When turning on computer, occasionally CPU temps max out

I recently built a new PC (Ryzen 7 9800x3d and Lian li trinity ii performance AIO). Everything has been mostly fine except twice now, when I boot my computer in the morning the CPU temps have maxed out and the AIO fans go to max. Doing a hard-reset solves the issue, but its happened twice now and I'm not sure if my pump is breaking or not.

Anyone seen anything similar before? Is it possible I added too much thermal paste and it is causing issues?

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