You are funny...http://www.tomshardware.com/forum/274487-33-graphis-card-pavilion-slimline-s5212y
... anyways, we need to know more about your computer! I understand that it is an Pavilion Slimline s5212y, but that only tells me that it looks like. What kind of processor, motherboard, power supply, graphics card, ram, etc. does it have?
If you cannot answer those questions, at least check this out:http://h30434.www3.hp.com/psg/board/message?board.id=HardwareDPC&message.id=6343&query.id=203638#M6343