Power issues - 12v rail bouncing

Got a Rock PI 4 plus v1.73 that’s given me power issues (12v rail is bouncing).

Anyone know what this chip is? pretty sure it’s short and has something to do with dc.

https://drive.google.com/file/d/1dV3yRPXNLYoBMXQt5enE28d_Kq_1HZMY/view?usp=sharing