So I have a chance to get a HP Compaq Elite 8300(for less than $150)which if you didn't know, comes with an I7 3770 and is better than what I was planning on getting for $70(an Intel I7 860) but the thing is, it does not work. The person says "The pc does not have a hard drive and does not start".I mean it could be that the CPU works it's just that the PSU is failing or the motherboard is messed up or something. I'd hate to pass up on it as the CPU is a HUGE step up and the ram(( I'm assuming it has this much ram as these computers came with this much ram) is 4gb more than what I currently have).Any advise?