这里有个帖子讨论的很详细.你看看.如果还在保修期,找DELL
http://forum.us.dell.com/supportforums/board/message?board.id=dim_bios&message.id=22620&view=by_date_ascending&page=1
http://forum.us.dell.com/supportforums/board/message?board.id=dim_bios&message.id=22620&view=by_date_ascending&page=1