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!

 
Solution
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...

yeah i guess ill have to do so :s
 
Palmeira, you need better case ventilation and possibly a better cpu cooler.

For reference my 7700k doesn't go over 60c while gaming and will not go over 85c when stress testing on a hot day. Chip OC @ 4.9 with 1.344 vcore. Cooler is Noctua NH-D15s, case cooling is three 140's intake and a 140 exhaust. NO Delid.

If I were you I'd get case airflow sorted before considering delid.

Take a look through this thread, http://www.overclock.net/t/1491876/ways-to-better-cooling-airflow-cooler-fan-data#post_22319249
 
Also, another thing about delidding is that the liquid metal/paste used doesn't last as long as the TIM Intel uses. Intel's is guaranteed over the lifetime of the chip - bar extreme overclocks - whereas you will have to reapply the lm/paste a few times. IMO, This makes a site like silicon lottery a complete ripoff, because even though they do the initial delid for you, you will have to reapply it yourself a few times down the road, or temps will just get worse.
 
yes, that is correct but the thermal paste properly applied does benefit alot

i was thinking about this problem and something bothers me, the idle temps are very good here, the problem is under load

i can't think of any component that migth be capable of cause the problems the op describes apart the cpu and possibly the heatsink

the maibnard, perhaps to discard problems a bios update?

the ram, hasn't been tested right? memtest to discard errors shouldn't harm
 
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 components on the top of the package. I used a simple razor blade and it took about an hour to have it up and running again.
 
Solution

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