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Green rectangular server motherboard with silver CPU socket, eight black memory slots, multiple silver PCIe slots

Supermicro

Supermicro X11SRA-RF server motherboard

SKU CH-YZ82-P59V8 MPN X11SRA-RF

Single-socket LGA 2066 board supports Xeon W CPUs up to 140 W, 256 GB DDR4-2666 RDIMM or 512 GB LRDIMM, three PCI-E 3.0 x16 slots, dual M.2 22110, six SATA3 and Intel I210-AT plus Aquantia 5G LAN

  • Supports up to 256 GB DDR4-2666 registered ECC memory in 8 slots
  • Intel C422 chipset provides six SATA3 ports with RAID 0, 1, 5, 10
  • Three PCI-E 3.0 x16 slots deliver 48 lanes for high-bandwidth add-in cards
  • Dual Intel and Aquantia LAN controllers give 1 GbE and 5 GbE connectivity
  • Two M.2 22110 M-key slots with PCI-E 3.0 x4 for fast storage arrays

Single-socket LGA 2066 workstation board

The Supermicro X11SRA-RF is a server motherboard built for a single Intel Xeon W-series processor in the LGA 2066 socket. It supports CPUs up to 140 W TDP and the Intel C422 chipset. The board targets workstation and entry-server builds that need high core counts and large memory capacity in a single-socket layout.

Suited for ECC memory and multi-GPU compute

This board suits users who need registered ECC DDR4 memory up to 256 GB in RDIMM or 512 GB in LRDIMM across eight slots at 2666 MHz. It also suits builds that require three full-length PCI-E 3.0 x16 slots fed by 48 lanes from Skylake-W CPUs. Buyers who need dual-socket scaling, 10 GbE networking or more than six drive ports should look at a different platform.

48 PCI-E lanes from the CPU

The single specification that decides fit is the 48 PCI-E 3.0 lanes provided by the Skylake-W processor. These lanes wire the three x16 slots and the two M.2 x4 interfaces directly to the CPU. If the chosen Xeon W model offers fewer lanes, the rear x16 slots will negotiate down and the M.2 devices may share bandwidth with other peripherals.

Highlights

  • Supports up to 256 GB DDR4-2666 registered ECC memory in 8 slots
  • Intel C422 chipset provides six SATA3 ports with RAID 0, 1, 5, 10
  • Three PCI-E 3.0 x16 slots deliver 48 lanes for high-bandwidth add-in cards
  • Dual Intel and Aquantia LAN controllers give 1 GbE and 5 GbE connectivity
  • Two M.2 22110 M-key slots with PCI-E 3.0 x4 for fast storage arrays

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the board is running correctly after installing a Xeon processor and memory?

The system should POST and show the full 256 GB or 512 GB capacity across the eight DDR4-2666 slots, and the BIOS should report the single LGA 2066 socket and Intel C422 chipset.

What comes with the motherboard and what must I source separately?

The board provides the LGA 2066 socket, eight DDR4 slots, three PCI-E 3.0 x16 slots, one PCI-E 3.0 x4 slot, two M.2 22110 M-Key connectors, six SATA3 ports, Intel I210-AT and Aquantia AQC108 LAN; CPU, memory, storage and chassis are not included.

Which memory capacity should I choose between the 256 GB RDIMM and 512 GB LRDIMM limits?

Select 256 GB with standard RDIMMs for typical workloads; move to 512 GB using LRDIMMs only when the application requires the larger registered ECC footprint.

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