How can I reduce the heat and fan noise coming from my computer?
The electrical components in a computer generate heat, and fans inside the computer help move the air to keep the components cooled to normal operating temperatures. Inadequate cooling can cause excess heat which forces the fan to run constantly, can potentially damage components, and limit the speed of the CPU. Excessive heat can also cause applications to work slower than normal. The sound of the fan running all the time may the first clue that your computer may not be running as efficiently as possible and that you could have a problem with accumulated dust clogging air vents.
Dust and lint on heat generating components and fans:
Most notebook and netbook computers have vents in the bottom and sides to allow air to flow through the case. On a desktop computer the vents are generally located on the side or back of the chassis. If these vents become clogged or heat generating parts become covered with dust, the fan cannot cool the components properly. Lint and dust accumulation prevents air from flowing around the cooling fins and causes the fan to work harder. If there is dust in the vents, you should clean the computer by using a small vacuum to remove the dust from around the fan and heat shield.
Removing dust and lint by cleaning vents:
Caution: Ensure that the computer is turned off and the AC adapter or power cable disconnected before spraying with compressed air to prevent damage to your computer.
The accumulation of dust can often be observed on the vents in the computer's case. You can use a small vacuum or can of compressed air to help remove the dust and prevent overheating. Removing the dust will increase the air flow to improve cooling and allow the fan to run quieter.
Caution: Some canned air can produce a liquid residue which ejects from the can in the air stream. This residue can damage electrical components. Ensure that you are using zero residue compressed air and observe the directions on the can.
The cooling vents are located in various places depending on the computer model. You can identify the vents by looking for the copper or black fins inside the vents. You should also vacuum other openings such as the fan intake vent. This will help keep the air circulating and prevent dust from accumulating on components.
By taking this action periodically as a preventive measure, you can greatly reduce the possibility of component damage and prevent the slowdown of the computer's performance.
If this does not help and you believe your computer is overheating, the computer may need further troubleshooting or repair. Please contact Acer support for further assistance.