Currently Being ModeratedJun 10, 2012 11:21 AM (in response to levelheaded)
The question mark means the the startup manager could not find a valid OS.
Could be a bad disk controller. Jumpers not set correctly. ETC.
I'd try an external firewire harddrive. PPC needs firewire to boot an exernal drive.
I'd try hardware diagnostics.
I assume it will run the boot dvd OK.
Currently Being ModeratedJun 10, 2012 2:06 PM (in response to rccharles)
Thanks for replying Robert,
The OSX disk is not booting from the built in superdrive,I can hear the drive working and the disk spinning but then it just ejects the disk.However,I have got an external firewire drive which I can try tho I use it for timeline backups.Ok Robert thanks for your help, I will try the external drive and go from there
Currently Being ModeratedJun 11, 2012 10:05 AM (in response to levelheaded)
I think if you do an archive & install on the external drive, you will perserver the data on the drive.
You need to be able to boot from a dvd in order to install software on the external drive.
I'd say that if you cannot boot from the hd and from a dvd that the machine has more basic problem with the logic board. Look at capacitor & see if they are distorted. See Internet !?!
Sometimes if volumes don't appear in Startup Manager (what you get when you hold down the Option key at startup), you need to reset the Mac's PRAM, NVRAM, and Open Firmware. Shut down the Mac, then power it up, and before the screen lights up, quickly hold down the Command, Option, P, and R keys, until the Mac has chimed twice more after the powerup chime. Then, before the screen lights up, hold down Command-Option-O-F until the Open Firmware screen appears. Then enter these lines, pressing Return after each one:
"The reset-all command should restart your Mac. If so, you have successfully reset the Open Firmware settings."
How to eject a cd from the internal cd drive:
List of devices:
List of variables:
( nvram is the equivalent Mac OS X terminal command. )
Resetting your Mac's PRAM and NVRAM
reset the PMU
Currently Being ModeratedJun 17, 2012 1:52 AM (in response to rccharles)
ok I followed your reset instructions,and it hard to explain what happening ,but the computer does find the hard drive sometimes,maybe after 10-15 goes at starting it up and sometimes when i keep putting the system disk in the drive .it always spits out the disk then it will suddenly startup.What i have noticed tho is after reading stuff about these logic boards the capacitors on the boards do leak,and on mine there must be 5 or 6 thet have been or are leaking from the top of the capacitor.I have not checked the ones on the power unit yet,so i suspect that it could be the same.I did forget to mention before that this model was one of those that had faulty psu's or logic boards and i did take it in and they repaired it at their expense,but that was 3 ir 4 years ago now ..So would you think that the leaking capacitors could be the main problem with my G5?
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