I'm living in an Asian country and there isn't a ground connection provided on sockets here. There is only L (live) and N (neutral) so I need to use a 3-to-2 converter. It means that the ATX case does not connect to ground like in other countries and when I touch the case I feel hurt by electricity.
When using a volt meter to measure, it tells me that the computer case reaches ~80v AC between me and the computer (Ground —> Me —> Computer).
I found an ATX power supply circuit and I found that the ATX shield is connected to the ATX AC input circuit between the L and N lines and there are two capacitors in the middle.
I'm very new to electronics and I don't know why they connect the shield like that and I think it may be dangerous in my case? As I see the shield is connected directly to the L line so it's very dangerous if I don't connect the case to ground?
See the circuit here :