iMac Shuts Down or Restarts Itself
Posted 23 November 2007 - 10:07 AM
Anybody experience similar problems or have any suggestions?
Posted 23 November 2007 - 10:45 AM
Posted 23 November 2007 - 12:17 PM
Any ideas... anyone..???
Posted 07 May 2008 - 05:05 AM
Posted 15 November 2008 - 11:42 AM
Genius bar did an archive and install and it still did it. Then they replaced power supply 661-4433 and logic board 661-4437 and cable S1401ll/a.
It worked ok for 3 days then shut down again.
I had been putting it to sleep each night but now I am turning it off at night.
I was told the machine did some stuff at night but I have no clue what it does.
Almost 3 days since last unexpected shut down.
Posted 31 December 2008 - 05:59 PM
However I have discovered if I apply slight downward pressure to the left hand corner of the screen it will boot. It will also boot up if I squeeze the button corner a little as i press the button. But...once I let go it can be seconds, minutes or hours before it shuts off again on its own.
Posted 01 January 2009 - 06:56 AM
I tried the command/option O F and did not get that reaction. How come?
BTW I do not have the problem that was posted on this thread although I have a problem in that I have to hit the start button twice or hold it in about 4 to 5 seconds minimum to get it to start. Been like that for a very long time. Applecare said to bring it to a shop and I have been too lazy as this is not seeming to be affecting anything else.
Posted 01 January 2009 - 12:37 PM
I spent Thanksgiving day and following backing up, erasing, installing. I slowly put back my virtual machine VMware ad a couple of the PC programs. It shut down again but I had added the restart option after power outage and It did restart and I got a message from Microsoft saying the USB hub was a problem. It was v1 and so I bought a v2.
I did not have this problem when the Imac was at another location and I tried to remember what else was different. I did not have that hub at that location so I thought all was well but it happened again.
I guess I will just try documenting all I have running when it happens and hope there is a pattern.
I do have AVG running on the Virtual machine.
Posted 10 February 2009 - 07:48 AM
Posted 17 April 2009 - 12:05 PM
Posted 18 April 2009 - 10:14 AM
I am using the UPS so it is not electrical.
Posted 15 July 2009 - 03:24 PM
Maybe Apple should beging offering a 4 or 5 year extended warranty...or maybe simply say - "see you in three years", as you leave with your new purchase!!
PS: Interestingly, my original 'Bondi Blue' iMac I bought in 1998 is STILL working !! (not much use to me, but working none-the-less)
Posted 20 July 2009 - 08:15 PM
i've had this happen, although on my 1 year old dell vista machine. sorry, my mac pro is running great but i want to help. with me dell, the main reason for my dell rebooting by itself was a bad memory stick. went from 4 gb to 3gb, threw away the 1 bad stick, and everything runs great. since i switched last year anyway, that's just a email/browsing machine for the mrs.