27' imac fans start @ full speed when booting up. Shutting down unplugging has same problem.

27' imac fans start @ full speed when booting up. Shutting down unplugging has same continuing problem.

Doesn't always occur. OS 10.10.5 . Any ideas to correct?

Posted on Sep 20, 2016 9:35 AM

Reply
1 reply

Sep 20, 2016 11:06 AM in response to fasteredde

Open console in Applications>Utilities, check the system log for the date/time of the last problem & the Startup right after that for clues.


Click on the top line we want, Shift plus click on the bottom line we want, CMD+c to copy, then paste the text in a reply with CMD+v


A few dozen lines should be about right, hundreds or thousands won't likely be readable

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27' imac fans start @ full speed when booting up. Shutting down unplugging has same problem.

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