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Q: G5 Freezes on Boot

My G5 (A1047, mid-2003, 10.5) is having booting issues - when I try to boot normally it freezes on the grey boot screen.  The fans go crazy, and the machine sounds like a freight train.  When I attempt to boot into safe mode, I can get into the login screen, but it freezes when I try to input text to the password field (fans go crazy at this point).  I tried repairing the disk in single-user using fsck, to no avail.

 

I have been able to boot from the recovery disk (oddly, the fans behave normally when I do).  I attempted repairing permissions with disk utility, but it the system just hangs (I let it sit for ~1hr, so I promise I wasn't being impatient), and I'm forced to restart.  I thought it might be an issue with a corrupt file system or OSX install, so I tried reinstalling OSX, but I got kernal panics during every attempt.

 

Any ideas what the issue might be? My main suspects are HDD or video card, however I have no extras of either, so I can't test my theory easily.  I've reset the PRAM and PMU, so I don't believe it's those either.

Posted on Apr 26, 2016 6:05 AM

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