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== Haswell-E Overclock Leaderboard & Owners Club == - Page 1360

post #13591 of 22287
h.265 encode with Handbrake, and make the encode last 4 hours (with a 2 pass). If it passes, you're good to go for all practical intents and purposes. Give it something "natural" like a video encoding task instead of "NUMBERS MASON, WHAT DO THE NUMBERS MEAN, CRUNCH THE NUMBERS MASON". Prime95 is yuck - it's just a test designed to draw maximum current through the CPU, not really a daily test of real life stability. The best "natural" test is a video game.
post #13592 of 22287
Quote:
Originally Posted by Desolutional View Post

h.265 encode with Handbrake, and make the encode last 4 hours (with a 2 pass). If it passes, you're good to go for all practical intents and purposes. Give it something "natural" like a video encoding task instead of "NUMBERS MASON, WHAT DO THE NUMBERS MEAN, CRUNCH THE NUMBERS MASON". Prime95 is yuck - it's just a test designed to draw maximum current through the CPU, not really a daily test of real life stability. The best "natural" test is a video game.

Good point, will give that a go today, want to get back into MGS V, haven't had the time, though it barely stresses the CPU.
I finally matched your overclock, just not the cache (no OC socket), I'm guessing you're running 1.24v because you're cache is a lot higher (Mines only 3.3Ghz).
post #13593 of 22287
Quote:
Originally Posted by schoolofmonkey View Post

I take it you're not running a CPU/FPU/Cache stress test, because if you're stressing the FPU there's no way you're doing anything else at the same time. biggrin.gif
Yep and if it freezes in Cinebench you don't have a stable machine at all..lol..

Think I got the SA sorted, I did take 1.05v to get it stable, running a memory test at 0.95v lead to errors within the first 5 minutes, with 1.05v ran all night 1200% HCI Memory test and no errors (12 instances@1200mb).
Yet no post code 55 with the lower voltage, guess there's no sure fire way of testing your SA.

Try even lower wink.gif You will have dead spots. I generally lower 0.01 to 0.05 at a time.
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post #13594 of 22287
Quote:
Originally Posted by cookiesowns View Post

Try even lower wink.gif You will have dead spots. I generally lower 0.01 to 0.05 at a time.

Will do, I just dropped it to 1.03v, sucks there's no sure fire test to see if your SA is off..lol
post #13595 of 22287
Quote:
Originally Posted by schoolofmonkey View Post

I take it you're not running a CPU/FPU/Cache stress test, because if you're stressing the FPU there's no way you're doing anything else at the same time. biggrin.gif

I left everything at the default settings in Aida64 and at 4Ghz | 1.058v (says that when stressing with Aida64 but shoots back up to 1.068v when CPU isn't being stressed *Shrugs*.). At first I was stressing it while watching some TV shows/browsing the net (all be it a lot slower than normal and with low memory warnings). But once I went to bed it was purely just Aida64 running and when I woke up it was still running. How long should I leave it running though before I can call my OC stable?
post #13596 of 22287
Quote:
Originally Posted by Tobe404 View Post

I left everything at the default settings in Aida64 and at 4Ghz | 1.058v (says that when stressing with Aida64 but shoots back up to 1.068v when CPU isn't being stressed *Shrugs*.). At first I was stressing it while watching some TV shows/browsing the net (all be it a lot slower than normal and with low memory warnings). But once I went to bed it was purely just Aida64 running and when I woke up it was still running. How long should I leave it running though before I can call my OC stable?

These are the settings to test your overclock, it's better to test ram separately.

post #13597 of 22287
Quote:
Originally Posted by schoolofmonkey View Post

Will do, I just dropped it to 1.03v, sucks there's no sure fire test to see if your SA is off..lol


I played around a bit this morning with HWBOTx265 seeing how it would react while tweaking my SA Voltage numbers. Sure seemed to confirm a few dead spots I found earlier.

Seems my system becomes unstable at .98 SA volts and up to about 1.01 (BSOD@.98). But springs back to life at 1.02.
I have been running .96 for a while now, very stable in all aspects, never a boot error

But I did notice less deviation in the HWBOTx265 Avg fps score results with .94 set in bios vs .96
I will give .94 a run for awhile and see how it goes.

But yea, dialing an optimal SA Voltage number can take some patience it seems


Edited by Cutbait - 10/17/15 at 9:00pm
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post #13598 of 22287
Quote:
Originally Posted by Jpmboy View Post

VSA can take longer to tune that most any other voltage, simply because the test for "stability" is not all that straight forward... mostly routine cold and warm start-ups/restarts. IME. Unless,
Does anyone know a stress test that can single out VSA?

Incorrect vccsa will usually prompt errors in memory intensive stress tests eventually...but honestly, just disconnecting all of my drives and rebooting the system in different ways (mix of warm and cold) and at different ambient temperatures narrows down vccsa errors faster than pretty much anything else I've tried.
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post #13599 of 22287
I've notice doing what @Cutbait has been doing does show visable results.
I'm running a SA of 0.94v yielded the best results in x265, only 1 point apart, I tried 1.05v and worked backwards, some runs were 10fps off, some 4 - 5fps, but 0.94 seemed the best.

I'll move onto the next step that @Blameless suggested and see what happens, funny enough I'm yet to have a memory error thrown, just little performance degrees or increases.

post #13600 of 22287
Quote:
Originally Posted by schoolofmonkey View Post

funny enough I'm yet to have a memory error thrown, just little performance degrees or increases.

Cache ECC errors usually present as performance loss before more obvious problems, but there are so many factors that can cause small variances in the x265 bench times that it's going to take a lot to prove that vccsa was the key factor.
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