What you need
- Screwdrivers (at least a Phillips-head)
- Dust mask
- Earmuffs (recommended)
- Air compressor
- Angle nozzle air blow gun
- A garage, lab or open space easy to ventilate
What to do
- Shutdown and unplug the PC from the electricity supply and remove the computer case
- Unplug the power cable from PSU and clean the cable sheat with a dust cloth
- Remove the Power Supply Unit using a Phillips-head screwdriver and holding the PSU firmly to avoid to damage motherboard and other components
- Wear a dust mask and eventually earmuffs
- Power on the air compressor to clean the PSU fan, cables and connector
- If there are additional aeration holes clean them with short blows until you’ll see the internal components shine
- Clean the external chassis of the PSU with a dust cloth and then insert the PSU back into the computer case keeping it firmly when you tighten the screws
