or i think it's my fan. it's something for sure. it makes the loudest noise EVER! well it's not that loud but it's pretty loud. it's not that normal SHHHHH noise. it's a ehhhhhhhhh noise. i have a p4 1.8 ghz dell dimension 8200. is there someway i can make it less loud without opening it up? and if i have to what do i have to do?