Server Parts, Racks and Components

Start with the platform: socket, memory type and board

A server build is decided by the processor socket. The board, the CPU and the memory all have to agree: an LGA 4677 board takes a matching Intel Xeon, and an SP5 board takes a matching AMD EPYC. Server boards usually take registered ECC modules, which are not interchangeable with desktop DIMMs, and DDR4 and DDR5 modules will not fit each other's slots. Settle these three first, then add RAID cards, data center SSDs or accelerator cards that suit the free PCIe slots.

Rack units, depth and what the rack must carry

Rack equipment is measured in U, where 1U is 1.75 inches of height inside a 19-inch-wide frame. Count the U of every device, add space for cabling and airflow, and check the rack's depth against your deepest server. Wall cabinets suit a few network devices, floor racks suit full servers, and open frames trade protection for access. Browse server-grade motherboards to begin a build or rack cabinets and shelves to house it.

Questions about Server Parts, Racks and Components

Can I use desktop memory in a server board?

Usually not. Server platforms are built around registered ECC modules that add error correction and electrical buffering. Desktop modules lack the buffering and may not be accepted at all, so match the memory type named in the board's specifications.

What is the difference between a server CPU and a desktop one?

Server processors usually offer more cores, more memory channels, ECC support and more PCIe lanes. Most fit server-only sockets, so the board, cooler and memory must be matched to the chosen socket, though some entry models share a desktop socket.

How do I know if a part will fit my chassis?

Check the form factor in U or the board size, then compare slot count, cooler height and card length with the chassis specifications. Parts for 1U or 2U cases are limited in height, so a tall heatsink or full-height card may not fit.