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Silver 1U rack server front with eight 2.5-inch drive bays and bezel

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6142 2.6GHz 16-Core 768GB DDR4 8x 300GB SAS H730P

SKU CH-A6G9-8XF95

1U rack server with dual 16-core Xeon Gold 6142 CPUs, 768GB DDR4, PERC H730P RAID controller, eight 300GB 10K SAS drives, quad-port 1GbE/10GbE networking, iDRAC9 Enterprise and redundant 750W PSUs

  • TypeRack
  • Rack Height1U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.60 GHz
  • CPU SocketLGA 3647
  • Dual Xeon Gold 6142 CPUs deliver 32 cores at 2.6 GHz base clock
  • 768 GB DDR4 ECC memory across 24 slots supports large workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Eight 300 GB 10K SAS drives provide fast 2.5-inch storage
  • Quad-port X520/I350 card adds two 1 GbE and two 10 GbE SFP+ links

Dual-socket 1U density

The Dell PowerEdge R640 packs two Intel Xeon Gold 6142 processors, each with 16 cores at 2.6 GHz, into a single rack unit. It ships with 768 GB of DDR4 registered ECC memory across all 24 slots. Eight 300 GB 10K SAS drives and a PERC H730P controller provide internal storage. Dual 750 W platinum power supplies and iDRAC9 Enterprise complete the package.

Upgrade from single-socket or smaller memory

Moving from a single-processor server doubles the core count to 32 and raises the memory ceiling to 3 TB. The jump is worth it when workloads such as virtualisation, database or high-performance computing need more parallel threads and larger datasets than a single socket can address. The board already holds the maximum of two processors, so further CPU expansion requires a new chassis.

12 Gb/s SAS controller and 10K spindle limits

The PERC H730P operates at 12 Gb/s over SAS and SATA, capping throughput to the speed of the installed 10 000 RPM drives. Random I/O will be bounded by mechanical latency, and sequential transfers cannot exceed the controller's 12 Gb/s lane rate. The network daughter card adds two 10 Gb SFP+ ports, but the 1 GbE links remain at their fixed line rate.

Highlights

  • Dual Xeon Gold 6142 CPUs deliver 32 cores at 2.6 GHz base clock
  • 768 GB DDR4 ECC memory across 24 slots supports large workloads
  • PERC H730P controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Eight 300 GB 10K SAS drives provide fast 2.5-inch storage
  • Quad-port X520/I350 card adds two 1 GbE and two 10 GbE SFP+ links

Specifications

BrandDELL
SeriesPowerEdge R640
ModelR640
TypeRack
Rack Height1U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.60 GHz
CPU SocketLGA 3647
Number of CPU Cores16-Core Processor
# of Processors Installed2
MAX Processors2
ChipsetIntel C620
Installed Memory Size768GB
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

What rack depth and rail kit are required for the 1U R640?

The server is a 1U rack chassis and ships with Ready Rails for tool-less mounting in a standard four-post rack.

Which BIOS step is often missed when installing the dual Xeon Gold 6142 processors and 24 DDR4 DIMMs?

After seating both CPUs and all 24 memory modules, enter the BIOS to verify the 2.6 GHz clock speed and 2666 MHz memory frequency before configuring RAID.

When should the PERC H730P controller battery and the 300 GB 10K SAS drives be replaced?

Replace the RAID controller battery every 3 to 5 years and monitor the 300 GB SAS drives via iDRAC 9 Enterprise SMART alerts for predictive failure.

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