Link to home
Start Free TrialLog in
Avatar of Dennis Pillow
Dennis PillowFlag for United States of America

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.
Avatar of Paul Sauvé
Paul Sauvé
Flag of Canada image

does this occur event with the speakers off?

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...    ;-)
Avatar of Dennis Pillow

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 :-)
ASKER CERTIFIED SOLUTION
Avatar of Aaron Tomosky
Aaron Tomosky
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
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.
Will Do!
Resetting the SMC is often suggested as a first step.
https://support.apple.com/en-us/HT201295

Google "imac fans loud"