I have Macbook Pro Retina (Late 2013) with installed El capitan.

Sometimes OSX just freezing and I can do nothing, but to reboot (by holding power button for a few seconds). All apps are continue running, for example media player or torrent client. But keyboard or trackpad doesn't respond.

I read lots of manuals, I tried reset different settings, clear user's cache. I even tried reinstall OSX (without formatting the drive). It's not helping.

I don't have much experience with OSX, so I don't know where to look for a problem. Any thoughts what should I do?

  • I don't have any special software installed. Just regular stuff, like Chrome and Skype. Plus some apps for webdev - Jetbrains software, plus homebrew with php/ruby, etc. I checked the list of software, and don't see anything unusual. I also can't find the pattern here, because this problem can happens any time, when different apps are launched
    – user159846
    Dec 2, 2015 at 10:13
  • Did you check this? support.apple.com/kb/PH21879 Dec 2, 2015 at 10:19

1 Answer 1


Try using Apple Diagnostics to check for hardware issues: Restart your computer, then hold down the D key while the Mac restarts.

Check Apple knowledge base on this subject - https://support.apple.com/kb/PH21879

If you get an error-code, check this page for how to follow it up: https://support.apple.com/en-us/HT203747

  • yes, I did it, it doesn't shows anything
    – user159846
    Dec 3, 2015 at 12:03
  • hm, I run it second time and I got this error: PPT004 The battery requires service. The battery is not functioning normally, though you may not notice a change in its behavior or the amount of charge it holds. You can continue to use your battery before its checked without harming your computer.
    – user159846
    Dec 3, 2015 at 12:13
  • It seems that your macbook is somewhat unstable. Check this link for suggestions on what to do for this error-code: support.apple.com/en-us/HT203747 Dec 3, 2015 at 13:06
  • Diagnostic tool offered to bring my Mac to Apple Care, but I'm away now, will do it next week. It said I have coverage for it. But can this battery issue, cause freezes?
    – user159846
    Dec 4, 2015 at 1:14
  • I do not know much about power-handling in on portable components, but I would guess that if a component get irregular voltage input, it may cause the system to freeze. Some components may be more tolerant than others. Dec 4, 2015 at 12:34

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