i7 7700k random spikes to close to 80c on one core when idle

[mustysloot]

new pc here. when im idle everything is at 30c but one core will randomly go to 70-77c and drop back to normal. my load also goes up a little. im using real temp to check my temps. when im gaming ive seen the maximum say 93c and im pretty sure im only doing max 50-60% load. what should i do to fix this?

stock case fans.
nh-u12s cooler
intel i7 7700k

 

[Ne0Wolf7]

See if you mounted the cooler properly, meaning take it off and try again. 93 is to high for comfort, have you overclocked? The question might not matter once you redo the cooler, but still important in temperature questions.

 

[mustysloot]

ive taken the cooler off about 3 times. i felt like maybe i put too little so i tried with a little more and its basically the same. ive only overclocked my monitor. everything else is running normal. my mobo temp gauge did says 30 before and now it says 40. i was thinking maybe my airflow isnt good because i only got 2 fans. one on back and one on top. im still trying to figure out this airflow thing. whats the best case fan i could get?

nzxt source 530 full tower

 

[CompuTronix]

Read this Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

 

[Ne0Wolf7]

That sticky's full of great stuff, but if you only have a fan on top and on back, airflow could defiantly be your problem. Leave the back fan as an exhaust and put your top fan in front as an intake. If you want more fans, I would go for either a few Noctua NF-F12 or Corsair Air Series SP120, depending on how much money you want to put towards it. The more expensive nocturas are nicer, but both are very good.

 

[CompuTronix]

Guys,

Fans won't fix a spiking problem.

Core temperatures increase and decrease instantly with changes in load.

Intel’s specification for DTS response time is 256 milliseconds, or about 1/4th of a second. Since Windows has dozens of Processes and Services running in the background, it’s normal to see rapid and random Core temperature “spikes” or fluctuations, especially during the first few minutes after startup, which should eventually settle. Any software activity will show some percentage of CPU Utilization in Task Manager, where unnecessary Tray items, Startups, Processes and Services that contribute to excessive or continued spiking can be disabled.

6th Generation processors introduced "Speed Shift" technology in Windows 10, which responds much faster to changes in workload than "SpeedStep" due to having many more Core speed and Core voltage transition levels.

Since 7th and 8th Generation Speed Shift is twice as fast as 6th Generation, some users complain of Core temperature spikes which cause fluctuations in fan RPM at idle. Motherboard manufacturers are currently developing BIOS fixes that include separate SpeedStep and Speed Shift settings with more flexible fan curves and time delay options.

CT