How to choose a motherboard for a 1u server?

Question

motherboards

A nice lot was found on Avito with a 1u server from ibm x3250, the question arose of how expensive it can be to replace a motherboard and how difficult it is to choose a motherboard for a server in general. If on another, more modern socket, then it's not scary. Maybe someone has experience in this matter. There is almost no information on this topic on Google.

Answer 1

At least look at what mothers are supported by this corps

Answer 2

replacing the mainland is always crap and tin, especially on old platforms
on Avito, a bunch of platforms already with working mothers for inexpensively in a large selection, I myself once sold them there after the project was closed.