Safe temperatures for i7 4770k.

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Jeankyyyy

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Oct 4, 2013
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I just built a custom water loop and i'm wondering what temp should I stop overclocking my cpu? Right now I have it at 4.2ghz with 1.2V, i'm getting 70-75c on load using prime95.
 
Solution
Jake Wenta


You have to make sure to remove the thermal paste properly before applying new.
And apply the right amount, too little has the same affect of too much. And a poorly placed block could be an issue. Another problem could be dust in the radiators, poor fans, or a bad pump or gunked up tubes. Also dirty blocks on the inside means less contact for water to take the heat from the CPU.

Too long runs, too many blocks can make cooling less adequate. A small radiator or poor fans will also affect cooling, higher static pressure for push-higher CFM for pull.

Here's a quick guide on Thermal Paste:
Most Thermal Paste:
http://www.youtube.com/watch?v=8rn0BqMyXBM
Tuniq...
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Jake Wenta

Jake Wenta

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Mar 13, 2013
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Watercooled with 75*C on 1.2v? Sounds rather hot for me, but I could be wrong. I believe Intel max is 104*C and safe temp is 90*C. But you may not want to go that high, as the higher voltage and the hotter t he CPU, the quicker it degrades.

Intel says their safe temp is 72*C for the Tcase, which is different from Core temp:
http://ark.intel.com/products/75123/
 
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A

AK139

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May 26, 2013
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You can't be on 75C on 4.2ghz @ 1.2 with custom water cooling. I'm @ 4.3 on a 3570k with a hyper 212 and Im at 72C. You must've done something wrong. Why don't you try taking off the thermal paste and put it back on. Maybe you put to much of it.

Hope I helped
 
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J

Jeankyyyy

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Oct 4, 2013
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Yeah, I know temps are bit higher than it should. At first I was getting 100c! But then I figured that I misplaced the block, then it went down to 70c at 4.2 1.2v.
 
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Jake Wenta

Jake Wenta

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Mar 13, 2013
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It's still too high, I'd assume your putting too much or way too little paste? Wipe off old, and put a little in the middle and allow the pressure of the block to spread it out. If you have tuniq-then it is a little different in application, but it comes with a spreader. And make sur eit is coming in contact with the CPU well, don't over tighten the blocks screw, but make sure they're tight.
 
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Jake Wenta

Jake Wenta

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Mar 13, 2013
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You have to make sure to remove the thermal paste properly before applying new.
And apply the right amount, too little has the same affect of too much. And a poorly placed block could be an issue. Another problem could be dust in the radiators, poor fans, or a bad pump or gunked up tubes. Also dirty blocks on the inside means less contact for water to take the heat from the CPU.

Too long runs, too many blocks can make cooling less adequate. A small radiator or poor fans will also affect cooling, higher static pressure for push-higher CFM for pull.

Here's a quick guide on Thermal Paste:
Most Thermal Paste:
http://www.youtube.com/watch?v=8rn0BqMyXBM
Tuniq:
http://www.youtube.com/watch?v=xTrSOywFn_4
 
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Jakke

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Oct 24, 2013
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For anyone who wants to know, I'm running a standard i7 4770k, no overclocking and a Corsair H55 cooler.
My temperatures stay around 58-62 for the first 15 minutes and then they suddenly go up to 68-72. As far as I can read, these are safe temperatures, nothing to worry about :)
 
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M

melibond

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Jun 16, 2014
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If you want a good performance try putting 1.300v and 4.5ghz on the cpu,because 1.2v is not enough for 4.2ghz and it will get the cpu hot since it needs more volts,also tell me what kind of liquid cooler you have and i'll help in every single thing you have :).
Add me on steam at KavEidUps so we can play together sometimes and whenever you need something just ask me,just ask me and we'll talk about everything,fans positioning fans speed,type of liquid cooler and everything :)
I've got two R9 295x2's waiting for you to come and play ;)
Hope to see you on my friends list pal :)
 
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Rob Strong

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Jan 7, 2015
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There is a known issue with the cpu heat spreader on the 4770k.
De-lidding the cpu gives 15-20 degrees C cooler like the new 4790k gets where they fixed the heat spreader issue.

I just wanted to add this because this is the reason for the unusually high temps in comparison with other cpus.

-A 4770k owner
 
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Rob Strong

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Jan 7, 2015
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I guess I should also mention my temps.
I have an h100i, and have my cpu currently overclocked to 4.1Ghz
My core temps approach, but stay slightly under 70 degrees C when running prime 95 small FFTs

I can get stable overclocks at 4.5Ghz and higher, but the cpu gets crazy hot.
Like 4.3Ghz running prime 95 went slightly over 90 degrees Celcius.

Will probably de-lid the cpu in the next week or so...
Using this video as a guide https://www.youtube.com/watch?v=1OdkxgrfjWg
 
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h1z1mongoose

h1z1mongoose

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Jan 9, 2015
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In December I completed a build which has an i7 4790, ASRock Z97 Extreme 6, GeForce GTX 760. I'm not overclocking. 16RAM, an SSD for Win7Ult, and a 4TB HDD for storage. My case has 3 built in fans, and I'm running a Cooler Master fan on the CPU.

My CPU temp ranges from minimal to high load, low 30's to low 40's C.

M/B temp ranges from 20's to 30's C.
 
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Rob Strong

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Jan 7, 2015
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Well I would like to say that, since you didn't get the K (4790K), you wouldn't be able to overclock if you wanted to.
Also in the 4790s intel fixed their heat spreader design, so your temps will be different.

All of that considered I also get around those temps at the turbo clock of 3.9 Ghz. Maybe high 40s istead of low 40s, but overclocking draws more power for cpu gains up to 20 or 25 percent. The point is to get a significant amount of extra performance out of the computer without paying significantly more. That is why this thread is important. People need to know just how hot they can allow their cpus to get without negative consequences.

Side note: Looking forward to H1Z1 btw :) just a couple more days before early access is released.
 
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