What does it take to keep a i7 4790k cool at 4.5ghz?

[gasolin]

Atm i use a thermalright macho zero with the fan from my true spirit 140 (140mm ty-147) and get 70 degrees using asus realbench and with prime 95 max heat the temperature is in a few sec about 95 degrees.

My cpu is oc'ed to 4.2 ghz on all cores and 1.20 volt.

What does it take to get a i7 4790k to run at 4.5 ghz and less then 80 degresse at max load, without the cpu cooler sounding like a hairdryer (i don't want to imagine what i would need to get max 80 degrees at 4.5ghz using prime 95)

 

[gasolin]

Are you using the exhaust shroud?

No, i have tried it and i didn't notice a big enough difference, so i just use my corsair af quiet 140mm fan to suck out all the warm air inside of my cabinet as it is surpose to do.

 

[Luis Flores]

Have had the Corsair H100i and it's way to noisy, even the pump was loud

Your H100i was probably broken. My user experience was excellent and cooled my 4790k at 4.5Ghz a constant 80℃ for 16hrs straight under real world stresses. Also kept my 4770k between 75℃-85℃ in real world conditions at 4.8Ghz for much longer in real world and synthetic conditions.

Keep in mind that if you're, trying to overclock, not all cpu's will be able to achieve high clock speeds because of the way they are assembled. Until they are manufactured mechanically and not by hand they will always be that way.

 

[b_murray]

Luis: What voltages?

H100i on a i5-4690k @ 4.5ghz is yielding pretty mediocre results. 1.22v isn't that much... I feel like the H100i should be doing better than 75-80 during stress testing and bench marking. I was hoping to turn the voltage up to at least 1.27v, but last time I did that, temps went 90+. Feel like big air would've been more effective (cost, sound and cooling), but I could be wrong.

 

[Guest]

ohh, i guess 45 degrees at low load and a bit lower temps at idle is more then okay.

Update, have the phanteks PH-TC14PE although it's a bit loud (compared to thermalright) i thought this one should be able to keep my cpu cool, it not in the 30's at 1.00 vcore and 4.0ghz, almost idle 40-42 degrees, max load with ibt (warmer then prime 95 ver 26.6) i could get it up to 4.3 ghz,vcore 1.150 and 80-81 degrees and since my cpu never gets so hot in everday use and gaming i would be more then okay.

Just know now that if i for any reason or other people want to run a i7 4790k at 4.5 ghz and less then 80 degress they need serious cooling like a corsair H105 or H110

Interesting. I've been struggling with stock temps on my 4790k and have just ordered the Phanteks hoping it will drop my temps somewhat. I'm slightly concerned it's not going to have much impact. Currently my idle temps are 30C and load with Prime95 v26.6 small FFTs for 10 mins is 87C (ambient temp 19.5C) but I don't have a very hot graphics card in it yet, I'm using my old 7600GT (which is at 46C) until I can afford a GTX 970. Thanks for the post.

ps. Interestingly, I read a test review that claims "The two Corsair AF140 fans work wonders with the Phanteks heatsink in the quiet 800RPM mode, surpassing the Noctua and Phanteks heatsinks by 5°C at the same speed. That's impressive." http://www.xbitlabs.com/articles/coolers/display/noctua-nh-d15_5.html#sect0 They were AF fans so I'd assume SP fans would be even better?

 

[gasolin]

I always try to keep rpm down so theres no noise so i never except with my thermalright macho zero with a ty-147 fan have it on normal speed

 

[CompuTronix]

MikeUk,

I think that 4Ryan6 and I have already weighed in on this topic in your other thread.

Almost any aftermarket cooler is better than Intel's stock cooler, and the Phanteks that you've ordered is an excellent air cooler.

Trust my advice ... the difference over the stock cooler will be huge, so relax. This is all going to work out great for you! 😀

CT