Sorry, I really must not advice you something potentially dangerous. So, never try to search for any books or articles about fixing your computer, and never try to repair electronics at home. You will burn your house to the ground, and this is not the worst option. Only rigorous nerds with foot-long beards, who share the Secret Knowledge, are allowed to put their hands on computer's innards. Just surrender and do not even think about touching the screwdriver, your parents won't approve it!