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It's about 3 days that I can't do anything with my macbook air because the kernel_task is eating up the CPU. So I found this but the command csrutil disable/enable doesn't work on the terminal (El Capitan) and I found out that some models doesn't know this command but I couldn't find how else I can disable SIP (system integrity protection). So the questions is that how can I solve this problem with kernel task? enter image description here

Nebula
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  • SIP has nothing to do with what's allocating kernel_task. Can you show us a screen capture of your Activity Monitor? – Allan Sep 27 '18 at 15:40
  • @Allan I need to disable SIP for deleting those .kext files. I'll upload a screenshot now. – Nebula Sep 27 '18 at 15:47
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    Don't delete kexts until you know what the issue is. – Allan Sep 27 '18 at 15:58
  • @Allan So what do you suggest here? – Nebula Sep 27 '18 at 16:07
  • First thing... see this post: https://apple.stackexchange.com/questions/179150/kernel-task-hundreds-of-cpu-yet-cpu-frequency-is-being-lowered – Allan Sep 27 '18 at 16:11
  • @Allan So finally I could find the right screws, and I reset the SMC. But it didnt solve the problem:/ what should I do now? – Nebula Sep 30 '18 at 13:48
  • I'm not sure what "screws" have to do with anything, but there's "something" causing kernel_task to temp throttle your CPU. Try running AHT - Apple Hardware Test. Hold D while booting from a powered off state with the AC adapter attached. Also try running in Safe Mode to see if that solves the problem. Keep in mind it could be hardware related (a malfunctioning sensor or even SMC chip) – Allan Sep 30 '18 at 15:04
  • @Allan My mistake, Actually I meant I could find screwdriver for removing the screws, maybe no need to mention that;) I'm running AHT now, I'll tell the results. Actually its LCD has problem but I dont think that is the reason to the problem. – Nebula Sep 30 '18 at 16:30
  • Huh? What? No idea what you talking about. – Allan Sep 30 '18 at 16:33

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So after resetting SMC, rebooting safe mode and every other solutions that is suggested on different forums, changing the battery solved the problem!!! By the way, the battery was changed last year and it didnt need repair!!!

Nebula
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