How to Clean a Computer's Insides Safely

By eHow Computers Editor

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Computer fans pull a lot of dust inside the chassis. If undisturbed, the dust can interfere with ventilation, eventually causing parts to fail. If you have a service contract that covers maintenance, have your computer taken apart and professionally cleaned. Otherwise, follow these steps.

Instructions

Difficulty: Moderate

Things You’ll Need:

Step1
Check your owner's manual. If the manufacturer has provided specific instructions, follow them.
Step2
Get any supplies you might need: a can of compressed air, Endust for Electronics or any household plastic or metal cleaning fluid, a soft brush (such as a paintbrush) and an anti-static rag, plus a dust mask if you're allergic to dust.
Step3
Shut down the computer.
Step4
Leave the computer plugged into the surge suppressor.
Step5
Disconnect all peripherals from the computer.
Step6
Remove the computer cover (see your owner's manual for instructions).
Step7
Ground yourself to the computer with any professional grounding equipment you have. Otherwise, ground yourself by touching a metal part of the chassis.
Step8
Spray compressed air on the fan blades, power supply chassis, drive chassis and circuit boards.
Step9
Gently brush off dust that the forced air didn't dislodge.
Step10
Brush any remaining dust out from the bottom of the chassis.
Step11
Spray Endust for Electronics or another cleaning fluid onto an anti-static rag.
Step12
Wipe the inside and outside of the cover thoroughly.
Step13
Replace the cover and reconnect the peripherals.

Tips & Warnings

  • If possible, work in an uncarpeted area.
  • Be careful not to touch any chips. Touch as little as possible inside your machine. Static damage (and even oil damage) may cause a failure months after the incident.
  • Some sources recommend using a regular or specialty electronics vacuum cleaner. These appliances could cause magnetic damage or static electricity, or dislodge or inhale poorly secured chips or components.

Comments

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jimdris

jimdris said

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on 11/5/2007 Spraying compressed air too close to components will cause frost and/or condensation to form on them. Use short burst from further away to prevent this!

Jeff

Jeff said

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on 3/24/2007 cleaning- I use compressed air to clean mine, but do heed the warnings about holding the can upright. If you freeze some components, you'll likely be looking at replacing some parts. Cleaning is not extremely complicated, but you should be cautious and make sure no cables/wires come unplugged.

Anonymous

Anonymous said

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on 1/30/2006 After you've cleaned your computer (or when purchasing a new one), put fabric softener sheets over your air intakes. Generally, these are not the fans, as those tend to blow outward; they're usually just grated holes in the casing. There's usually one in the rear and one in the front (you have to remove the front panel to access the front vent).

Anonymous

Anonymous said

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on 1/9/2006 The tip about positive air pressure is only helpful when the intake fans are filtered (filter attachments are relatively cheap, and simply screw on to the fan).
If the intakes fans aren't filtered, all the dust and dirt you don't want is just being sucked in faster. Also, remember that the outtake fans should not be filtered, or else you will be trapping in the dust.

Last, you will never have more air going out than in, or your computer will become a vacuum chamber and implode (probably not a good thing). Your best bet would be to plan the airflow so you don't have two intake fans blowing against each other, by putting intake in front and outtake in the back (or vice versa).

Anonymous

Anonymous said

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on 12/8/2005 I like to make sure my fan is really clean. Most of them are fairly easy to remove with either a clip or a precision screwdriver. If you need to remove a clip, pay close attention to how the clip goes on and off. Then, grab a dry, old toothbrush (a must in any computer cleaning kit) and happily brush the fan clean. Continue as above.

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eHow Article: How to Clean a Computer's Insides Safely

eHow Computers Editor

eHow Computers Editor

Category: Computers

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