[REGRETS...inadvertently clicked "Solved" on a response to the original post...an action which--apparently--cannot be corrected. Because problem remains unsolved...reposting this request with apologies to all!]
Dear Mac OS X Mavens,
Your assistance & suggestions are valued, invited & requested.
While I'm not certain there is a distinct cause-and-effect relationship, approximately coincident with upgrading to OS X 10.11.4, several times a day my machine (iMac 27" Mid-2010 with 2.8 GHz Intel Core i5 and 16Gb) suddenly spikes to 100%...full fans...and so completely unresponsive that only a "press power button for ~7 seconds" (aka, "Hard Reboot") evokes any response at all (and that is...shutdown!).
Notes RE: 100% Phenom:
- Activity Monitor is a victim too...it doesn't update.
- Console Logs do not seem to update (at least, what's visible).
- Command-Option-ESC doesn't respond.
Because I rarely use the Console.app--although I've read through the logs--I'm unable to isolate any log entries which might reveal what's causing this oh-so-irritating-and-far-too-frequent problem. At the moment, I have two conjectures as to cause:
- One, the cause has something to do with OS X 10.11.4.
- Two, the cause is attributed to an adverse interaction (e.g., a race condition) between two running processes.
Whether the cause reflects one of my two conjectures, or not, it would be enormously helpful to know where--and how--to look in the Console.app logs after a Hard Reboot as part of this debug quest.
Your thoughts? Suggestions?
Thank you very much in advance for any assistance your care to provide!
Best,
Plane Wryter
OS X Yosemite (10.10.5)
iMac (27-inch Mid 2010), OS X El Capitan (10.11.4)
