yeah, to anyone who doesn't know what they're doing, DON'T OPEN YOUR PSU's.

They can store a huge amount of electricity for a long time even after not being used for a while, you need to discharge whatever is stored in the capacitors.

Monitors can hold enough to kill you aswell when opened up.(Unplugged even)

Leave it to people who know what they're doing!

Seems DaY seems to know what he's doin, so thats alright