Server CPUs: Xeon and EPYC.

Most server CPUs on the secondary market are pulls: processors that came out of working, decommissioned machines. They trade by exact model, meaning not “a Xeon Gold” but which Xeon Gold, since one suffix changes the socket, the core count, or both. Intel parts also carry a five-character spec code on the heat spreader that pins down the exact variant; include it when you have it.

One wrinkle the used market learned the hard way: AMD EPYC processors can be permanently locked to one vendor's boards the first time they boot, so Dell-locked chips are common in pulled lots. A locked CPU is fine in the right platform and useless in the wrong one. Buying, tell us what board it is going into; selling, say whether your lot is locked if you know.

CPUs usually travel with the rest of a decommission. If you are clearing whole machines, servers and chassis and the memory inside them are quoted alongside, or send the whole list and we price it line by line.