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Haswell Overclocking Guide [With Statistics] - Page 333

post #3321 of 19539
Not sure about Fritz Chess, but the chess programs do seem like pretty good real-world type stress tests. I think running that or doing some x264 encoding will give you a reliably stable system, depending on your intended use. That's a highly opinion-based question though.
post #3322 of 19539
I've got a rock solid core clock and am bringing up uncore. I'm using x264, C.B, Pi & XTU bench so i can stress and also see whats happening performance wise.

So far so good but i think i've gone past or at an uncore multi that failed in a 9hr XTU stress. Once x264 fails i'll knock it back down a notch and test overnight with XTU. Curious to see where they stand in relation to each other. One bonus is x264 takes way less time than the others! (4 runs, 2 passes...or am i doing it wrong?)
post #3323 of 19539
Quote:
Originally Posted by Forceman View Post

Not sure about Fritz Chess, but the chess programs do seem like pretty good real-world type stress tests. I think running that or doing some x264 encoding will give you a reliably stable system, depending on your intended use. That's a highly opinion-based question though.

I just set back to 4.6ghz anyway,4.6ghz is a good overclock really,when i have had the chip a while i will de-lid and go higher.Dont want to unnessarily degrade my chip early and temps are lower at the 1.230v.1.380v not sure about 24/7 til de-lid.Very happy with my CPU though,i think my Asrock Z87E-ITX could be holding her back aswell,does'nt like manual settings very much at all,took some work to get here.
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post #3324 of 19539
I have a similar performing cpu as you Jason. I was 1.2v for x46 but i think mine must be scaling better as i'm at 1.25v for x48. I ended up deciding to delid when Prime started just nudging over 90deg. Well worthwhile as i've dropped temps by 20deg+. Was a bit of a no brainer having voltage headroom but temp restricted!
post #3325 of 19539
Quote:
Originally Posted by Doug2507 View Post

I have a similar performing cpu as you Jason. I was 1.2v for x46 but i think mine must be scaling better as i'm at 1.25v for x48. I ended up deciding to delid when Prime started just nudging over 90deg. Well worthwhile as i've dropped temps by 20deg+. Was a bit of a no brainer having voltage headroom but temp restricted!

If i de-lid i may get the ROG Impact.Your chip seems golden,mine is ok/good,as your say though the voltage scaling is very all over the place,funny thing is some chips seem to run hotter at lower voltages,i guess its about leakage?I think with a de-lid and a better mobo i could get 4.8/maybe 4.9 prime stable.Just happy to be at 4.6 though,brought the chip day 1,then saw reviews and was thinking i would'nt hit 4.3,lol.

Also what mobo you using?
And what VCCIN?
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post #3326 of 19539
After approximately 50 bsods during the entire weekend, I finally got my 4770K stable at 4.6. My settings below.

46x100
vcore: 1.300
vccin: 1.950
uncore multi: 40
vring: 1.14
ram: 1866

tests: P95 12h and linpack 100 runs max memory
temp: 73 max with Corsair H110
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post #3327 of 19539
Quote:
Originally Posted by pacho View Post

After approximately 50 bsods during the entire weekend, I finally got my 4770K stable at 4.6. My settings below.

46x100
vcore: 1.300
vccin: 1.950
uncore multi: 40
vring: 1.14
ram: 1866

tests: P95 12h and linpack 100 runs max memory
temp: 73 max with Corsair H110

Have you tried working the VRIN down a little? 1.95V sounds a little high for 1.3V Vcore.
post #3328 of 19539
Anyone know the max safe vcore for Haswell yet?smile.gif
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post #3329 of 19539
Quote:
Originally Posted by Forceman View Post

Have you tried working the VRIN down a little? 1.95V sounds a little high for 1.3V Vcore.


I know it is a little high for 4.6 but anything below 1.95 gives me bsod after around 6 hours of stress.

Maybe I could lower vrin by increasing vcore? But I'm already a little nervous by just touching 1.3
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post #3330 of 19539
Quote:
Originally Posted by Jason7890 View Post

If i de-lid i may get the ROG Impact.Your chip seems golden,mine is ok/good,as your say though the voltage scaling is very all over the place,funny thing is some chips seem to run hotter at lower voltages,i guess its about leakage?I think with a de-lid and a better mobo i could get 4.8/maybe 4.9 prime stable.Just happy to be at 4.6 though,brought the chip day 1,then saw reviews and was thinking i would'nt hit 4.3,lol.

Also what mobo you using?
And what VCCIN?

At the moment it's an MSI MPower and i've not got a single thing bad to say about it apart from a dodgy USB3 header. Seems to be working a charm for O/C'ing although i couldn't tell a good board against a bad board as this is my 1st outing since the 790 days!

VCCIN i've set to 1.9v but after a lot of reading and a few conversation's i'll be going back to the drawing board and starting with core again probably tomorrow. I've been away for two weeks and left it at x48 core solid and x41 uncore solid. Got back today and have brought the uncore up to x45 now keeping ring at 1.245v.

I'll come back to x48 for 24/7 i reckon as both voltage and temps are low, it'll just need fine tuning and voltages dropped where possible. All depends on the next steps up though and at what voltages they are stable, if i can get them stable. I'm expecting to be at least 1.3v for x49 and x50 might be too big a jump to get stable, never mind a 24/7 stable O/C. W/C setup on the way so keen to see if that has any effect apart from temps.
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