4790K terribly high temperatures!!

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Rahul_Ignited

Rahul_Ignited

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Apr 17, 2016
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Hey guys,

My 4790K has been breaking records since previous week. Just playing games like Far Cry 3, Far Cry Primal or Watch Dogs 2 takes it upto 80-82 degree celcius within an hour. Cinebench took it to 85.

Prime95 26.6 small FFT took it to 95C then I stopped the test

Cooler is a Corsair H60 (seriously a pathetic cooler. Bending the tube to install the pump was nearly impossible). The CPU is running at Stock Speeds. Also I set the Vcore in the BIOS to 1.2V manually.

I tried reseating the cooler properly several times but no luck.

Any help appreciated. Thanks in advance
 
Solution
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It won't be 44C ambient temperatures inside the room. Maybe around 32-28 in the dry heat as we tend to use desert coolers. Rainy season is another story, we need an AC then. Don't forget to get a better case too. As I said PrimeABGB sells the Noctua CPU coolers at a very nice price in India (3000-6600)

My system is 7 years old and I have lived in New Delhi, Amritsar, Hong Kong, US and...
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Dont worry about p95, it's literal torture for haswell / DC cpus. But your gaming temps are def high.

Yes your cooler sucks, if you have the money then a replacement should help a lot. Your temps are above average even for a h60 right now though.

Out of interest, what brand of paste are you using?
 
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Well to a extent, if you have a good heatsink it will not, but if you dont have the best heatsink it will. All I can say for you is to upgrade your heatsink to something better.
 
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But there are folks getting like 60-65 degrees well under heavy load in 6700K @ 4.6GHz with this cooler.

Almost 8 in 10 people that has a 4790K reported an overheating issue. My H60 is barely 5 months old and I have lots of rendering to do but I can't due to these temperatures.

So I think I have no choice other than buying a new cooler again.

And BTW Thanks everyone for answering :)
 
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It just seems to be a CPU problem (as in a hot running CPU)
 
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You should be getting better results than you are with that h60 though, comparable to my setup (4790k with 212 evo).

Your paste is ok, whats the rest of your cooling setup like?

Are all cores getting that hot or is there a difference between them?
 
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The radiator has the fan that came in the box with the cooler in a pull configuration. The cabinet has a front intake fan and a side exhaust.

Core #0 - 85c
Core #1 - 84c
Core #2 - 80c
Core #3 - 83c
Package - 86c

This thing is getting unbearable now. I did a huge mistake buying a 4790K. I should have waited for the 6700K
 
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That temperature spread is fine

Ok, and the fan (4 pin) is plugged in to the cpu fan header and the 3 pin is plugged in to a sys fan header?

You could try swapping them - plug the 3 pin pump into the 4 pin cpu fan header and the fan into a sysfan header. You will need to set cpu fan to full speed in bios if you do this though to ensure the pump is always at 100%
 
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For the header, I already tried swapping both. The Pump is currently connected to the sys_fan header and the fan in the CPU_fan header. I've set to run all the headers in Full Speed in the BIOS.

The pump is running at 4320 RPM and the Fan is running at 2001 RPM. The max for fan and pump on the manual was 2000 RPM and 4400 RPM respectively.

And it's summer here so my ambient is like 29-36c during the day and 22-26c during night

Also I got weird difference in temperatures b/w cores while rendering -

Core #0 - 82c
Core #1 - 85c
Core #2 - 79c
Core #3 - 92c
Package - 91c
 
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If you keep your ambient temperature that high, then you need a more powerful cooler or start using an air conditioner. The differences you see while rendering are to be expected because not all cores are equally busy and even if they were, you can still expect differences. You really should consider a better cooler.
 
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Then a better cooler is the solution if you want to see lower temperatures. When checking reviews like http://www.pcgamer.com/closed-loop-liquid-cooler-roundup-8-coolers-reviewed/ always presume the results are at normal ambient temperatures; expect your CPU to run 15-20°C higher at 36°C ambient.
 
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You said that your cooler is in the pull configuration. Try to change it to push air out of your case.

If it doesn't work, try to downclock your processor by 200 MHz. I know this is not a good solution but this will help you bring down your temperatures considerably. The performance impact will be just 5%.
 
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No matter what I try, temperatures are still not decreasing. The radiator and the tube is very hot to the touch. I think that I don't have any other option other than selling this one and buying something like a 7700K. What do you guys think?
 
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Rahul_Ignited It sounds like your cooler's radiator is full of dust. Please take a photo of it. In addition, take a few more photos of the inside of your build. Upload the photos to imgur and share the links here.

Upgrading to a i7-7700k will not solve your problem. That CPU runs hotter than the i7-4790k.

When you re-seated the cooler, did you clean off the old paste with isopropyl alcohol and re-applied the precise amount of paste specified?

Please upload the photos ASAP.
 
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Part of the issue if not a main part of the issue are your ambient room temps. That's incredibly hot and yes the 4790k is a hotter cpu by nature due to high clock speeds and hyper threading keeping the cores busier. Comparing a 4.4ghz (max turbo) cpu to an i5 that's a different architecture, only reaches 3.6ghz max turbo and lack hyper threading as well as probably in a cooler room is a difficult comparison to make.

Keep in mind that when coolers are tested and compared to one another in benchmarks they're often done so at around 22c, not 29-36c. The h60 is a lower end aio cooler and equates to a decent air cooler. Larger air coolers will outperform it. A better cooler may help but it won't offer a magic fix to extremely high ambient temps. It's physics, when the air is hot to begin with the capacity to retain and move more heat is reduced. Not quite in a linear fashion but close enough.

Meaning if your temps are 82c when gaming but your room temps are 10-14c hotter than what's considered 'normal' your overall temps will be roughly 10-14c hotter. Take that off of your current temps and when gaming in normal conditions the h60 would have your cpu running closer to 68-70c which is normal.

You might try going into the bios and manually setting your vcore (core voltage) to a lower amount. Start at around 1.2v and see if the cpu is stable. If so then lower it a little to 1.18v and retest it using a stress test like rog realbench or p95 as you did with v26.6 and small fft's. If it's still stable, try 1.16v etc until it's not stable then raise the vcore a hair. If it crashes at 1.16, try moving it back to 1.18 or 1.17v. Excessive vcore contributes to heat so if it's currently on auto and using 1.22v but you're stable at 1.18v, that's .04v only creating heat.

Bigger coolers will help but keep in mind that whether it's an air cooler or aio, both rely on the ambient room air to carry heat away. One does it from a radiator, the other from cooling fins or basically a 'radiator' over top of the cpu. Without combating that you're going to struggle with temps a bit. Temps you see for other cpu's like the 6700k or 7700k aren't taken at 36c either so if it appears they run a whole lot cooler than your 95c, consider their testing conditions in likely a 22-24c room.
 
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How about some experimenting?

Try disabling hyperthreading and see how it affects the temperature. Or else try locking your 4790K to 3.8 GHz with HT enabled.

See how these modifications affect your temperatures.
 
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Rahul_Ignited It maybe just be the lighting of the photo, but there appears to be a lot of dust in your Corsair radiator. Please confirm if you're seeing that too. If so then it's crucial that you use compressed air to blow that dust out of your radiator. While you're at it, please dust out the rest of your case as well. Please do this now, recheck the temps, and report back here. Is the issue better, worse or the same?
 
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