Question about Apple iMac G5 Desktop
Imac has no operating system. failed trying to install mac os x 10.5. any suggestions?
Hard drive may be bad or installer disk has scratches. Replace hard drive and disk and try again.
Posted on Oct 17, 2013
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Posted on Jan 02, 2017
SOURCE: Distorted video on G5 iMac
I will try to give you a troubleshooting if you haven't done so.
first you could try is a PRAM reset, that might help to reset the paths of the logic board with internal components.
If that does not work try to reset SMC/PMU (power Management Unit) to see if that helps.
http://support.apple.com/kb/HT1894 (article with PMU instructions)
If that does not work and you want to know the issue, try to boot in verbose mode:
http://support.apple.com/kb/HT1492 ( this is the article in apple tech support that explains how to do so.)
When you do that,(in case you can see the log) it will tell you what the machine does while booting.
Try connecting to another screen too to see if it is the screen.
Let me know if this helped, if not I can try to give you a workaround.
Posted on Nov 05, 2008
You will need to change your administrator's password you can do this by putting in the system disk in the disk drive. Boot up using the c key. Once booted go up to the file menu and go to the reset password menu and reset your password. Hope this helps
Posted on Oct 15, 2009
Reastart the iMac and at the same time hold down the mouse left click button. If that does not work.
Note: The Command key has the Apple and () icons on it.
Posted on Dec 11, 2009
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The flashing question mark indicates that there is a problem with the operating system or hard drive. Try to boot from the Mac OS X install disc by holding down "C" on the keyboard at startup.
If the computer boots normally from the Mac OS X install disc. Go to the Disk Utility from the disc. try to Repair Permissions on the hard drive. If after a while it seemed to work then is it time to reinstall the operating system. If it fails to repair permissions and gives you a bunch of red errors its time to replace the hard drive.
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