11-07-2010, 09:31 AM
If it's a laptop your most likely damaged the case/had something on it that pushed the case into the fan. This happened to my Acer Aspire One. I just waited awhile and it fixed itself, Either that or I got used to it. (Look for indented parts on the casing, and take the casing apart, try popping it out) For desktops and laptops alike open it up and CLEAN THE FAN. Sweep it, blow on it. There is alot of dust that gets clogged up in the fan so just clean that and it runs smoothly.