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iMac G5 shut down/restart problems
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Junior Member
Join Date: Aug 2005
Location: UK
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Hi, I did a search but couldn't find anything relevant, the machine wont shut down, the screen clears apart from the wallpaper and just freezes. It wont restart either, the same happens. When I start it back up after turning off by holding the power button it takes a long time to boot, approx 2 minutes. Ive used the disk utility and verified/repaired etc, ive also checked the login items and there are none selected.
Any ideas guys?
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17" iMac G5 1.8 GHz 2GB
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Junior Member
Join Date: Aug 2005
Location: UK
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I cant update software either, it downloads fine but soon as i click the restart it starts to install and then freezes 
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17" iMac G5 1.8 GHz 2GB
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Junior Member
Join Date: Aug 2005
Location: UK
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Any recommendations as to what I can do to solve this problem without a software re-install?
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17" iMac G5 1.8 GHz 2GB
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Clinically Insane
Join Date: Jun 2001
Location: planning a comeback !
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You said you did verify/repair, but WHAT ? The disk ?
You should try repairing permissions. Wrong permissions could cause the things you are encountering.
-t
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Moderator 
Join Date: Apr 2005
Location: Cambridge, UK
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Does the spinner stop when it gets stuck shutting down/restarting. If you've got a dark background you may not see it.
How long have you left it trying to shut down for?
Download and run SMART Utility and see what it says about your hard drive.
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MacBook Pro C2D 2.4Ghz/4GB RAM/500GB HDD/10.6.1
Macbook C2D 2Ghz/1.5GB RAM/250GB HDD/10.5.6
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Junior Member
Join Date: Aug 2005
Location: UK
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I verified/repaired permissions and the disc
I left it for a few hours before and it was still on the same screen when I came back to it.
This is what comes up from running the smart utility

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17" iMac G5 1.8 GHz 2GB
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Clinically Insane
Join Date: Jun 2001
Location: planning a comeback !
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Start/Stop Count failing is not a critical condition.
See here: S.M.A.R.T. - Wikipedia, the free encyclopedia
However, it is possible that the OS itself tries to access this count, and can't, and therefore, it gets stuck.
If that's the case here, you'd probably have to buy a new HD.
-t
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Junior Member
Join Date: Aug 2005
Location: UK
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Thanks 
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17" iMac G5 1.8 GHz 2GB
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Junior Member
Join Date: Aug 2005
Location: UK
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Ive now got a WD 160GB HDD, I only have a ATA firewire case so I copied the original disk over to a spare ATA drive in the case, then booted from the case drive with the new WD drive in the machine, copied from the case drive to the new drive with no problems using disk utility but now I cant boot from the new drive, it came with no jumper so I fitted a jumper to pins 1 and 2 which is the other factory standard settings according to the WD website. Im currently running off the ATA drive in the case but I cant select the new drive in the machine with system preferences. I still cant shut the machine down either, back to the original problem 
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17" iMac G5 1.8 GHz 2GB
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Junior Member
Join Date: Aug 2005
Location: UK
Status:
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Got it to boot from the new drive now, could it have been something to do with OS9 drivers? I connected the machine via firewire to my powerbook and erased the drive then copied over again from the drive in the case, I also binned the jumper.
After all this I still have the same problem of no shutdown or restart, ive been through the verify/repair procedure and this is what smart utility is now saying
Any ideas as to what I should do next?
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17" iMac G5 1.8 GHz 2GB
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Junior Member
Join Date: Aug 2005
Location: UK
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Well it was obviously a software problem, as I downloaded the latest update this afternoon and it restarted correctly after installing, shut down is also back to normal.
Glad I didnt pay for the new HDD 
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17" iMac G5 1.8 GHz 2GB
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Clinically Insane
Join Date: Jun 2001
Location: planning a comeback !
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That's interesting.
So the SMART utility doesn't show any signs of problems any more ?
-t
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Junior Member
Join Date: Aug 2005
Location: UK
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Smart utility is the same as above, airflow, but im sure I read something about temperature reading problems when using western digital drives. Machine seems to be fine
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17" iMac G5 1.8 GHz 2GB
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Clinically Insane
Join Date: Jun 2001
Location: planning a comeback !
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Originally Posted by DanThe
Smart utility is the same as above, airflow, but im sure I read something about temperature reading problems when using western digital drives. Machine seems to be fine
So, it seems the Software Update corrected some problem when reading the SMART status upon shutdown.
-t
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Junior Member
Join Date: Aug 2005
Location: UK
Status:
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If only! I seriously doubt smart utility has anything to do with the correction, the status hasnt changed and ive done 3 or 4 updates since changing the HDD
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17" iMac G5 1.8 GHz 2GB
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