Iirc Dell laptops have a Prochot flag which can get triggered by ex. off-brand charging brick or battery. I guess that screw was shorting something, which in turn would trigger that flag and throttle the CPU clocks
"Finally"
Iirc Dell laptops have a Prochot flag which can get triggered by ex. off-brand charging brick or battery. I guess that screw was shorting something, which in turn would trigger that flag and throttle the CPU clocks