Hi,
I bought a brand new Toughpower Grand 850W PSU yesterday, after fixing everything I switched it on for first time and everything worked fine.
But to my surprise the power button on back side is not clickable any more, I am trying to switch it back off but it clicks back to on condition like an "Alarm" switch which goes back to its old position when you release pressure.
The worst part is I got my first PSU which was Toughpower Grand 750W which I bought a day before replaced same day with this new one because of same problem.