- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Replace the fan as soon as possible. If the noise suddenly stops, DON'T assume the problem corrected itself. More likely, the fan completely froze and stopped spinning entirely and you're at risk of overheating something inside. Generally, there are usually 3 fans in a desktop computer (cpu/heatsink, case, and power supply) and sometimes a 4th fan if the computer has a separate graphics card. Laptops usually only have one fan.
That is a fan causing the problem. First thing to do is open the side panel and clean out the dust, sometimes that helps. Next, with the side panel open, turn on the computer and look to see which fan is causing the noise, they are easy to replace. If it is the CPU fan it may be a more involved repair but its usually not too bad.
If the fan is failing the most times the computer will not start because it will overheat. There are two fans inside the system, one inside the Power Supply and one that sits on the motherboard.
Remove the Power Cord, Open the case, Remove the cover and with a can of compressed air blow out the dust inside the computer. Clean the dust away from the Fans, Vents, CPU and Heat Sink are that sits under the Fan on the motherboard.
There are 2 basic fans in Dell tower one for the power supply and the other for the Processor. If your computer is not booting then the Processor fan is most likely to be the culprit. What could be happening is that the Processor fan is no longer turning fast enough to cool the processor, so normal the processor when it over heats there is either protection to switch off the computer automatically or the computer won't boot. The best thing is to change the fan and make sure it is working properly but checking on the cables that they won't entangle on top of the fan to impede it's movement. You can easily damage your processor if the fan is not working properly.
Your computer's Processor/CPU fan is set to run faster when it is hot and slower when it is cool. That is why it get's quiet and loud. A clean may reduce the noise, by removing the dust from the computer system the fans will be able to operate more efficiently and effectively meaning that they won't have to spin as fast.
Install fans in your chassis to provide your computer system with freash air, an exhaust fan is also an idea to push warm air out of the system. Generally the larger the fan the quieter it will be, as a large fan can spin at a slower rate to provide the same airflow of a smaller unit.
Remember that it is that fan over the CPU heatsink that is keeping your computer alive. Overtime they can wear, replacing the fan is an option.
Any fan that is making noise you would need to replace. There is also never a need to use alcohol to clean a fan. Some computer air or a light wipe down will do just fine. If you have any other questions let me know. Thanks, Lee