no no no...you need to update the bios before installing your new cpu, the updated bios will recognise your old cpu and your new one as well. beware though, before doing anything....backup your current bios, then update to a new one...after that power your computer off (even from the mains) and then put your new cpu in, then reboot the computer and you're done...similar post https://ca.answers.yahoo.com/question/index?qid=20070719165331AAu9vU7