i7 7700k overheating

Hi,



I have an 7700k and a corsair H115i. I'm not overclocking, but recently my CPU has been running at over 90 deg C while idle.



I checked the to make sure that the copper plate was making contact with the CPU and it is.



I built this thing about 4 months ago so the paste can't be old and there is barely any dust in the system.



I read some stuff about 7700ks overheating due to overclocking and just running hot in general, but not above 90 deg C hot.



Before my CPU would run at about 30 deg C while idle.



Why is this happening how can I fix this?

Please help.



Thanks!







I didn't find the right solution from the Internet.







References:

www.tomshardware.com/answers/id-3598137/7700k-overheating.html



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