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Apple Computing Products:
macOS - Notebook Hardware
MacBook Air: kernel_task high CPU %, fan on but no heat?
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<blockquote data-quote="nancykc" data-source="post: 1714569" data-attributes="member: 376442"><p>I retract my statement, lol. Within 24 hours the same problems came back. After a week of observation my MBA vacillates between 2 problematic states:</p><p>(1) Battery not recognized, normal CPU activity, does not turn on for several hours after shut down or SMC reset. Fan constantly audible.</p><p>(2) 200-300% CPU usage of kernel_task, slow functionality (due to kernel_task). Fan constantly audible.</p><p></p><p>Apple Support has recommended that I visit the Genius Bar again or do a complete erase and re-install of an older version of OS X.</p></blockquote><p></p>
[QUOTE="nancykc, post: 1714569, member: 376442"] I retract my statement, lol. Within 24 hours the same problems came back. After a week of observation my MBA vacillates between 2 problematic states: (1) Battery not recognized, normal CPU activity, does not turn on for several hours after shut down or SMC reset. Fan constantly audible. (2) 200-300% CPU usage of kernel_task, slow functionality (due to kernel_task). Fan constantly audible. Apple Support has recommended that I visit the Genius Bar again or do a complete erase and re-install of an older version of OS X. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
MacBook Air: kernel_task high CPU %, fan on but no heat?
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