My CPU overheating

MoonTricks

Commendable
Jan 16, 2017
4
0
1,510
i recently bought a I7-6700K. i put it in with a Coolermaster Hyper 212 EVO but when my pc is idle, mi temperatures are between 70-80 and spike to 120 Fahrenheit. i replaced the thermal paste but that still didnt work. im not overclocking and havent done so either. How do i fix this?
 

MoonTricks

Commendable
Jan 16, 2017
4
0
1,510

What temperature should it be at in Celsius while idle?