mere pc chal raha tha achanak lite band ho gai or aik hour bad ayi to maine pc on kiya pc theek thak chal raha hai mother bord ka b display ata hai jb window welcom tak display ata hai phir menu ka display nai ata sirf awaz ati hai na lcd ma problm hai na cabl ma pc me problm hai koi exprt bhai help kr day kya masla aa raha hai