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How many hours if Prime do I really need? - Page 4

post #31 of 126
As a PC gamer this is what I do:

1. Run small fft for 2-3 hours (or replace with IBT 20-30 @ high or max)
2. Run large fft for 2-4 hours (I found that worker/s would fail within the first 30 mins if OC is unstable)

If it's stable, then I'll call it stable and proceed playing games. If within the week nothing bad happens, that it's stable as far as I'm concerned biggrin.gif

To me, there is no absolute stable OC, there are always external factors that intervene and are out of our control. As long as we try to minimize instability, then we're ok. It's just like auditing, an auditor cannot absolutely attest to the fairness of the financial statements, but can only REASONABLY attest to its fairness.
Edited by pipnasty - 1/11/11 at 10:35pm
post #32 of 126
Here is a fact: on the default 15 minute iteration length, it takes 10 hours to pass all the iterations in prime95 blend test. To me, 10 hours of blend is all that is needed (as far as blend test goes.) I personally run 20 passes of LinX and usually 6-8 hours of small fft as well to ensure stability.
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post #33 of 126
Run a few hours of OCCT: Linpack or IBT.

You put more stress on your overclock that way (supposedly). And you don't have to grow old waiting for P95 to fail.
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post #34 of 126
Quote:
Originally Posted by KingT View Post
I prefer at least 12h of each test in Prime95 error free to consider my OC "stable"

But no OC is 100% stable that`s for sure..

I`d say you`re OK..

CHEERS..
u can get a oc 100% stable
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post #35 of 126
Thread Starter 
Quote:
Originally Posted by pioneerisloud View Post
If you're running the standard "blend" test, then its not stable. I can almost promise it. You put little to no stress on the memory and memory controller that way. You need to hit "blend", and then "custom" and force it to use at LEAST 3/4 or more of your total RAM. I usually force 7GB usage out of 8GB. If I had 12GB, I'd force 11GB usage. And at LEAST a 12 hour run.
I am running the small ftt test now, is that ok to run for 12 hours to ensure stability?
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post #36 of 126
Quote:
Originally Posted by Wicki View Post
u can get a oc 100% stable
100% is predictive, you cannot predict the future and furthermore there will be a day that your computer will fail, you can only say that your OC is Stable beyond reasonable doubt.
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post #37 of 126
Thread Starter 
That's deep man. So, 12 hours small fft is "stable beyond resonable doubt" ?

And maybe 6 hours of memtest?
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post #38 of 126
Quote:
Originally Posted by frW View Post
That's deep man. So, 12 hours small fft is "stable beyond resonable doubt" ?

And maybe 6 hours of memtest?
My opinion on the matter is that if it is stable for whatever you use your computer for it is stable, no benchmark or stress test can perfectly replicate how you use your hardware and cover all the bases. I've had overclocks that are only stable for 8 hour P95 and stable during my normal computer use but will randomly sometimes have an error in the first 2 minutes.

That said, nobody wants to run into unexpected hiccups even when browsing the internet and aforementioned stress tests are very useful; what you think is necessary is completely up to your discretion.

However, if you are overclocking for the purposes of comparison with other people it is a good idea to have a definitive metric of stability. In short, I don't have an answer for you, reasonable doubt is very subjective.

Note: I think 8 hours of prime95 combined with about 20 runs of IBT with maximum RAM replicates real world use (but I don't do anything particularly sensitive to corruption/crashes).
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post #39 of 126
Just out of curiousity and somewhat sidetracking this thread, what do you guys think of IntelBurnTest as a stability test?
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post #40 of 126
Thread Starter 
Quote:
Originally Posted by Swift Castiel View Post
Just out of curiousity and somewhat sidetracking this thread, what do you guys think of IntelBurnTest as a stability test?
Oh good question, I second that.
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