Key components like CPU, GPU, and RAM are mostly safe to buy used, and they can lead to significant savings. Do some research to figure out what parts you should buy and how much they should cost ...
I have some DL380p G8's we are going to drop new CPUs in. HP's part/ordering guide is hurting my head. I'm more of a Dell guy. The QuickSpecs PDF says that if you are ordering 2 CPUs to get one part ...