CPU Temp/Fan Curve Spikes

[Schada]

Hello everyone,

 

My CPU temperature always spikes every couple of second (attached image) when at idle or light web browsing for work.  I think my setup has pretty good for air management. 

Case: Phanteks Eclipse P300A with the air mesh front.  Two 120mm fans on the front for intake, and 1 on the back and 1 on the top for outtake. 

Mobo: MSI B450 Gaming Plus Max

CPU: AMD Ryzen 5 3600x (stock cooler, with stock thermal paste, not over clocked)

I wasn't able to find a good graph of my CPU fan but it basically is inline with the CPU temp. It ramps up every couple seconds when the CPU temp jumps.  Any ideas why this happens or how to fix it or is this normal?

 

Thanks everyone. Best community!!

 

 

 

[YoungBlade]

This is common for AMD.

 

When in low load scenarios, the voltage increases to allow for higher boost clocks on the couple of cores being used. The CPU temperature reported in Afterburner and used by the motherboard for the fan curve is Tdie, which is a hotspot temp. The result is temperature spikes at lower load levels.