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Dell PowerEdge R640 1U rack server silver front bezel eight drive bays

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6148 2.4GHz 20 Core 64GB DDR4 8x 1.2TB SAS H730P

SKU CH-29Q9-QXEQR

Dual 20-core Xeon Gold 6148 at 2.4 GHz, 64 GB DDR4, eight 1.2 TB SAS drives on PERC H730P, X520/I350 networking, iDRAC9 Enterprise, redundant 750 W PSUs in 1U rack

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.40 GHz
  • CPU SocketLGA 3647
  • Dual Xeon Gold 6148 20-core CPUs deliver 40 total cores for heavy compute
  • 64GB DDR4 2666MHz ECC memory supports large datasets with room to expand to 3TB
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 for flexible data protection
  • Eight 1.2TB 10K SAS drives provide high-speed storage in a dense 1U form
  • iDRAC 9 Enterprise plus quad-port 1GbE/10GbE networking gives remote management and high throughput

Dual-socket 1U rack server for dense compute

The PowerEdge R640 packs two Intel Xeon Gold 6148 processors, each running 20 cores at 2.4 GHz with a 3.7 GHz turbo frequency, into a single rack unit. Sixty-four gigabytes of DDR4 registered ECC memory across four 16 GB modules support virtualization clusters, database nodes, and high-performance workloads that demand core density and memory reliability. Redundant 750-watt platinum power supplies and included rails simplify deployment in standard cabinets.

PERC H730P controller with eight 1.2 TB SAS drives

A Dell PERC H730P 2 GB controller manages the eight 2.5-inch 10 K SAS drives, delivering 12 Gb/s throughput and hardware RAID levels 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. The controller’s onboard battery protects cached writes during power loss, making the array suitable for transactional databases and mixed read-write workloads that require data integrity.

Sustained throughput under multi-core load

With all 40 cores active, the dual Xeon configuration maintains clock speeds near the base 2.4 GHz thanks to the 1U chassis airflow design and redundant cooling. The quad-port network daughter card provides two 1 GbE and two 10 Gb SFP+ links for continuous east-west traffic, while iDRAC 9 Enterprise enables remote monitoring and firmware updates without interrupting production services.

Highlights

  • Dual Xeon Gold 6148 20-core CPUs deliver 40 total cores for heavy compute
  • 64GB DDR4 2666MHz ECC memory supports large datasets with room to expand to 3TB
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 for flexible data protection
  • Eight 1.2TB 10K SAS drives provide high-speed storage in a dense 1U form
  • iDRAC 9 Enterprise plus quad-port 1GbE/10GbE networking gives remote management and high throughput

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 Size64GB
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

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Questions about this item

How much memory bandwidth does the 2666 MHz DDR4 actually deliver in this 24-slot system?

The 24 DIMM slots run DDR4 at 2666 MHz, giving each channel its rated throughput; total bandwidth scales with how many of the 24 slots are populated.

What RAID levels can the PERC H730P 2 GB controller support on the 12 Gb/s SAS backplane?

The H730P handles RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through on the 12 Gb/s SAS backplane, limited by the eight 2.5-inch drive bays.

What rack depth do the included Ready Rails need for this 1U server?

The supplied Ready Rails mount the 1U chassis in standard four-post racks; the rail kit adjusts to common depths without extra brackets.

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