asked on iMac mid 2010 27" is screaming at me
I have an iMac 27" mid 2010. When it is being used to watch You Tube videos it will make a supersonic screaming sound and must be physically turned off with the power button. The computer just stops working. Could I be looking at a failing hard drive or fan? Any ideas will be appreciated.
Mac OS XApple Hardware
Last Comment
David Anders
ASKER
I have seen it do this with just normal use, not using the sound. The sound does not seem to come from the speakers and when this happens there is no control for anything.
Note: Maybe I should have used the analogy of a sound like a 600 cycle generator on the flight line in the winter in Alaska....That is loud :-)
Note: Maybe I should have used the analogy of a sound like a 600 cycle generator on the flight line in the winter in Alaska....That is loud :-)
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ASKER
Thank you for the heads up. I will try the solution.
Easy test:
Get a can of compressed air, remove the memory cover (the vent at the bottom center) then when it makes the noise blow some bursts of air at the noise, probably straight up. If the noise changes with the air, it's absolutely the fan.
Get a can of compressed air, remove the memory cover (the vent at the bottom center) then when it makes the noise blow some bursts of air at the noise, probably straight up. If the noise changes with the air, it's absolutely the fan.
ASKER
Will Do!
Resetting the SMC is often suggested as a first step.
https://support.apple.com/en-us/HT201295
Google "imac fans loud"
https://support.apple.com/en-us/HT201295
Google "imac fans loud"
if the sound is coming through the speakers, then it is possible a problem the sound card
supersonic - when an object goes faster that the speed of sound... ;-)