- Clean the fans
A common first step is to clean each and every fan in your PC. This includes your CPU fan, external fans, and your power supply fan (although you should not separate this fan from its unit).
The fans inside your computer are there to keep it cool. Do you know what slows a fan down and then eventually makes it stop? Dirt, in the form of dust, pet hair, etc. It all finds a way into your computer and much of it gets stuck in the several fans.
One of the most effective ways to cool your PC is to clean the internal fans. There’s a fan on the top of the CPU, one inside the power supply, and usually one or more on the front and/or back of the case.
Just shut your computer off, open up the case, and use canned air to remove the dirt from each fan. If your computer is really dirty, take it outside to clean or all that dirt will just settle elsewhere in the room, eventually ending up back inside your PC! Blast them with a can of compressed air to get rid of loose dust, and clean the blades with your cloth and the alcohol.
Simply cleaning the fans will create a big change in your PC. Dust settles in your PC because your fans are clogged or under-performing. If you take your PC to a repair shop, this is often the first thing PC repair technicians do.
Other parts will require a quick once-over will your cloth. Do not worry about leaving your PC dust-less. Just try to clean as much noticeable dust as possible.
1. Upgrade Your CPU Cooler
Your CPU is probably the most sensitive and expensive part inside your computer. It also has the most potential to overheat. Unless you’ve replaced your CPU fan already, the one that’s in your computer now is probably a bottom-of-the-line fan that cools your processor just enough to keep it working properly, and that’s assuming it’s running at full speed.
Many companies sell large CPU fans that help keep CPU temperature lower than a factory installed fan ever could. Some computers use mediocre CPU fans that wear out quickly. If you’ve never replaced yours before, you might want to upgrade now. A new CPU fan will likely be better than what you have now.
Upgrading any fan in your PC will automatically cool all other parts by achieving better airflow. There are two essential types of upgrades you can make to your CPU cooler: bigger or liquid. Both are definite upgrades from a stock CPU cooler.
Larger CPU coolers will provide bigger heat-sinks and fans, which will dissipate a larger amount of heat from your CPU. This is due to the larger surface area of the heat-sinks which absorb larger amounts of heat cast from CPU activity. Larger CPU fans and heat-sinks require a larger space, so make sure your cooler will fit your case before springing for the largest you can find.
Liquid coolers, on the other hand, don’t require much space around the CPU. Instead, they absorb heat through specific liquids and cool the liquid using a large radiator mounted within your case. Liquid coolers are more difficult to install, given the radiator mounting.
Even if you aren’t having immediate overheating problems, remember that a cooler PC is a happier PC. Keep your components clean, your cables managed, and your PC away from overly hot conditions to have it running optimally.