Posted: 12/2/2010 4:24:07 PM
Go into ther bios.....F2 or Delete button most likely. Bang through the menus and see if there is an adjustment for the fan.
Also get the ol' can of air and spray at the back where the heatshink is. Make sure not to turn the can upside down.
I gave it a good cleaning when I had it, but maybe a good deal of dust where you are.
Give these two things a try first.