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Skylake Overclocking Guide [With Statistics] - Page 602

post #6011 of 11359
Quote:
Originally Posted by Dacr View Post

I think I got a 6600k that doesn't want to OC very far without high voltage frown.gif

Using Cryorig m9i, which id hoped would perform similar to 212 (But fit in my ITX case!) and get me to 4.5, but getting as below:

1.35v - P95 28.7 worker stops withing a few mins
1.36v - Same
1.37v - 92degrees after 20 mins, cancel test
Auto - Max 1.39v in P95, max temp 82, crashed after about 50 mins. Max 1.31v / 70deg in realbench, no errors in about an hour. CS:GO crashed after about an hour, that could have been due to new nvidia drivers though.

Auto voltage (Asus Z170i Pro Gaming) seems to work best even though everyone seems to advise against it. Running at 4.3 as standard on auto voltage when actually using the computer at the moment, takes max of about 1.30v and gets to 65deg gaming, no issues.

I cant understand why auto takes 1.39v but stay about 10 degrees cooler than 1.37v manual, any ideas?

Maybe I should just get a decent AIO, Kraken x41 or H80i GT would fit my case, but was hoping to hit 4.5 at lower voltage.

You're seem to be using bad cooling and also running the hardest test possible, so it's not much of a surprise to get those results. Running at ~90c instead of ~60c probably has at least some minor effect on stability.

Check what you can do with manual voltage set and a medium level of LLC when using x264. Realbench has an x264 test also, if you don't want to run the one in the guide. About 90% of 6600k's will do 4.6ghz @1.4v in x264 but that number is probably more like 1.45 under the hardest prime.
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post #6012 of 11359
4.6@1.4v makes me think I got a pretty decent 6600k. I'm at 4.7ghz 1.33v and it passes x264 without breaking a sweat. I'm at a voltage wall of sorts. 4.5ghz takes almost the same voltage to be stable (around 1.3v) and 4.8ghz takes something like 1.42+ to be almost stable with x264, but the temps go to high for me to be happy. (and it tends to crash after an hour or so, i haven't pumped the voltage more to see how much it'll take to be stable)
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post #6013 of 11359
Quote:
Originally Posted by ManofGod1000 View Post

Unless you have a miracle chip, I find it astonishing that you can get better results with a 212 Evo than I do with a Noctua NH-D15.

If you have not de-lidded comparing chip to chip temps and basing it on your coolers is meaningless. A non-delidded chip temp only depends on how they applied the tim at the time of manufacturing. Remember the glue they use causes a contact/gap issue that hinders heat transfer from die to ihs. The cooler is not even in the picture at that point. Its like sitting your car on a garden hose and then widening the end of the hose expecting to get more water..
post #6014 of 11359
Use hwinfo, it will show you if you're being throttled which would explain the temp difference. Secondly and I'm sure you'd know, there is practically no reason to test with Prime.. just read the OP for the programs and go from there.

When you say you you crashed in CS:GO use this to see the code.

http://www.nirsoft.net/utils/blue_screen_view.html

That (bug check code) will give you a hint if it's related to memory, cpu or video card.
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post #6015 of 11359
Quote:
Originally Posted by error-id10t View Post

Use hwinfo, it will show you if you're being throttled which would explain the temp difference. Secondly and I'm sure you'd know, there is practically no reason to test with Prime.. just read the OP for the programs and go from there.

When you say you you crashed in CS:GO use this to see the code.

http://www.nirsoft.net/utils/blue_screen_view.html

That (bug check code) will give you a hint if it's related to memory, cpu or video card.

Cheers, Ok, think I should give up on Prime, as I know is advised! It just niggles me to accept anything less than the toughest test and still call something stable, stupid probably I know. It also tests quicker, until my extension is done (few weeks!) I have to move my computer/monitor from wardrobe to kitchen table every night I use it and then back again before bed, so no leaving on a long test overnight!

CS:GO crash wasn't a BSOD, just kicked to windows with a "csgo.exe has stopped working"..

I reckon I can get 4.5 stable and cool enough using non P95 tests, think i'll just start again and banish all memories of P95..
Edited by Dacr - 3/3/16 at 4:28am
post #6016 of 11359
Quote:
A non-delidded chip temp only depends on how they applied the tim at the time of manufacturing. Remember the glue they use causes a contact/gap issue that hinders heat transfer from die to ihs. The cooler is not even in the picture at that point.

That's not true. Ivy and Haswell had very bad TIM but their temperatures were still largely decided by cooler performance.

Devil's Canyon and Skylake has a much lower temp drop from delidding - about half to 1/3'rd as much. The cooler is the most important variable by far for deciding temperatures on them. Chip-to-chip variance for under-IHS TIM is quite low, too.
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post #6017 of 11359
What are the ideal max temperatures for an i7 6700k running the x264 stress tool?

Currently testing 4.6GHz with 1.376v and so far hottest core is at 72ºC, using a Corsair H110i GT (with fans and pump on Quiet Mode).
    
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post #6018 of 11359
That's fine
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post #6019 of 11359
It's at 1.344V at stock settings and no load. CPUID HWmonitor says 1.36V.

Is this normal or just a software error? If so what program tells you an accurate number?

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post #6020 of 11359
After a couple of hours of x264, here's the my OC, 4.6GHz with 1.376v:





What kind of an 6700k did I get? Bad? average? good? tongue.gif
    
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