The computer fan is designed to keep the integral parts of your computer system from overheating.
Laptop cooling fan hack.
If the internal drive of the system heats up you will be at the peril of permanent data loss.
In the event of cpu fan failure the components may overheat leading to damage.
Also you need a laptop cooler that you can buy or make.
While operating the fans generate an acoustic tone known as blade pass.
If you want to use with laptop power then don t use step up converter just directly connect usb to fans and it will take 0 7a 0 14x5 0 7 speed will be slow.
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Make sure the fan on the laptop cooler is placed near the cpu and gpu.
Most laptops require you to unscrew some screw s and then you have acess to the main board.
Top 5 best life hacks for cpu fan you can subscribe here.