What kind of screw driver of computer power supply? What kind of model do you want to clean?
I often fix the power supply and use a small cross screwdriver. I just measured the screwdriver and the bar was about 4 millimeters in diameter. The big one is no good, the screw of the power supply is smaller.
A screwdriver of a normal size can open the case cover. Do not deliberately want what type of?
