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Green extended-ATX server board with dual LGA 771 sockets and sixteen 240-pin DDR2 slots

Supermicro

Supermicro X7DWN+ Dual LGA 771 Intel 5400 16×DDR2-800 128GB server motherboard

SKU CH-3X4J-8313A MPN X7DWN

Dual-socket server board with 16 DDR2-800 slots supporting 128 GB and Xeon processors on LGA 771

  • Dual LGA 771 sockets enable two Xeon processors
  • Intel 5400 chipset supports 1600 MHz system bus
  • 16 DDR2 slots accept up to 128 GB memory
  • DDR2 800 standard across 240-pin DIMM sockets
  • Extended-ATX form factor fits high-density server chassis

Dual-socket Xeon server motherboard

The Supermicro X7DWN+ is an Extended-ATX board built for dual Intel Xeon processors in LGA 771 sockets. It targets administrators who need a 16-slot DDR2 platform with a 128GB memory ceiling for legacy enterprise workloads.

Sustained memory and bus throughput

Sixteen 240-pin slots run DDR2 at 800 while the Intel 5400 chipset delivers front-side bus speeds of 1600, 1333 and 1066 MHz. This combination keeps all sockets fed during long compute jobs without throttling the memory subsystem.

128GB maximum memory capacity

The 128GB limit across 16 DDR2 slots is the single figure that determines whether this board fits a given deployment. Buyers who need more memory per node cannot use this platform.

Highlights

  • Dual LGA 771 sockets enable two Xeon processors
  • Intel 5400 chipset supports 1600 MHz system bus
  • 16 DDR2 slots accept up to 128 GB memory
  • DDR2 800 standard across 240-pin DIMM sockets
  • Extended-ATX form factor fits high-density server chassis

Specifications

No published specifications for this item yet.

Questions about this item

How much power does the X7DWN+ draw when both LGA 771 sockets are populated and all 16 DDR2 slots are filled?

The board supports a 1600 MHz system bus and DDR2 800 memory; actual power draw depends on the specific Xeon processors and memory modules installed.

Which components must I already have to boot this motherboard?

You need two LGA 771 Xeon CPUs, registered ECC DDR2 800 DIMMs for the 16 240-pin slots, an EPS12V power supply, and a chassis that fits extended ATX.

Will my existing PCI-X expansion cards work in the X7DWN+?

The Intel 5400 chipset provides PCI-Express slots; PCI-X cards are not compatible with those interfaces.

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