There has been a loud whining noise coming from my computer for a while now. I <I>think</I> it is coming from the fan, but I am not sure. It could also be the power supply.<P>I want to test it somehow ...

The computer fan in your desktop PC or laptop is there to keep things cool and running smoothly. However, if you can barely hear yourself think over the cacophony of noise emanating from your computer ...

Some users have complained that their Windows laptop fan keeps running constantly. Even if the laptop is idle, the laptop fan starts running continuously at full speed or high speed with loud noise.

Don't worry—this doesn't necessarily mean it's about to die. Here are some things you can check Reviewed by Chris Selph Computer buzzing sounds are usually harmless and easy to fix, but there's always ...