What is this chirping/squeaking noise coming from my iMac?
I have an iMac which has started making a regular squeaking/chirping noise which seems to be coming from the bottom right hand corner of the machine (just above the usb ports and just below the optical drive). I notice that if it is making the noise when I put the computer to sleep, the sounds dies away - as if it is the fan or the hard drive as it stops spinning. Any ideas how serious this is and whether I should replace anything? I have installed software to monitor my hard drive and disk temps and fan speeds and all seems to be okay for now. Also a little afraid of trying to do the fixit work myself.
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