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i7 4790k overclocking on water - Page 2

post #11 of 12
You aren't going to get more than 200-300 MHz on water, perhaps less.

Also, the big temperature drops come not from using water rather than a high end air cooler, but from delidding the CPU, which can lower temps by 10-20C on peak load.

Basically for 24-7, I'd still stay under 1.35V Vcore, and 2.1V VCCIN/VRIN. The voltages don't really change. It's not heat that will kill a CPU (they throttle and cause a system restart if it gets too hot), it is voltage. Water does not change that I am afraid.
Quote:
Originally Posted by IMI4tth3w View Post

i'm currently @ 4.7GHz and 1.295V but using adaptive voltage so that the chip only sees full voltage and frequency under load. it was pretty much 1.275v stable but i went just a tad more to be safe. with the h110i gt and noctua fans on silent it never goes higher than 70's even under load for a long time.

imo, 4.7 is the sweet spot with these chips as far as voltage go if you can keep temps in check. i've also got mine delided with CLU.

custom water loop is really just to really maximize cooling, which should keep it happier at higher voltages. if you can keep temps under load in the 50's i wouldn't be worried about going 1.35v if you get an adaptive voltage profile set up so its not ALWAYS at 1.35v. if you plan on keep this chip for a long time, i would keep it under 1.35 if under custom water loop. but honestly you could probably even get closer to 1.4 if you can really keep it cool, it also just depends on what frequency you are shooting for. just have to play around with the chip.

you could always grab a chip from silionlottery.com to get a pretty good idea of what you are getting.

Shipping to Europe is expensive these days and Silicon Lottery no longer carries 4790Ks - it's 6700Ks from here on.
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Trooper Typhoon
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post #12 of 12
Thread Starter 
Update edit: So after WC install I reached 5GHz stable on 1.43V (just for test).

Thank you for replies.
Edited by LucikMucik - 10/4/15 at 12:42pm
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