Which cpu cooler are you using? If stock cooler is being used, pl buy aftermarket cpu coolers like
Noctua NH-14D/NH-15D/NH-U14S
Cooler Master V8 GTs/212 Evo
Corsair H100i
Also make sure that you've correctly applied the thermal paste/compound.
How are you recording temps? Use HWMonitor or similar software to record the temps