The average person needs to clean his computer physically once or twice a year. Now the techniques for cleaning the casing and other external parts of a computer are self-evident — use soft cloth and weak solvents, and never apply water directly to the machine.
IT IS THE MOTHERBOARD AND INTERNAL COMPONENTS THAT MOST PEOPLE ARE
AFRAID TO CLEAN.
1) Turn off the power supply. Open up the
CPU case using a standard ‘+’ screwdriver.
2) Your best tool is compressed air, those with
strong lungs can try blowing on the computer,
but a smarter way would be to use a can of
compressed air, or a bicycle pump or a small
hand-held vacuum cleaner (not a high power
3) To clean the fan, hold it in place first — if
it rotates too much it could generate harmful
4) Be careful and use the devices directly on
the circuitry, start at a distance and move in.
5) Don’t touch anything if you are under warranty.
If not cleaned, the RAM, motherboard and
GPU will see a reduction in performance and
eventually start malfunctioning.