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Intel Burn Test...how much is 'enough'..? - Page 15

post #141 of 143
Quote:
Originally Posted by PizzaMan View Post
Large changes in ambient can also cause sudden problems.
Good call. This is especially true if the temperature goes up. One of the common causes for instability is too much heat!
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post #142 of 143
Quote:
Originally Posted by TwoCables View Post
I love everything you said. I think my favorite part is what I emphasized here because this is why I prefer to do the lengthy and thorough testing that I do. I mean, the same holds true for me: while my overclock might be stable enough to do let's say 6 hours of Small FFTs, 6 hours of Blend and 6 hours of the Large, in-place FFTs test, who's to say that it won't fail after the 7th hour? So, I like to make damn sure it's stable.
I think confidence in the stability of your overclock is good, since an unstable overclock also causes incorrect results & how is that proper operation of the computer? That incorrect result only needs to be at the right time to bring HDD corruption & the whole comp down, then in essence you can spend a whole lot time longer than those 3 days getting everything back to how you had it & want it. There is also how the closer to stability you are the longer it'll take for the instability to show itself, similar to how when you overclock suddenly there is that point where temps & voltage rise rapidly, as does the time for instability to show itself with a near stable overclock but as I said unstable is still unstable to me & the long testing method is for that, I had spent days testing before that usually running into an error with LinX & then Memtest once the CPU were more stable (because I lowered the CPU vTT at that point to fine tune that) But when closing in on stability LinX & Memtest were taking well over 5-6 hours before they found an error (longer than that time but I know that many hours passed for definite) Once the stability testing is done you get an idea of how well it can hold up until pressure without faltering at all, what the temps are until high load over time which is good because you know that your comp can handle the heat buildup overtime in 15 mins you could hit 50C & say that is your load temp but say the ambient temp rises aswell as your temp buildup in your case & you might actually be hitting closer to 60C after 24 hours, it's at that time good to know that it's also adaptable to being able to handle the temps in different climate so to speak. (Good if you're going to be using the overclock in both winter & summer)

Quote:
Originally Posted by TwoCables View Post
Good call. This is especially true if the temperature goes up. One of the common causes for instability is too much heat!
I agree, for me it's currently winter so the ambient temp is rather low however with the testing I done above the room temperature were at 28C at one point, but stayed consistently above 25C because of the heat the comp were putting out, while it'll get warmer in the summer than that even; With LinX after 72 hours of Prime only 1 of those cores hit 71C & no other core went over 70C in that entire run with the temp most of the time being 65-69C in cores, Everest reported CPU temp as 53C in those conditions if all that is indeed accurate or generally close then the head-room for temp is actually pretty good & how I like it.
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post #143 of 143
With a overclock u cant be 100% sure enough...there are no 100% in my opinion, only 99,99%..
had a week ago again a situation - i tested my ram with Memtest86+ a error showed up in the 111 run! so what now, tweak a setting and then rerun memtest again for maybe 6-10days straight to be 100% sure? smile.gif a lot is happening in the case, a lot is changing every few months! just backup files more often everybody and re-run the tests after a while 2be up to date smile.gif
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