(I waited to post this until after I got back from vacation and could do some troubleshooting.)
Just before leaving for CA, I received the G4, installed it in the B&W, and appear to have killed something on the motherboard...
Before receiving the G4, I had installed the XLR8 version of the firmware block remover. The system continued to boot with the 500mhz G3, so I assumed everything was working correctly.
After installing the G4 (with the original 400mhz jumper block in place), I pressed the power button and received the normal chime. After waiting more than the usual, though, I noticed that the screen never turned on. The system powered off as soon as I touched the power button, leaving me to believe that it had hung very early in the boot process.
I replaced the original G3, only to have the same thing happen.
Since then, I have tried a number of steps, including:
So far, there has been no difference except for the first boot after the motherboard reset. On this attempt, I received 3 beeps (no usable RAM banks) after a very long wait. I'm dubious, though, that the RAM has failed as it worked fine before.
So far, I've found nothing useful on the web except a few instances of similar behaviour following a CPU and/or video upgrade on a B&W. None have offered a solution, though, other than replacing the motherboard.
At this point, I'm at a bit of a loss about what to do. My two choices seem to be either to try and grab a cheap releacement motherboard (preferably a rev2 to replace the current r1) or fall back to my old beige using either the G4 or the G3 500.
All advice appreciated...
John
Just before leaving for CA, I received the G4, installed it in the B&W, and appear to have killed something on the motherboard...
Before receiving the G4, I had installed the XLR8 version of the firmware block remover. The system continued to boot with the 500mhz G3, so I assumed everything was working correctly.
After installing the G4 (with the original 400mhz jumper block in place), I pressed the power button and received the normal chime. After waiting more than the usual, though, I noticed that the screen never turned on. The system powered off as soon as I touched the power button, leaving me to believe that it had hung very early in the boot process.
I replaced the original G3, only to have the same thing happen.
Since then, I have tried a number of steps, including:
- Booting with no PCI cards and only a single DIMM
Numerous CUDA resets
Apple's G4 PCI "Motherboard reset" procedure
So far, there has been no difference except for the first boot after the motherboard reset. On this attempt, I received 3 beeps (no usable RAM banks) after a very long wait. I'm dubious, though, that the RAM has failed as it worked fine before.
So far, I've found nothing useful on the web except a few instances of similar behaviour following a CPU and/or video upgrade on a B&W. None have offered a solution, though, other than replacing the motherboard.
At this point, I'm at a bit of a loss about what to do. My two choices seem to be either to try and grab a cheap releacement motherboard (preferably a rev2 to replace the current r1) or fall back to my old beige using either the G4 or the G3 500.
All advice appreciated...
John