Hello MJoeYoung, Thank you for the help and link for prospective parts. Here is what I did recently: replaced the PRAM, swapped the CPUs (A to B, and vs. a vs.) made sure the CPUs were well-seated. Of course, having to take apart the G5 (not as bad a project as I thought), that gave me a chance to reseat everything. I also inspected the board - no noticeably bad elements, though I suspect the ROM chip may have gotten fried (I have no actual evidence to this effect, just a gut feeling based on the way the unit boots up. Thank you for the link. The motherboard is less in $$ than anticipated, so, I need to decide to invest a little in the hopes that it offers the cure, or simply give up and part out the unit. Thank you again for all your contributions on this project. Dana
On Sep 25, 11:40 am, mjoeyoung <[email protected]> wrote: > I want to confirm that you switched CPUs (A in B slot and B in A slot) and > that they were both seated properly when you turned the computer on. If > CPU A is bad and CPU B is good putting CPU B in the A spot and CPU A in the > B spot should allow the computer to boot. Both CPUs (even if one is bad) > need to be installed for the computer to work. When I was fixing my > problem I had both issues (unseated and only one installed). > > One of the earlier G5s was able to run with only one CPU installed in a 2 > CPU system so you could try that, but I think it was an earlier model to > yours. > > Have you replaced the battery? That can be the cause of various issues. > > I do not know of any motherboard checks except for visual inspection of bad > capacitors. If the computer is making sounds and the fans eventually go > into wind tunnel mode I would think the power supply is probably okay. The > chance that BOTH processors went bad at the same time seems slim. So, I > would guess logic board. > > I fixed mine on a whim just to see if it was possible before getting rid of > it. These computers are so cheap now that it is almost not worth the > time/effort to repair them. This is the > store<http://www.electronicscafe.com/> I > purchased my parts from. They also sell on ebay. They have a motherboard > that might work for about $17 and a pair of cpus for $25. -- 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
