I7-7700k runs hot 90C

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v_sammie

Honorable
Sep 17, 2017
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10,530
Hello,

When playing a game where the cpu runs at around 70-80%, the average cpu core temps are around 88C.

If I run cpu-z stress test, it instantly goes to 99-102C. I suppose that running it for more than 10seconds would increase it even more, no?

What do you guys think?
Send it back?

Greetings
 
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mdd1963

Titan
Jan 14, 2006
16,616
1,735
81,240
I'd be much more concerned with the cooling solution. Fan turning? Heat sink actually rated/approved for 90+ watts? Sticker removed from bottom of heat sink? thermal compound applied? Heat sink locked/tightened down correctly?

Finally, what is the core voltage shown in CPU-z at 4.5 GHz?
 
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V

v_sammie

Honorable
Sep 17, 2017
32
0
10,530
It's a big cooler like this:
https://goo.gl/images/PJ8oor

I had it on my i5 cpu, but now I upgraded to an i7 and I just took the same cooler.
I cleaned the pad with rubbing alcohol to remove all old thermal paste. I applied new paste and mounted it (new mobo too)

I'll check the core voltage when I get home, but it should all be stock settings. I didn't overclock anything (yet).

The cover is removed and the fan is turning.
How can I be sure it's also attached properly?

Also, the temperature reacts really quickly. Within half a second of starting the cpuz test, it goes super hot, and also within half a second of turning the stresstest off again, it goes back to normal.
 
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V

v_sammie

Honorable
Sep 17, 2017
32
0
10,530
I found the issue.
The CPU casing had a dent on it, like a corner of a sharp object hit it.
Because of that, there was very bad thermal contact between the CPU and the heatsink.

I filed down the soft metal from the CPU casing which was dented out, to make it perfectly flat again.
It operates flawlessly now ;)
 
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