![smc fan control temperature smc fan control temperature](https://newstechtoday.files.wordpress.com/2020/01/smcfancontrol-9.jpg)
I suggest using free tools like CoconutBattery. The fan will run at high speeds for a longer duration on the flip side. Since Mac is overheating, the fan does its best to dissipate heat. Overheating is a probable cause of loud fan noise. Please note that fans run for a relatively long time when Spotlight indexes your hard drive. Ideally, the fan noise should die out in minutes if not, proceed to the next step. Check apps with the highest CPU usage, and close the apps you don’t need.Open Activity Monitor → Select CPU Column.Identify resource-hogging apps using Activity Monitor.
![smc fan control temperature smc fan control temperature](https://a.fsdn.com/con/app/proj/macfan/screenshots/234241.jpg)
Most importantly, you can close other apps using graphic-intensive apps like Lightroom CS5 or Final Cut. Furthermore, scores of open browser tabs add to the problem.
![smc fan control temperature smc fan control temperature](https://img.informer.com/screenshots_mac/344/344209_2.jpg)
Use Activity Monitor to check CPU usageĬhrome browser is notorious for sapping computing resources.