On Fri, May 21, 2010 at 2:32 PM, Mac User #330250 <[email protected]> wrote: > A friend of mine has a good source for capacitors and will help me with this. > I will start with the PSU and hope that the logicboard is not affected.
Be aware that removing, testing, and remounting capacitors from a printed circuit board is delicate and tedious task. On a more positive note, many multimeters (even the cheap ones that I own :-) now include the capability to test capacitors. I've never used it myself so I don't know anything about it other than that it is there. But if you pull a capacitor from the board you should be able to test it rather than just guess as to whether it is damaged or not. It still strikes me as a LOT of work. I'd definitely file it under "last resort". > But it's good to know that there are “normal” and > “switching” PSUs. Actually, FWIW my understanding it that all desktop computers use switching PSUs. They are much more efficient as well as lighter and most importantly I expect they are now cheaper to manufacture. If you're curious there's always http://en.wikipedia.org/wiki/Switched-mode_power_supply (or Google, of course). -irrational john -- 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
