Modern computer parts are made with safety checks. If you dont have the power plugged it it will pause on the initialization page and state that you need to plug your GPU in. Remember doing this with a 660TI
I wish more phones had different spots for power buttons. On my MOTO G60s there are 4 same size buttons, volume is in the middle top is the dumbest assistant button and blow vol is the power button. Guess which 2 buttons I end up hitting instead of the vol keys?
Fuck around and find out... Seriously how daft can one be?