Hello, I've been able to get the G4 working again. The issue recognizing GRUB does not seem to be memory-related, as I tried each stick one at a time and was never able to boot to GRUB. This shows that unless they're all somehow faulty in the same exact way that manages to not affect normal operation, memory is not the issue.
In other news, my G3 memory upgrade arrived yesterday, and the system was able to boot perfectly into the latest Debian and worked well. I will be using this machine to attempt to port Arch Linux to PowerPC. Does anybody have any more ideas to diagnose my G4's complete inability to recognize or boot GRUB? Thanks, -- Ben Westover
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