Cpu temps started going crazy on idle

[ognax]

Soo it was just normal day playing minecraft. temps were normal too but after 2hours pc started making weird noise and cpu temps were up to 87°c (normally about 60°c when playing minecraft). So i restarted my pc and my idle temps was 60°c (normally 30-40°c on idle) wtf happened? I applied new thermal paste didint help at all what should i try. im now trying to troubleshoot it. Hope me luck and if u can help me eny way thx.

 

Newest windows version. 

Cpu: i5-9600k

Gpu: gtx 1660ti

Ram 16gb dual slot

Psu: 550w corsair

Ssd: 250gb

Hdd: 500gb

 

Ask for more info if needed

[Skiiwee29]

<-- Moved to Troubleshooting -->

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[Biohazard777]

- Check fan speed.
- Check your heatsink mounting pressure (simplest way is to lay the case down, push the heatsink down with your hand and see if temps improve drastically).
- Check CPU voltage (VRMs could be out of whack, supplying too much, or it could be bad bios settings...).
- Temp sensor you are looking at could be defective, check other sensors.