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Silver 3U rack server front with eight 2.5 inch drive bays and bezel

DELL

DELL PowerEdge R940 3U Rack Server 4x Xeon Gold 6142 2.6GHz 16-Core 128GB DDR4 8x 2.5" Trays

SKU CH-156T-8R99Y

A 3U rack server with four 16-core Xeon Gold 6142 processors at 2.6 GHz, 128 GB DDR4 ECC memory, PERC H730P RAID controller, eight 2.5-inch SAS/SATA drive trays.

  • TypeRack
  • Rack Height3U
  • Redundant Hot-swap PowerYes
  • CPU TypeIntel Xeon
  • CPU Speed2.60 GHz
  • CPU SocketLGA 3647

Installed Memory Size 128GB

HDD None

CPU Model Gold 6142

  • Four Xeon Gold 6142 processors deliver 64 total cores for heavy compute workloads
  • 128 GB DDR4 2666 MHz ECC memory supports large datasets and virtualisation
  • PERC H730P 2 GB controller enables RAID 0 1 5 6 10 50 60 with battery-backed cache
  • Eight 2.5 inch SAS SATA drive trays provide flexible storage expansion in 3U
  • Dual 1600 W platinum power supplies and iDRAC9 Enterprise ensure resilient remote management

Mission-critical compute density

The Dell PowerEdge R940 packs four Intel Xeon Gold 6142 processors at 2.6 GHz with 3.7 GHz turbo into a 3U rack chassis. Each CPU delivers 16 cores, giving 64 cores total. The system ships with 128 GB of DDR4 2666 MHz registered ECC memory across 48 slots and supports up to 6 TB maximum capacity.

Suits dense virtualization and database clusters

Organisations running heavy multi-threaded workloads, in-memory databases or large virtualisation farms gain from the four-socket design and high core count. Buyers who need only single-socket performance, fewer than 64 cores or a smaller rack footprint should consider alternative platforms. The eight 2.5-inch SAS/SATA trays leave drive selection open.

Four-socket Xeon Gold 6142 configuration

The defining specification is the factory-installed quartet of Xeon Gold 6142 CPUs, fixing the platform at 64 cores and 128 threads with LGA 3647 sockets. This determines licensing costs, memory scaling across 48 DDR4 slots and the 3U power envelope supplied by dual 1600 W platinum PSUs.

Highlights

  • Four Xeon Gold 6142 processors deliver 64 total cores for heavy compute workloads
  • 128 GB DDR4 2666 MHz ECC memory supports large datasets and virtualisation
  • PERC H730P 2 GB controller enables RAID 0 1 5 6 10 50 60 with battery-backed cache
  • Eight 2.5 inch SAS SATA drive trays provide flexible storage expansion in 3U
  • Dual 1600 W platinum power supplies and iDRAC9 Enterprise ensure resilient remote management

Specifications

BrandDELL
SeriesPowerEdge R940
ModelR940
TypeRack
Rack Height3U
Redundant Hot-swap PowerYes
CPU TypeIntel Xeon
CPU Speed2.60 GHz
CPU SocketLGA 3647
Number of CPU Cores16-Core Processor
# of Processors Installed4
MAX Processors4
ChipsetIntel C620
Installed Memory Size128GB
Memory TypeDDR4
Max Memory Capacity6TB
Number of Memory Slots48
Storage ControllerDell Perc H730P 2GB Controller
HDD InterfaceSATA/SAS
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 13 PCIe Gen 3 Slots, 3x PCIe x8, and 10 x PCIe 3.0 x16 slots
Management PortRJ 45
Operating SystemNo
Features8 x 2.5" SATA/SAS Hot-Plug Drive Bays

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I choose the 128GB DDR4 configuration or expand toward the 6TB maximum?

The system ships with 128GB across 8 slots; 40 slots remain free for DDR4 2666MHz registered ECC modules up to 6TB total.

What does the 2.6GHz base and 3.7GHz turbo mean when all four Xeon Gold 6142 CPUs are loaded?

Each 16-core processor runs at 2.6GHz base and can boost to 3.7GHz depending on thermal headroom and core count active.

How does the PERC H730P 12Gb/s SAS/SATA controller limit drive performance in the eight 2.5" trays?

The controller supports RAID 0/1/5/6/10/50/60 and pass-through at 12Gb/s per SAS lane, capping each tray to that throughput.

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