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post #19571 of 22136
Quote:
Originally Posted by TheADLA View Post

Looks good. I would keep it at 4.6 Ghz. I also did when I was on Air. I had a nice Scythe Ashura 140mm Tower Air Fan but when I hit 4.7 Ghz, temps quickly rose to 90+ degrees Celsius during stress tests. But on the other hand, that goes for stress tests. Daily operating and gaming won't hit those high temperatures anyways. smile.gif

Hmm... Something to think about then. But, I'll probably have to try anyhow, because why not? Thanks again for the opinion, I'll post when I get more results.

Plan is to get some nice cpu, ram, and gpu overclocks on Air, and go further on water when that comes, so it'll be good fun
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post #19572 of 22136
Watch those temps though...

4.7GHz might be possible with your current cooling, but since ur already hitting 84C I think you should first try to see if you can stabilize 4.6 with less vcore.
Play around with the other voltages too, like CPU VRIN voltage.

For my 5GHz overclock I stopped using stresstests around 4.9Ghz because at that point my cpu was getting to hot for stresstests like AIDA.
From there on I focused more on Cinebench, because for my chip it has shown that when I pass Cinebench I am stable enough (for my uses). That is just my experience with my 4790K chip.
It might not work out the same for you, but I just wanna say around the temperatures you are hitting right now, watch out using stresstests like AIDA or prime and intel burntest wink.gif
post #19573 of 22136
At my current 4.7@1.35, p95 can get up to 80C, almost 10 degrees hotter than x264 and 20 above gaming temps. But I think I could try to stabilize 4.8 now with x264. It'll be at least 1.41V...worth the effort?

I don't have link software installed, but hwinfo can read the data from the hardware. Very nice as it has a water sensor (probably in the metal of the block; I think it is hotter than the water itself). It can get up to 20-25c above ambient. But my cpu is only 40c above the h80i temp even with absurdly high wattage from p95.
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post #19574 of 22136
I would try to run a Cinebench with 4.8GHz @1.4 and see how temps are. It won't make your CPU run as hot as Prime. If you bsod soon at the beginning of the cinebench run, you can assume u need 1.41v or more maybe I think. But if you bsod at the middle or near the end you could try more around 1.405 if your mobo allows that. Try to stay under 90, but 95C max. Thats what I would do.
post #19575 of 22136
1.7 volt oced ram on a 4790k am i ok ?
post #19576 of 22136
For the ram it's ok
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post #19577 of 22136
Quote:
Originally Posted by QuacK View Post

Watch those temps though...

4.7GHz might be possible with your current cooling, but since ur already hitting 84C I think you should first try to see if you can stabilize 4.6 with less vcore.
Play around with the other voltages too, like CPU VRIN voltage.

For my 5GHz overclock I stopped using stresstests around 4.9Ghz because at that point my cpu was getting to hot for stresstests like AIDA.
From there on I focused more on Cinebench, because for my chip it has shown that when I pass Cinebench I am stable enough (for my uses). That is just my experience with my 4790K chip.
It might not work out the same for you, but I just wanna say around the temperatures you are hitting right now, watch out using stresstests like AIDA or prime and intel burntest wink.gif

I think I agree with you, play it on the safe side for now until liquid cooling. It isn't like i need the OC right now either, everything (bar crysis 3) runs pretty nicely.

Yeah, I'll keep an eye on things, run more tests. I really think that the 84c was because of high ambients though, but at the same time, that was a really weird spike that I can't explain. It happened about 6-7 minutes into the test, it went from about 76ish to 84c for a split second, twice, and settled back down. I'll run the test again anyhow. I'll load up cinebench when I get home too.

Is Aida64 a particularly intense stress test? You listed it along with prime and IBT so.. yeah lol I'm curious. Thanks for the heads up on temps though, I'll definitely keep a close eye on it.

I'm not even delidded yet either devil.gif

so, you suggested messing with other voltages... I'll have to decipher those locations in my bios. It is pretty easy to navigate everything, but damn, this bios is loaded with stuff to sift through.
Edited by maddangerous - 1/27/16 at 6:48am
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post #19578 of 22136
Quote:
Originally Posted by maddangerous View Post

I think I agree with you, play it on the safe side for now until liquid cooling. It isn't like i need the OC right now either, everything (bar crysis 3) runs pretty nicely.

Yeah, I'll keep an eye on things, run more tests. I really think that the 84c was because of high ambients though, but at the same time, that was a really weird spike that I can't explain. It happened about 6-7 minutes into the test, it went from about 76ish to 84c for a split second, twice, and settled back down. I'll run the test again anyhow. I'll load up cinebench when I get home too.

Is Aida64 a particularly intense stress test? You listed it along with prime and IBT so.. yeah lol I'm curious. Thanks for the heads up on temps though, I'll definitely keep a close eye on it.

I'm not even delidded yet either devil.gif

so, you suggested messing with other voltages... I'll have to decipher those locations in my bios. It is pretty easy to navigate everything, but damn, this bios is loaded with stuff to sift through.

I think Prime is the most dangerous tempwise at a certain amount of voltage, although ive seen my core temp spike up to 99C by Intel burn test too, so I immediatly canceled the test at that point.
It might be just a spike and then settle down, but still that spike means it could happen again probably or get even worse. Aida is pretty stressful and can also get your cpu really hot at some point, but is a little less stressful than Prime and IBT.

I recommended to run a Cinebench because it will put a decent amount of stress to your cpu but run about 10-15C less hot than the three stresstesters mentioned before.
So this is a quick and much safer way to get an indication of how temps are and keep in mind then to add about lets say 10-15C to the temps you achieved after a cinebench to ndicate how hot AIDA might get your cpu. And at the same time I think it is a pretty nice indication of how stable your CPU is if you watch close if Cinebench fail right at the beginning or in the middle or at the end.

Maybe not everyone will agree with all this, but this is just my experience that I had in my overclocking adventure lol biggrin.gif


As for the other voltages, you should mainly focus on Vcore, and CPU Input voltage for ASUS Motherboards and Gigabyte Calls this voltage CPU VRIN. With higher CPU Input voltage / VRIN voltage you might be able to lower Vcore a little bit and still be stable, but this is not always the same case for every chip so you need to experiment a little bit.

Here is a picture of recommended maximum voltages for haswell that also applies to Devils Canyon, but dont just apply these maximum voltages instantly in your bios ofcourse... start low and work up until the max's of the main important voltages and keep watching temps until you hit around 90C for stresstesting or Cinebench, thats where I would defenitly stop running stresstests and get better cooling / delid or just be happy with what you got:



And Maybe this guide can help you also:

http://www.overclock.net/t/1411077/haswell-overclocking-guide-with-statistics/0_100

You can PM me too if you want, im always happy to help if I can wink.gif
Edited by QuacK - 1/27/16 at 8:13am
post #19579 of 22136
I'm really starting to get annoyed by the random machine check exception bsods i have. It is by far the most common bsod when i test 4.9-5.0. I have been stable at 4.8/1.31v for weeks, lot's testing and hours of bf4, no problem, but today i got a 'machine check exception' bsod mad.gif. Can't really locate the problem, i have tested lot's of configurations.
post #19580 of 22136
What is the machine check exception code?
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