On Thursday, May 26, 2016 at 8:33:47 PM UTC-7, Kris Tilford wrote:
> I assume you’re saying “I think I shorted out the power supply & VRM” but > did you confirm either the power supply or VRM was bad? > > Well, I was following the Troubleshooting section of the service manual, but misunderstood the diagram. I thought there was no trickle, but was mistaking socket position for pin position. > > The ONLY way to reset the beige back to original PRAM/NVRAM settings is to > remove the PRAM battery, and then also removed the power supply cables to > the motherboard, pull the VRM, THEN press the CUDA reset button. If it > still doesn’t work, let it sit 15 minutes with no PRAM battery or cables to > the motherboard, press the CUDA again and reassemble. > > I know this sounds kooky, like overkill, but I have a lot of experience > with Beige G3’s and I’ve had many with crazy boot issues that “made no > sense” which were all solved by disconnecting all the power from the > motherboard and reseting with the CUDA reset button > Thanks for that. I had disconnected AC and battery along with the CUDA reset, but not the VRM. But after that full process, it still boots up as soon as there is AC to the power supply. Even with the original VRM back in, and whether the power button is connected or not. All the hardware is back to the same as last time it booted normally, except for battery and ps. Next I'll try a different keyboard. -- -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list --- You received this message because you are subscribed to the Google Groups "G-Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to g3-5-list+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
