Originally Posted by timAHH
Think of it this way. Would this happen at stock speeds? No? Then you're not stable.
Originally Posted by Nickzorz91
I don't understand how this is a hard concept... ONE HUNDRED PERCENT stability means you'd never crash.
These posts really summarize it. A CPU is in working order when it never faults. If it faults, it's not stable, and it's as simple as that. It may have no erred until after about eleven hours, but that's not the point. The point is, it erred. It's not stable. It may have taken eleven hours in that case, but that instability could show up any time. It is not stable, and that's the end of it.
I had what I called a "100% boringly stable" PC for over a year, maybe a year and a half. Back when I was messing with it, it did Prime 95 overnight (can't recall how many hours exactly). It never crashed in games, so I was stable... until a year and a half later, surprise, I had a crash/BSOD during The Sims 3, which ended up pointing to the CPU. I didn't know of Intel Burn Test when I was doing my testing, but someone recommended it, and it caught an instability after two runs (on the seventh pass). Degradation? Never stable all along? Small mix of both?
Either way, it was no longer in a state I could call stable. I bumped Vcore three notches (never again just one, that "right on the line" is risky business itself). Now, it's stable again.
A CPU is deemed stable simply when it's not proven to be unstable. You could run it for one hour or one thousand, it's stable unless/until it's unstable. I'd run some good stress tests for more than a hour, of course, but the point is, it didn't matter when it happened. Your CPU isn't consistent. It's unstable. I'd bump it up two notches and put it through Intel Bun Test, then Prime 95 over night again. If it passes then, I'd say you're good.Edited by Princess Garnet - 6/20/11 at 1:27am