i7 7700k temperature spikes sometimes hitting 100 degrees!!

[tomtaylor0109]

I recently updated my BIOS to the latest version. Now I am experiencing big temperature spikes on the CPU, spikes I have never experienced before. Any ideas?

 

[ko888]

What's the brand and model of the motherboard? Are you using an Intel stock cooler or a third party CPU cooler?

 

[tomtaylor0109]

What's the brand and model of the motherboard? Are you using an Intel stock cooler or a third party CPU cooler?

Gigabyte Aorus Z270X Gaming 5
I‘m using watercooler, never had an issue before.

 

[ko888]

Is the cooler's pump assembly connected to a fan header on the motherboard that is set to use PWM mode?