If the power supply were weak before the power failure, ie bulging capacitors, it would seem like the power failure caused it. Inversely, if the power surge that hit the system upon power restoration caused a cap to bulge, then that would also cause this, depending on the cap location and what rail it is on. If it is the kick start capacitor, you can hang it up until you replace it. That capacitor holds a small charge to "kick start" the power supply when you press the power button. All of these are an easy fix if you have the time and patience and are good with a soldering iron. I repair power supplies as well as motherboards like this all the time.
On May 13, 2010, at 5:46 PM, James Morgan wrote: > I have been using my MDD G4 (not that far removed from the quicksilver) > for months now with a startup button that sometimes flickers, dies and does > not start (a problem that began after I accidently disconnected the power > while it was running). But given a rest for a few hours it starts fine (after > a few tried, of course) and then continues to start so long as it is shut > down normally However, if disconnected from the power while running (yep. I > did it again) it falls back into the button light flicker and dies mode. But > then, given some rest and tried again, starts up and runs fine again. > > It seems to me if this were a power supply issue that the computer > would never start again? Also, I don't see why a power outage would kill a > computer power supply? > > > =================== > On May 13, 2010, at 11:23 AM, Bruce Johnson wrote: > >> >> On May 12, 2010, at 7:13 PM, ll wrote: >> >>> We lost power yesterday. My quicksilver has been on a really >>> good surge protector for two years. It wasn't enough this time >>> however. If I push the on button,a light shows,flickers and dies. The >>> machine never turns on. I am assuming my hardrive is fried. >> >> Nope. This is a power supply issue, and seems to be pretty common with >> Quicksilvers. A new replacement ps is about $230 or so, we replaced on in a >> professors system not too long ago. >> >> You could try to find another QS or later Mac and drop your hdd into it; >> more than likely your drive (and the rest of the system) is just fine, or >> look for a replacement PS on fleabay or such. >> >> >> >> -- >> 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 > > James K Morgan > > > > > -- > 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 -- 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
