My sister has a hp pavilion dv-2000 laptop. Yesterday evening I playfully inserted a pen's nip in it's provided expansion port which resulted in some amusing sparking. This followed with the screen going black.
Later analysis showed that none of the keys were working, usb ports were not working, external monitor was also black.
I diagnosed that the motherboard is fried, but I am not sure. Please tell me how to be sure what has happened, also give possible solutions.