there is slight chance that you know about my portable desktop pc hack.
but if not it looked like this:
NEVER ATTEMPT TO USE YOUR POWER SOURCE WITH INTERNAL MODIFICATIONS (INTERNAL POWER SWITCH)
what hapened: well the input voltage is 230v and switch uses max 250v.(no problem here), BUT inside voltage is 500v.. so capacitor that charges until peak on phase will hit it. it will actualy overcharge and burn your table down!!!!! (that's what you get when you're hacking 50 years old POWERSOURCE.)
ps: sorry for bad english i was been struck with 230v 8 times