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5k iMac stops responding?

HaruAoki

HaruAoki

macrumors member
Original poster
Oct 14, 2014
87
4
Australia
Hello, I have a 5k iMac and for the best couple of days now randomly my iMac will frezze / stop responding I wil no longer be able to move the mouse and use any keys, the computer will continue to do this un still restarted.

Does anyone know anything about this issue / away to fix it?

thank you for your time and I hope you have a great day.
 
Type "Console" in spotlight.

You'll notice some of the reports are for "user diagnostic reports" and some are for "system diagnostic reports".

If you look in those areas by clicking on the little area areas where you suffered a crash will have crash as a suffix.

For example under "User Diagnostic Reports" I have one like this:
Finder_2015-08-31-225417_AfterImages.crash

(AfterImages is what I've named my Mac)

The window on the right includes the information on what caused the crash.
 
Hello, when looking at the "Console" I did not see any. Tho the problem today has changed a bit, it was gone for about two days, just now tho it has happened twice but a bit different. The computer stop responding tho I could move the mouse but only right-clicked on stuff and can't move or open new apps. It was also in shorter bursts and did not have to restart.

As I was writing this it happens again, tho when it happened when I was writing moving the mouse would highlight the text as well as able to right click things.

I think this happened around the same time I install a app could a app maybe cause something like this to happen?
 
A full reinstall may be premature. The process of locating the cause(s) of the issue can be complex, but it could be as simple as isolating a bad startup item in your User account. Diagnostics is part art and part science, but it's rarely appropriate to jump into major surgery (full erase/reinstall) prior to doing some diagnostic tests. (How different would the fable of Androcles and the Lion have been if Androcles had amputated the lion's paw, rather than remove the offending thorn?)

First, start up your system in Safe Boot. https://support.apple.com/HT201262 If the issue continues, create a new Administrative User account (Test User) https://support.apple.com/HT204443 to see if the issue persists in that new, "clean" user account. If either of those eliminates the problem, then a reinstall of your system likely won't be necessary.

Also, run Disk Utility > Verify Disk. https://support.apple.com/kb/PH20570 If no problems are found, a complete erase/reinstall of the hard drive is not likely to be the answer, either. If problems are found, you may only need to run Repair Disk.
 
I just tried it in Safe Boot for a bit, is it men't to be laggy in this mode. Opening Lunch Pad and some app's were laggy in this mode. Is this normal.

Also do I just use the computer normaly and wait to see if the issue ever happens while in safe mode?
 
/i have experienced this issue to a couple of times in the past week. You loose the ability to click on any other app. You can sort of select things by doing a right click on them. The mouse works to only to move and right click. The keyboard for me didn't let me type anything so there is no means to get to the console.
The only option was to force power off and start the iMac again.
 
I was talking to Apple online support, and they were thinking it could be a malware got me at doing a scan with "Malwarebytes Anti-Malware" and came up with nothing.

Tho I did find out what was the issue the mouse was the problem it was dying which made it lose connection from the computer to give it a frozen like effect so nothing is wrong with the computer (that I know of that is) and the issue was just a dying mouse.

Got a new one now and no issue!
 
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