10.3 Computer/Peripheral Hardware PM
10.3.1 Computer
There are many things that can cause a computer system to fail physically. The most common are dust buildup, extreme temperatures, and rough handling. How dusty or static prone the area is where the PC is placed will determine how often it will need to be cleaned.

If a computer is not regularly cleaned, dust can build up on the components inside the computer, such as on the fan bearings or on the printed circuit boards. If there is a large amount of dust buildup on a fan, it could cease operation and cause the system to overheat. This is especially true with newer CPUs. If the processor fan ceases to work, the computer will either malfunction or completely shut off, and the processor can be damaged.

For these reasons, keeping the inside of the computer clean is very important. In order to clean inside the computer case properly, unplug the unit and move it away from other equipment. Use a can of compressed air , making sure to follow the directions carefully, to blow out all of the dust within the case. This simple process should be done at least once a year in not very dusty areas and two or three times a year in very dusty areas. This process will serve two purposes. By removing the dust, the motorized components will work more efficiently for a longer period of time. It will also keep dust from building up, which will reduce the chances of an ESD from the dust.

Another hazard to computers that should be avoided is extreme temperatures. If a computer system overheats, there are several problems that can occur, such as system malfunction and data loss. To prevent this, make sure the ventilation mechanisms of the case are properly functioning and the room is at a comfortable temperature.

The last thing that could cause damage to a computer is rough handling. When moving the system from one place to another, care should be taken so as not to loosen any components inside. If a component becomes loose while the machine is turned off, it could be damaged when the unit is turned back on.