PRIME95 STABLE NECESSARY when overclocking

I have always used prime95 as a good indicator of instability when overclocking but im scratching my head at this one.

I overclocked my q9550 to 3.4ghz ran prime for 12+ hours no errors. Iv had it at that for 6 months no issues. However i decided to see how far i could push it.
I couldnt get it stable at 4ghz or 3.8ghz but at 3.6ghz everything seemed fine.
I ran prime for 4 hours. i got 2 errors? however no BSOD or freezing? Which usually happens when overclocking is unstable- ie good indicators. however i forgot to turn the overclock down and played far cry 3 for a 2 hours then did some rendering and then it was only when i benchmarked it after it was on for a full day i released that i hadnt turned it down.

In summary this seems very stable, but im confused iv always relied on prime95 to show a stable overclock......... but this seems stable, even now after 5 days iv had no errors, freezes, BSOD, lags or anything can someone offer there opinion on this?
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  1. Prime95 stresses your CPU more than most everyday activities, so it is possible to have errors in Prime95 and not in other things, but if there are errors in Prime95, your overclock isn't stable. If something so happens to stress your CPU to the limit, it will crash.

    Errors in Prime95, BSODs, or freezing are all indications of an unstable overclock.
  2. ihog said:
    Prime95 stresses your CPU more than most everyday activities, so it is possible to have errors in Prime95 and not in other things, but if there are errors in Prime95, your overclock isn't stable. If something so happens to stress your CPU to the limit, it will crash.

    Errors in Prime95, BSODs, or freezing are all indications of an unstable overclock.


    Yeh i messed about abit with the voltages iv now got it 100% stable. Iv had it on prime now for 2 hours without error and tbh thats good enough for me
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