12-Core MacPro (2013) kernel_task over 1200%


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# 15  
Old 6 Days Ago
Hi Neo...

Having dealt with Apple with my old MacBook Pro, under extended warranty, the unit was effectively fixed the same day, new HDD required.
(My choice to pick up the next day.)
IIRC their diagnostics was through the "ethernet" port on my old machine and I was relatively impressed with how it worked.
(Said machine runs dedicated Linux now.)

I have heard NOT particularly good reports of some APPLE outlets but ours here in Leicester, UK was good.
YMMV in your area of the USA.

Good luck with your serious tool, and I hope all is fixed at a sensible price soon...

Bazza.
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Neo (6 Days Ago)
# 16  
Old 6 Days Ago
Thanks Wise,

I'm in Thailand (on the seaside) and we have great Apple service here.

Recently my MacBook Air 2013 died and I went to Apple and paid them a small fee (around $28 USD) to check it out. They did a full analysis (it would not power up at all) and their Apple techs told me the logic board was bad. They quoted around $600 to replace.

I took that MBA to some local repair shop and they fixed the logic board for about $200 dollars and it works great. That's much better than the $600 for a logic board or nearly $2000 for a new one I don't really need.

The only thing I don't look forward to is lugging the heavy MacPro up there, since it is a lot heavier and bulkier than my little MBAs.
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wisecracker (6 Days Ago)
# 18  
Old 6 Days Ago
Yes, 20 times at least....

Follow these steps for iMac, Mac mini, Mac Pro, and Xserve.
  • Choose Apple menu > Shut Down.
  • After your Mac shuts down, unplug the power cord.
  • Wait 15 seconds.
  • Plug the power cord back in.
  • Wait 5 seconds, then press the power button again to turn on your Mac.

Did not help at all....
# 19  
Old 6 Days Ago
Hi Neo...

In my experience 15 seconds seems short. Try a few, (say 10), minutes to let all charged capacitor passives return to zero or near zero...

Bazza.
# 20  
Old 6 Days Ago
Yes, I tried for many hours, a few times, sometimes for 20 minutes, etc, but I will try overnight again before lugging the beast to Apple.

Thanks for reminding me to try an "overnight unplugged" test before throwing in the towel.
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wisecracker (6 Days Ago)
# 21  
Old 6 Days Ago
'top' command.

Hi Neo...
(Hopefully this is s separate post and NOT attached to the previous...)

Just had a thought.
Have you tried single user mode: Boot from "cmd and s' into console mode and run 'top' to see if the error is still on early startup?

Then 'exit' and see how it boots to GUI mode...

Bazza.
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