Up until recently, I was happily using a B&W G3 (rev 1, 400mhz) which had been upgraded with a Melco G3/500 and a flashed Radeon 7000 PCI, all running under 10.4.11.
On a bit of a whim, I picked up a used Apple G4/350 CPU from ebay with the idea of installing it in the B&W and trying to overclock it to 400mhz. Just before Christmas, 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 -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
