On Sat, Jan 2, 2010 at 10:21 AM, John Ruschmeyer <[email protected]> wrote:
> 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. > > ________________________________________________________________________________________ Did you reset the CUDA? On earlier macs this controls the hardware expectations on startup. Check this link; http://support.apple.com/kb/HT1939 -- Adrian D'Alessio aka; Fluxstringer [email protected] http://www.facebook.com/FluxStringer http://www.linkedin.com /in/fluxstreamcommunications http://flux-influx.blogspot.com/ http://fluxdreams.designbinder.com/ http://twitter.com/FluxStringer http://mog.com/FluxMuse -- 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
