Your computer's internal fans ensure that air flows smoothly throughout the interior and keeps the computer cool. Case fans replace the hot air from inside with the cooler ambient air from outside. While your central processing unit's fan does most of the cooling inside the computer, other components can heat up, requiring a case fan so that air can be recycled to maintain a standard operating temperature. Before you get a case fan, however, you must first measure the spot inside your computer where you want to mount it.
- Skill level:
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Things you need
- Phillips screwdriver
- Tape measure
- Antistatic wrist strap
- Cooling fan meeting mounting area specifications
Shut down your computer. Remove all cables from your computer and turn the computer so the back faces you.
Remove the two or three screws holding the right cover. Pull back the cover until it frees up and lifts off.
Use a tape measure to measure the distance from the two screw holes on the bottom to the two holes on the top of your fan mounting area. Use a fan of the same measurement in millimetres.
Shut down your computer. Remove all cables from your computer and turn the computer so the back faces you. Remove the two or three screws holding the right cover. Pull back the cover until it frees up and lifts off.
Align the fan's corner holes to the holes on the mounting area. Keep the side with the power cable facing inside the computer.
Insert screws in each of the fan corner holes and screw them in one by one. Do not tighten the screws. Just screw the screws in enough to hold the fan up to the mounting area.
Find a Molex 4-pin connector just like the one on your fan's power cable leading from the power supply inside your computer and connect it to your fan's Molex connector. Tighten all screws holding the fan.
Reassemble your computer and connect its cables. Turn the computer on and watch for your fan spinning. If your fan does not spin, you must review these steps again to see what you might have done wrong.
Tips and warnings
- Wear an antistatic wrist strap when working inside your computer. This will prevent electrical damage to your computer's hardware.
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