Cooling systems for CPUs and internal components are standard in all laptops. Processors do millions of computations each second, each of which necessitates the use of electrical charges. If not adequately cooled, the processor will overheat after some time.
Fans are commonly used in laptops to cool components that may otherwise overheat. A laptop will usually utilize one or two fans to cool the primary CPU and graphics chip. Many designs employ a heat pipe system that reduces heat from these components, with a single fan cooling a heatsink connected to the heat pipes. The heatsink will have several fins to disperse heat, and dust might accumulate between these fins, drastically lowering cooling performance.
There's little room for ventilation because everything is packed so closely to make the laptop as small as possible. As a result, even minor levels of dirt and dust might impair the cooling system's performance.
If your laptop's fan is spinning louder or more frequently than normal, or if it just won't turn off at all, it's time for some much-needed cleaning.
Your laptop might be choking. Laptops, you see, could collect a lot of dust. Dust is considerably more damaging in a laptop since everything is so densely packed together. So when cooling fans have to run all the time, it's only a matter of time before the laptop overheats. When this happens, the laptop may freeze, the components could be damaged, or worse, it could cause a crash.
A laptop fan is usually utilized as an air circulation tool to cool down the inside of your laptop from extreme heat accumulation. The blades will rotate, directing hot air away from the components. The collection of dust and dirt particles on your laptop fan can gradually reduce the airflow speed. This may cause your laptop to overheat, resulting in a considerable performance slowdown in most circumstances, or an actual crash if the accumulation is extreme.
Do you need to clean your fans but are worried about destroying them? Not to worry! You can clean your laptop fans without dismantling them. One of the most effective ways to clean laptop fans is to soak a cotton swab or Q-tip in rubbing alcohol:
If you're not sure about taking apart your laptop, you can always use a can of compressed air to clean your laptop fans. Because the air within a compressed air can is dust-free, it is great for cleaning the dust from the inside of a laptop, including the fan. These canisters are often affordable and can be found at most electronics stores, as well as pharmacies and dollar stores.
A word of caution though that a can of compressed air is not exactly eco-friendly. Each can is constructed of metal and plastic that has been fused, and they are not usually easily recyclable.
Here's how to use compressed air to clean your laptop fans:
To avoid dust collection, your laptop fans should be cleaned regularly. The process for cleaning with compressed air is straightforward, but we don't recommend this since the pressure can't always be controlled. It could irreparably damage your fans, not to mention that compressed air cans are bad for the environment.
However, all is not lost. You can still clean your laptop fans even without compressed air but keep in mind that this process is much more hands-on and requires tearing down the laptop, which may void your warranty and risk damaging the laptop. Only proceed if you're confident about taking it apart.
To do so:
Your laptop fans will inevitably accumulate a significant amount of dust over time. Cleaning your laptop regularly is a wise practice, but you don't have to do it all the time. How frequently you should clean your laptop depends on your laptop and how dusty your surroundings may be.