Quote Originally Posted by jcool View Post
Well, depends on how you define stability. If you checked your OC using prime95 on XP (the standard 32bit 25.6 prime), and it was stable, then it should and will be stable on any x64 OS as well.
However, if you only tried crunching on XP 32 vs. a 64bit OS, you might experience instabilities because your setting wasnt really any good in the first place, it just didn't show because the CPU wasn't loaded that hard with 32bit BOINC.
ouch.
there are a lot of boinc projects that are more demanding than prime95 and therfore 'produce' 'more' errors. fight aids at home is the most demanding i know, but it changed recently.

on the other hand i agree that a cpu that does no errors @ 32bit but does @ 64bit wasn't ever stable after all. but it just happened that the 32bit software did its job slightly different, putting load on a different - more stable - part of the cpu.
but from the standpoint of the user this would seem as if 64bit software was more fault provoking, magically reducing the oc-ability.