CPU temperature

[martinlw]

Hi I have just installed a new motherboard have noticed cpu tem going down to 46c then shooting up to 64 is this normal with new thermal paste or do I need to redo the thermal paste.

 

[Cycloid Torus]

At idle, temp should be around 30C. Operating can be higher than 50C, but some CPUs fail a bit above 60C.

I would guess that attachment of heat sink is suspect. Take it apart and inspect for issues (like a cracked mounting frame if plastic, or a slipped mounting pin). Everything should fit together with only slight pressure - especially any Skylake builds.

Needs fresh application of thermal paste when you re-assemble.

As to thermal paste - pea method is probably best - Youtube has good videos on this.