I bought a retired dual-socket Xeon HP 1U server on ebay with 128GB of ECC RAM for like $50 on ebay a while back. It only had one CPU, but upgrading it to two w

I bought a retired dual-socket Xeon HP 1U server on ebay with 128GB of ECC RAM for like $50 on ebay a while back. It only had one CPU, but upgrading it to two would be very cheap. Sure, it's hulking, obsolete, and very loud beast, but it's hard to beat the price to performance ratio there... just make sure you don't put anything super valuable on it because HP's old proliant firmware likely has a ton of unpatched critical vulnerabilities (and you'd need an HP support plan to download patches even if they exist)