And as soon as things heat up, your laptop fan runs faster, resulting in noises. Those issues usually get repaired over time. but if such a thing did exist, it would not. Another nuisance is a fan that runs all of the time, or spins up and down whenever you open a new program, etc. Don’t force the compressed air into the fans, it can damage them. It has a massive fan that can be powered from one of your USB ports. We hope that helps! If you have any comments, please tweet us. Therefore, it is very important to buy a proper and good CPU fan for your computer to avoid such kind of problem. I adjusted the lower two balls as illustrated in my previous screenshot a couple times, I think this is as good as it's going to get. Unlike desktop fans, which have more room to breathe, laptop fans are smaller. So grab a screwdriver, open up your desktop or laptop, and give it a good once-over with an air duster (or an electric duster, if things are really bad).I found a solution to why my laptop fan was running constantly and running my battery out in an hour. When the fan in your notebook fails, the usual symptom is an overheating CPU and automatic shutdown. Is it bad for my laptop fan to run constantly Keep your computer on a desk or.