High temperature on Intel i7 4790K

[hapalupa]

Hello all, I know this is an overclockers forum and I have a quite opposite problem, but I know that you guys have a very good knowledge on this matter and hopefully you will be able to help me out.
I am trying to help my brother, his i7 4790K is overheating, idle temperatures are ok, about 30-40 degrees celsius, but under stress they top at about 100 degrees celsius (about 212 Fahrenheit). He still has a stock cooler and he did not overclock it.
What should I advise him? Is this normal temperature for Devil's Canyon and he should just get a better cooler or is it a faulty unit?
His specs:
Processor: Intel i7 4790K with stock cooler,
Motherboard: Gigabyte Z97X-UD3H-BK-CF
Case: Fractal design define r4: 1x120mm exhaust fan + 2 x 140mm intake fan
Ram: 2x8GB Kingston DDR3 2400MHz CL11



Thank you all in advance!

 

[EarthDog]

Is the stock cooler mounted properly? I would try to take it off, clean old paste off, put new on, and re-seat the heatsink.

 

[OptyTrooper]

Invest in a good cooler Is my advice. Those 4790K's run hot.

 

[Ozz1]

stock coolers are designed to work with the cpu from factory, under stock running conditions, i highy doubt the cooler is your problem at stock, even for a low oc they will work effectively if fitted and timmed properly, whats ED said is correct

 

[hapalupa]

Is the stock cooler mounted properly? I would try to take it off, clean old paste off, put new on, and re-seat the heatsink.

stock coolers are designed to work with the cpu from factory, under stock running conditions, i highy doubt the cooler is your problem at stock, even for a low oc they will work effectively if fitted and timmed properly, whats ED said is correct

Yeah the cooler was my first thought, he did check that yesterday, change paste and all, but with no significant improvement.
I was thinking that maybe he could decrease the Core Voltage, as I saw that people use something like 1.25V when they overclock to 4.6Ghz. He has all the settings in bios on default, and the Core Voltage is set to Auto. Is it possible that 1.238V is too much for the stock cooler and generate extra heat? I never had this problem with my i5 2500K even on stock cooler and under stress it was never over 65C.

 

[Kenrou]

Core Voltage is set to Auto

This ? might spike during heavy load

 

[hapalupa]

This ? might spike during heavy load

And from my understanding, spike in voltage can be a cause of the high temperatures?

 

[Kenrou]

And from my understanding, spike in voltage can be a cause of the high temperatures?

Definitely and especially dangerous with a stock cooler, more voltage = more temps. This is ofc ASSUMING it's a voltage spike

 

[OptyTrooper]

Yeah the cooler was my first thought, he did check that yesterday, change paste and all, but with no significant improvement.
I was thinking that maybe he could decrease the Core Voltage, as I saw that people use something like 1.25V when they overclock to 4.6Ghz. He has all the settings in bios on default, and the Core Voltage is set to Auto. Is it possible that 1.238V is too much for the stock cooler and generate extra heat? I never had this problem with my i5 2500K even on stock cooler and under stress it was never over 65C.

No 1.25v now is 1.238. Should run okay on yjr stockl

Just a side note you decided to do some serious orclcocking. You would to get new a robust cooler. They are plenty AIO's on the market beside look niceand clean in the case

 

[hapalupa]

No 1.25v now is 1.238.

I know he has 1.238V, I'm just saying that I read that people have they core voltage set to something like that when they overclock, while as I said before my brother did not overclocked his processor at all.
And still it does not run ok, on stock cooler he has like 100C degrees under load.

Anyway thank you all for advice, I think he is going to buy new cooler, will see how it goes.