I had some massive stability problems with one of my processors, and the other one was in a close second. However, even when one would load windows fine and do just about anything without problem, it consistantly had Early Unit Ends, whereas the second one would do fine (I see one early Unit End in the extended log) until windows just plain wouldn't load anymore.
Is there a method to this madness? Both machines are 99% stable now, no problems running anything in the past few days now on either machine.