i7 7700k 90c!! "underclock" ??

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Palmeira

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Jun 27, 2017
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Hello !

I just got a i7 7700k on a z170i pro gaming motherboard and a hyper 212x all on a NZXT s340 case. After 18 minutes of playing cs:go i had 89-90c spikes. I dont want to know what happens if i open battlefield1. On iddle im usually on 28-33c, on cpu-z bench i was getting 70-73c.

I saw people delid the cpus and work a lot better but im scared, im sure ill break it. Is there any way to underclcok the cpu to get better temperatures? should i change something about voltages? if so how can i do it??

Thank you!

 
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I certainly had good idle temps, nearly instant high temps under a bench, even with liquid cooling. Most of the cores stayed in the high 70s, but that one core would consistently be over 80C and it would spike to 91C on occasion.

I replaced my CPU TIM with a high end compound, not liquid metal. My goal was to get that one core that was hitting 90C to stop doing it, and that worked. I'm told the real reason it works so well is that you are reducing the distance between the heatspreader and CPU die, which means there is less thermal compound in the mix. Thermal Grizzly Kryonaut is what I used. Highest temp I've seen lately is 78C. But at 1.416v to reach 5GHz.

The delid kits aren't strictly necessary, Kabylake and Skylake don't have any...
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the one in the back. the one in the top takes air out
 
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Need to be at least one in the front (intake) with the one in the back taking air out.

The way it's setup now is useless, why your temps are too high.


 
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CSGO has a tendency to be CPU bound, so causes CPUs to generate excess heat. What you want to do is put a frame limit on when playing that game, and voila, the temps will be reasonable. Nobody needs 200+ FPS to run CSGO.

Games that are GPU bound will not exhibit the same behavior, so you should actually find with BF1 that the CPU runs cooler than when playing CSGO.
 
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I didnt set it up like that, its the way it was. how can i change that?

 
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Any cooler needs a source of fresh air to do its job.
Particularly if you use a hot graphics card with fan type cooler.
Concentrate on front intake air.
Mount a pair of 120 or 140mm front intakes.
At most a single 120mm rear exit fan and you should be good.

To verify to yourself that case cooling is the issue, take the case covers off and direct a housefan at the innards. I bet you will see good results.
 
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Get some new fans, mount one or two in the front pulling air in, two is better, 140mm fans.

Make sure the rear fan is blowing out, flip it around if need be.

Top fan pulling out also.

140MM fans are MUCH better.
 
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Fixing the airflow to something reasonable should help.

What voltage is the CPU core hitting under a full load? You can certainly reduce that within reason as the defaults are typically high to make sure that every retail chip will work. I've seen a few people get away with 1.25 volts for stock boost speeds. Mine booted at 1.35 for the first time if I recall.

Intel does have a reputation for poor thermal compound application with Kabylake, mine was certainly bad on a single core, and delidding helped a lot. Not a miracle change, but definitely fixed that one core and let me turn the fans and pump down a few notches.
 
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Mine runs at 4.8 at stock voltage out of the box and is 100% stable.... On air.
 
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running the cpu-z stress bench i got about 80c.
Hwmonitor says VID voltages max 1.392V. Value when stressing was 1.299-1.302
CPU-Z says Core voltage 1.328V
 
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that cpu has become sadly a popular problem, rma or delid

delid voids any warranty, guaranteed, so it shouldn't be a option, especially with a new part

the 212 should be enough for the 7700k without overclock, even with some overclock should handle well, not at 5ghz, but 4.5 should be capable i think
 
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what happens? what happens is that intell messed up the 7700k and what you see has become a sad reality, return it or delid, i would return it, pay to delid is a stupid idea i think, apart form the fact that the cpu looses any warranty doing that
 
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