Sudden shutdown
It started after the 10.4.7 update. When I rebooted after the update, My G5 would just shut down right away, like someone pulled the power cord. iTunes was a startup item and caused this. And did so later when I would start iTunes myself.
I threw out caches, reset the PMU, unplugged all devices/cables, reset PRAM, ran Disk Utility and TechTool Pro, deleted iTunes and related files, re-installed iTunes. Not sure what did the trick but the shutdowns were gone.
But they came back. A few times after starting iTunes and also a few times when surfing the web. So more rounds of unplugging, resetting, etc. and it would be fine again.
Today it happened again after starting iTunes, and unplugging, resetting, etc. would not help. Same thing on a second hard drive with pretty much a clean install of OS X. So I can't use iTunes anymore...
This is from the sytem log:
Aug 19 21:47:23 localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -122
I've seen more posts about the same problem, also at www.xlr8yourmac.com, and the same problem still happening after repair. Not sure if bringing it in for repair would help. The problem might be gone all of a sudden, who knows when it comes back, and it seems that nobody knows what the problem is so that would make it impossible to repair.
Or did I miss something? And I wonder what all people with the same problem did. Just living with the occasional shutdown now and then? I saw a much older post by sAik0, someone with the same Mac who had the same problem when starting iTunes and later wrote that iTunes wasn't the problem but that Topic has been archived and replies are not allowed...
My guess is that it's a problem with sound, iTunes talking to hardware. Or maybe QuickTime? (Because it happened a few times when surfing the web and maybe Safari needed QuickTime on some sites?) I'd like to hear from people with the same problem. And any idea what a good way would be to contact Apple about this? It looks like it's just faulty and Apple should fix this...
G5 dual 2.3 Ghz Mac OS X (10.4.7)
I threw out caches, reset the PMU, unplugged all devices/cables, reset PRAM, ran Disk Utility and TechTool Pro, deleted iTunes and related files, re-installed iTunes. Not sure what did the trick but the shutdowns were gone.
But they came back. A few times after starting iTunes and also a few times when surfing the web. So more rounds of unplugging, resetting, etc. and it would be fine again.
Today it happened again after starting iTunes, and unplugging, resetting, etc. would not help. Same thing on a second hard drive with pretty much a clean install of OS X. So I can't use iTunes anymore...
This is from the sytem log:
Aug 19 21:47:23 localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -122
I've seen more posts about the same problem, also at www.xlr8yourmac.com, and the same problem still happening after repair. Not sure if bringing it in for repair would help. The problem might be gone all of a sudden, who knows when it comes back, and it seems that nobody knows what the problem is so that would make it impossible to repair.
Or did I miss something? And I wonder what all people with the same problem did. Just living with the occasional shutdown now and then? I saw a much older post by sAik0, someone with the same Mac who had the same problem when starting iTunes and later wrote that iTunes wasn't the problem but that Topic has been archived and replies are not allowed...
My guess is that it's a problem with sound, iTunes talking to hardware. Or maybe QuickTime? (Because it happened a few times when surfing the web and maybe Safari needed QuickTime on some sites?) I'd like to hear from people with the same problem. And any idea what a good way would be to contact Apple about this? It looks like it's just faulty and Apple should fix this...
G5 dual 2.3 Ghz Mac OS X (10.4.7)
