat should I expect from the blade running all day in a populated chassis?

The blade relies on the M1000e or MX chassis fans; its dual 10 Gb network card and Matrox G200 GPU add minimal extra heat.

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