How to Reduce Fan Noise
Noisy CPU (Central Processing Unit) fans not only are annoying, but they also are potentially hazardous to your computer. Your computer's cooling fan system sits directly on top of the CPU chip. Its main function is to keep the processor chip from overheating. If the CPU becomes too hot, it can damage the motherboard. When the fan gets too noisy, it means the fan motor needs to be oiled. If you do not deal with this issue promptly, your fan's motor eventually will stop working.
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Things You'll Need
- Phillips-head screwdriver
- Thin, flathead screwdriver
- Lightweight mechanical oil
Instructions
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Removing the Fan
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1
Shut down your computer using its normal operating system. Disconnect all cables and devices from the computer. Touch an unpainted metal surface to discharge static electricity from your body before attempting to dismantle your computer.
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2
Position the computer tower so the rear panel is facing you. Remove or disengage any fastening material or devices securing the right side access panel to the computer. In most cases, this includes a few retention screws or a locking lever. Remove the side access panel from the computer. Lay the computer on its left side.
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3
Locate the fan near the center of the motherboard. Remove any hardware obstructing access to the fan. Remove the screws fastening the fan assembly to the motherboard. Disconnect the fan's power cable from the motherboard.
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4
Lift the fan out of the computer, and set it aside.
Lubricating the Fan's Motor
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5
Place the fan on a flat surface with the label sticker facing up. Use a thin flat-head screwdriver to peel away the label sticker.
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6
Use the flat-head screwdriver to pry out the rubber plug revealed by the label sticker. This plug will give you access to the motor's bearings.
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7
Apply a drop of lightweight mechanical oil into the fan's motor. Replace the rubber plug and the fan's label sticker.
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8
Reinstall the computer's fan by repeating the fan removal procedure in reverse. Power on your computer to see whether the fan is any quieter.
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Tips & Warnings
If lubricating the motor does not work, you might have a bad CPU fan. If this is the case, follow this procedure to install a new CPU fan.
Use an electrostatic discharge (ESD) wrist strap as you dismantle your computer to prevent electrical damage to the motherboard. If you don't have access to an ESD strap, touch an unpainted metal surface to discharge static electricity from your body and ground yourself.
