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12+hour prime. Is it really necessary? - Page 7

post #61 of 63
The longer you run a stress test for, the higher the chance is of the chip being close to 100% stable.

That doesnt mean that if you pass 12hours, you will have a 100% chance of passing F@H for 12hr stints at every occasion, but will mean you are more likely to get through it than if you ran the test for 1hour.

Ive had failures at the 10hour mark, so now i do 12hours whenever possible (of course this not a valid reason, as i explained above, but for satisfaction).
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post #62 of 63
Quote:
Originally Posted by jasjeet View Post
The longer you run a stress test for, the higher the chance is of the chip being close to 100% stable.

That doesnt mean that if you pass 12hours, you will have a 100% chance of passing F@H for 12hr stints at every occasion, but will mean you are more likely to get through it than if you ran the test for 1hour.

Ive had failures at the 10hour mark, so now i do 12hours whenever possible (of course this not a valid reason, as i explained above, but for satisfaction).
This. Each people has to decide how long and what programs to run.
If you are happy with 3 hours of prime then so be it.
Not like it'll give ME bsod.
If people only use their comp for some web games and emailing/browsing, then minimum stress tests are fine I guess.
But for people who does folding 24/7 or do play intensive games with fraps running with 25 tabs of browser opening with some back ground encoding going on, your system better be 120% stable.
But for people who runs prime blend for less than 8 hours, it is kind of meaningless.
Since the prime95 intensive work load starts around 8-10 hours into it.
Do ffts 1344 and 1792 runs with 90% free ram used.
This way you don't have to wait around for 8+ hours and check the stability quickly.
For 2nd Gen SB, those ffts are tougher to pass than LinX/IBT with AVX.

Also people who rely on LinX/IBT, please note what GFlops score you are getting.
Even if you pass the test fine, you might get lower GFlops score especially at higher RAM is tested.
You always must score higher when you OC higher.
Also each runs GFlops score shouldn't fluctuate more than 2 GFlops.
So even if you pass the tests, it doesn't mean it is stable until your GFlops score are consistent.
Edited by Tunagoblin - 8/21/11 at 10:25am
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post #63 of 63
Quote:
Originally Posted by Blameless View Post
Bad analogy.

It's more like running the car at redline for five hours, and have it be in the same apparent condition as before you tested it, to make sure it can run for the next 5,000 without maintenance or failure.
Worse analogy.

If it's still the same after, why all the stories of folks smoking their rigs on stress tests, plus all the warnings in the software. I believe stress tests take their toll on parts.
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