Im not too sure these cpus were junk. They were brand new boxed cpus, both unopened in sealed boxes and in their sealed plastic containers. The containers all have anti tamper mechanisms that were intact. I don't know how sealed cpus could be tampered with in such a way as to render them inoperable. The cpu that ran the diagnostic program passed all the cpu bug checks, its just a little too messed up to run the os. Both cpus are from the same production lot and I think that has something to do with it. The seller's ebay feedback was very good. I'm going to talk to the seller and see what they say since and if they can provide a means to get them exchanged.