On Jan 3, 2012, at 12:04 PM, faithie999 wrote: > I found a message in a badcap.net thread that suggested changing the > CMOS battery. Did so, and now a new set of symptoms. > Pilot light comes on, fan at normal (low) speed, but no startup chime > and no boot. Screen is black. Tried booting with install disk but > SuperDrive doesn't swallow the disk. Tried a couple different ram > sticks to no avail. > Does this still sound like a capacitor problem or should I head down a > different track? > > Diagnostic led's: > When I plug in the power cord led1 lights as expected. After powering > on led2 lights as expected. Led3 never lights. Manual suggests this > is a video problem but since it doesn't appear to be booting I'm not > ready to condemn the video yet.
All signs point to logic board issues with the thing. On G5 iMacs the most common logic board issue is bad caps. The system isn't even coming alive (no startup chime) Remove all the ram and see if you get the bad ram crash noise, but I'll bet you don't. At this point you'll want to consider the value of your time and parts to repair it. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs -- 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
