Macbook pro 2011 crashing - kernel_task 300 - 450% cpu usage

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Macbook pro 2011 crashing - kernel_task 300 - 450% cpu usage

Hi, my macbook pro has suddenly crashed and no matter how many times I restart it, nothing happens. I have recently formatted it and sent it to technicians to upgrade my hard drive to ssd. When I start my mac, I get 100% cpu usage. 96% system 4% user. When I checked activity monitor, there is no process consuming that much cpu usage. Any help pls?

Edit: Problem is kernel_task taking all the processing power.

MacBook Pro (13-inch Early 2011), OS X Mavericks (10.9.4), null

Posted on Feb 28, 2015 4:33 AM

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Answer 1

Feb 28, 2015 4:37 AM in response to David Deg

While viewing Activity Monitor, be certain to select All Processes as opposed to "My Processes".

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Answer 2

David Deg Author

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Feb 28, 2015 4:54 AM in response to stedman1

It is kernel_task: 300 - 400% cpu usage 😟

Edit: Update

I connected mac with power adapter and everything worked fine! Could it be that my battery needs replacement? It still gives me 6 hours of battery life and it was nearly fully charged.. (307 cycle count, Condition: Normal)

Thanks!

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