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Dual G4 (1ghz) PowerMac startup troubles
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Grizzled Veteran
Join Date: May 2005
Location: Toronto, ON
Status:
Offline
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I was trying to fix a friend's newly acquired used PowerMac, and for some reason, now the machine doesn't respond to much...
The problem started b/c they wanted to use OS 9.2.2 to run an old version of Quark they had. Despite my telling and showing them that Quark worked fine in Classic Mode in OS X (they have 10.1) they insisted on using 9.2.2.
That's when the trouble started, I set the startup disc to the OS 9 partition, and restarted. Since then, the computer has not started up. During the startup, the progress bar gets about 1/2 inch across, and then the entire system freezes.
When I boot off of CD, the CDs (os 9 install, os x install, and restore cds) load for at most 1 minute, and then everything freezes.
I've reset the pram, but that didn't help. I tried the hard drive in another iMac, and it starts up fine, I even did a format of the hard drive. When I put the drive back in the broken Mac, no luck, I still get the same troubles.
My next attempt was I pulled out the CMOS battery, left it out for 5 minutes, and put it back in. I also took out the extra cards (wireless card, and NIC). I started up, and now it doesn't even find the startup disc. I tried different IDE cables, no luck. Tried a different hard drive (new one), and no luck.
ETA: I can't boot up off the Apple Hardware Test CD, just like the OS/Restore CDs, it tries to startup for a minute and freezes. Also, if I try to do FW Target Disk mode from the PowerMac -> iBook, the PowerMac will sit there for half a minute, and then completely power off. I know the cable is fine, b/c I immediately tried it on a G5 Tower, and there were no problems using Target Disk mode from the G5 -> iBook.
Any ideas on how I can revive this machine?
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MacBook Pro | 2.16 ghz core2duo | 2gb ram | superdrive | airport extreme
iBook G4 | 1.2ghz | 768mb ram | combodrive | airport extreme
iPhone 3GS | 32 GB | Jailbreak, or no Jailbreak
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Professional Poster
Join Date: Jan 2003
Location: Teaneck, NJ
Status:
Offline
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Seems like you have done most of what I would have thought of. Have you tried reseating the RAM? I don't know if you were upgrading it or not, but it is worth a shot.
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Mac Enthusiast
Join Date: Nov 2005
Location: New York City
Status:
Offline
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The fact that you can't boot off of CDs makes me believe that you have a hardware issue. Installing OS 9.x.x can't prevent it from booting off of CDs.
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Grizzled Veteran
Join Date: May 2005
Location: Toronto, ON
Status:
Offline
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SSharon/chefpastry:
I did a bit more troubleshooting, at this point, I have actually swapped out every replaceable piece of hardware from a working G4 Power PC. This includes Hard drive, cables, CDROM, RAM, even the video card.
With the RAM, I have reseated, switched slots, even changed RAM in different slots than originally installed.
At this point, no luck.  I have no clue which piece of hardware it is, and all that hasn't been replaced are the motherboard, power supply (figure I dont need to, it is powering up), and the processor(s).
Thanks for your replies folks, please keep them coming...
at this point, I'm waiting til first thing in the morning so I can schedule an appointment at the Genius Bar at a "local" Genius Bar.
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MacBook Pro | 2.16 ghz core2duo | 2gb ram | superdrive | airport extreme
iBook G4 | 1.2ghz | 768mb ram | combodrive | airport extreme
iPhone 3GS | 32 GB | Jailbreak, or no Jailbreak
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