32 or 64 bit ?
u can't turn it back on until 1 hour .. in what status ? how it's not working ?
can you check your RAM after turning off if they are so hot ?
did it turn off just when u playing a games ? and if there a special game ?
I push the power button and nothing happen. The light on my lcd is also gone. So I suspect it's the PSU
No special game
And as I said this happen after I replace my GPU from GT 430 to GTX 560 ti