Supermicro X11SSH-F-O Micro ATX Server Motherboard: specs and who it suits

The Supermicro X11SSH-F-O is a Micro ATX motherboard for entry-level servers and workstations. It uses the LGA1151 socket and the Intel C236 chipset, and it's built around features that matter in an always-on machine: ECC memory, plenty of SATA ports and two network connections. This page walks through what each spec means.

Socket and chipset

LGA1151 is Intel's socket for its Skylake-generation and later desktop and entry-level server processors, and the C236 is the server-oriented chipset that goes with it. Which processors the board accepts depends on the BIOS and the chip's own support for this chipset, so check Supermicro's compatibility list before you pick a CPU.

Memory: ECC and capacity

The board has four 288-pin DDR4 DIMM slots, supporting DDR4-2133, 1866 and 1600 modules. The listing specifies ECC unbuffered memory, with a maximum capacity of 64GB. ECC (error-correcting code) memory can detect and correct single-bit errors, which is why it's common in servers and file storage machines that run for long periods. Unbuffered means ordinary-style modules rather than the registered type used in large servers. ECC support also depends on the processor you choose.

Expansion slots

There's one PCI-Express 3.0 x16 slot that runs at x8, and two PCI-Express 3.0 x8 slots, one of which runs at x4. That's enough for a storage controller, a network card or a modest graphics card. Because the slots share lanes from the processor and chipset, it's worth reading the manual before filling all of them.

Storage

Eight SATA3 ports sit on the board, with support for RAID 0, 1, 5 and 10. In general, RAID 1 mirrors drives for redundancy, RAID 5 spreads data and parity across three or more drives, and RAID 10 combines mirroring and striping. RAID does not replace backups. Eight ports make this board well suited to home servers and network storage builds.

Networking and remote management

Two Intel I210-AT Gigabit Ethernet controllers provide dual LAN, which can be used for separate networks or for redundancy. The "F" in the model name typically indicates a board with remote management. The listing doesn't detail it, so confirm on Supermicro's specification sheet whether this board has IPMI and what it offers.

Size

The Micro ATX form factor is 9.6 by 9.6 inches (24.4 by 24.4 cm), which fits many compact and mid-size cases. The listing gives the item weight as about 1 lb.

Who it suits

It suits people building a small file server, virtualisation host, backup machine or workstation who want ECC memory and dual Gigabit networking. It's an older platform built on DDR4-2133, so it's not meant for someone looking for the newest processors or fastest memory.

What to check before you buy

• Processor: confirm which LGA1151 CPUs the board supports and whether the BIOS needs an update for them.
• Memory: buy ECC unbuffered DDR4 modules, and check the module list.
• Case and cooler: check that the case takes Micro ATX and the cooler fits the socket.
• Power: check the connectors your power supply needs, per the manual.
• Remote management: confirm what is included with the "F" version.

The short version

• An LGA1151, Intel C236, Micro ATX server motherboard.
• Four DDR4 slots with ECC unbuffered support, up to 64GB.
• One PCIe 3.0 x16 (x8) and two PCIe 3.0 x8 slots.
• Eight SATA3 ports with RAID 0, 1, 5 and 10.
• Dual Intel I210-AT Gigabit Ethernet.

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