Noise from computer
Below is a listing of components within the computer that may cause unusual noises to be generated. To determine what components are causing your issue, verify that lights on your hardware devices, such as the CD-ROM drive, are not on when the noise is being made. If you are only encountering excessive noise when a device is accessed, it is likely that the device is causing your issue.
If the noise you are experiencing is occurring the entire time the computer is on, it could be any of the below devices. Distinguish what device is causing the noise by reading through each of the below sections.
cd-rom, dvd, fan, ,hard drive, modem, power supply.
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