Ryzen CPU temperatures playing yoyo

[Fartyxxx]

Hello,

I have a Ryzen 5600h CPU on which I replaced the Thermal Paste.
On the following graph are the temperatures CPU (tctl/tdie) before the thermal paste replacement (green line) and after replacement (red line)
Both recordings where made with max fan RPM and shows the last 15min of a gaming session.
Have you an explanation why the temperatures of the CPU is playing yoyo after thermal paste replacement?

 

[Zach]

Because now that temp is lower the CPU has the thermal headroom to boost more when needed.
You should now monitor temp along with CPU PPT, EDC and CPU clocks. All those should match each other closely.