One of the two fans underneath my laptop computer began making some TERRIBLE grinding noises, so I unscrewed the laptop’s case, and vacuumed out a big clot of dust and debris from the fan’s housing.
This did not actually solve the problem entirely; it was still making loud whirring noises whenever it was rotating quickly (though it was largely quiet before its high-speed setting kicked in).
Then I simply shut the computer off for 24 hours. When I restarted it, it made the same terrible whirring noises, but after about four hours of operation, the fan suddenly returned to its normal noise levels.
The fans are still operational and my diagnostic software says the computer temperature is at normal levels, so, it seems to be operating correctly.
What happened? Is it possible for a fan problem to linger after an obstruction is removed, then spontaneously resolve itself later on?
This particular laptop is somewhat older (about 4 years of age).
Tagged with: debris • diagnostic software • high speed • laptop computer • noise levels
Filed under: Computer Diagnostic Software
As the fan motor’s bearings wear out you will get quite a variety of noises especially when running hot or cold. I’d wait till it breaks, tap it if really making a lot of noise that often stops them, if it lasts years you might even get a new machine before the fan dies.
Get a laptop fan for as low as $19. Since you been have using it for 4 years for 24hrs. I recommending you to get a laptop fan where you put the fan flat on the table and put the laptop on top of it. EASY
It is possible that you somehow dislocated your fan blades a bit when you vacuumed it and after operating for a while the pressure from sucking in the air reseated the bearing. I can’t think of any other explanation.
it could be from the heat warping parts or it could be the fan has become loose or it could mean that there are pieces inside the case.
its really hard to know unless its opened.
Dirt on the blades can cause them to be out of balance and they will make noise if the fan blades are rubbing on the fan body or something else. It can also cause the bearing to make noise. Once you removed the better part of the accumulated dust, it got a little better. Perhaps the offending dust was dislodged and it’s closer to being perfectly balanced and therefor quieter.