posted on Mar, 5 2011 @ 07:19 PM
reply to post by paranormal78
That is the bearing going out on a fan. If it is coming from deep in the computer case, then it’s the CPU, or AGP fan. If it is the power supply
fan, then you will hear the sound coming out of the back of the power supply louder than you will hear it in the computer case.
If the fan in the supply is bad, and you are technically competent, then you can replace it, I have done it many times. But for most people, it will
be easier, and safer to just buy a new supply.
Just open the case, turn on the computer and wait until it makes the noise. Put your thumb on the hub of the cpu fan to stop it from spinning. If the
sound quits, then you have got your problem. If the sound quits when you put your thumb on the AGP fan to stop it from spinning, then that is your
problem. There may be other fans in the computer than could also be causing it. So look around in the case.
And it is also advisable to not hit the case when the computer is running, that is a sure way to screw up your hard drive.