4790K HOT

Phail

n00b
Joined
Jul 17, 2013
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I upgraded my sons system from a i5 4460 to an i7 4790k. I bought a Phanteks TC14PE to go with it thinking I would get an OC out of it, wow was I wrong.

The case has good airflow, and I have reseatted the cooler many times thinking I did something wrong.

I decided to do a worst case scenario since it is winter here, room temp was roughly 18C when this was tested.

I ran Unigine Heaven until the GPU was warmed up then started Prime 95 27.7 Small FFT's non avx on stock settings, I will let the picture speak for itself.



Honestly I was pretty shocked, I have an i5 OCed and it never came close to these temps at stock. Live and learn I guess...
 
Something is amiss, wrong mounting bracket? Forget thermal paste? Motherboard carried over a voltage setting for the CPU from the previous CPU you had? Def not right.
 
That Vcore voltage looks pretty high. Isn't the 4790K a Haswell derivative? I was under the impression those were supposed to be around 1.2V. That seems to be what my 5820K defaults to, anyway. Maybe check to make sure you don't have a wacky BIOS setting configured?

As I recall, though, those Devil's Canyon cpus were notorious for running hotter than the regular Haswell chips they replaced.
 
Voltage is 1.170 max, most of the time it is 1.163.

I have taken the cooler off many times and checked the contact and it seems good.

I loaded optimized defaults and left everything on auto. I am not sure how much it adds to the temps but the iGPU is running a second monitor.

If I run AIDA64 or Prime 95 blend it maxes out about 65C, like I said, I wanted to run a worst case scenario so I ran Heaven and Prime 95 at the same time and this was the result.
 
I would have said not that bad (80c is still very safe on those CPUs, Intel only starts throttling them around 100c) but then I noticed the 4.2ghz clockspeed and the CPU fanspeed (1600rpm) - plus you said non AVX. That definitely does not look right to me. I get those temps too right now but that's with my CPU fans at 900rpm, 4.4ghz on all cores and 1.23v. I have the iGPU disabled but I doubt it matters that much. Also I have only 2 case fans total running at 1000rpm (it's a Fractal R5 so airflow is good but not the best either).

Your cooler looks to me like it should be quite a bit stronger than my old and smaller Noctua NH-U12P... One thing though, do you have some super fast ram with XMP enabled maybe? When I put my 2133mhz sticks in, I got like +10c under stress once XMP was turned on
 
16 GB 1600 Mhz XMP for memory.

I did try overclocking, 4.8 Ghz @ 1.315 was perfectly stable at gaming. Temps were too high for me trying to stress test (95C + 1st minute), that is when I decided to stress at stock and add some GPU load to the mix.

I guess if I was going to run an OC I would at the very least need a really good AIO watercooler, full water would be better but this is for a teen so that's not going to happen.
 
16 GB 1600 Mhz XMP for memory.

I did try overclocking, 4.8 Ghz @ 1.315 was perfectly stable at gaming. Temps were too high for me trying to stress test (95C + 1st minute), that is when I decided to stress at stock and add some GPU load to the mix.

I guess if I was going to run an OC I would at the very least need a really good AIO watercooler, full water would be better but this is for a teen so that's not going to happen.

You do not need to put that CPU under water to achieve an overclock. There is something wrong, either with your BIOS choices, cpu install or a VERY shitty paste job under the lid.
 
Bios is default except XMP for memory.

By CPU install I think you mean cooler install, I am sure it is right. I have redone it over 5 times.

As far as the TIM under the lid, at best I could get 15C but that is at BEST. Probably more like 5 with my luck.
 
I've seen delidding drop it by 30. And even if it is only 15 for you, that's still 66 vs your 81.
 
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