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Hi, I'm semi new to Mac, my ex g/f had one and I've wanted one since. I found a powermac G4 dual 1.42ghz mdd for $45 and said what the heck. The guy who sold it said it worked a week ago and all of a sudden wouldn't power up. Light comes on then fades when I take my finger off. I've read numerous posts about this issue and I've replaced the pram battery and hit the reset switch (held in for 5 seconds). To no avail, so then I found the diagram of how to test the power supply (http://docs.info.apple.com/article.html?artnum=95064). Well, I got my volt meter out and did exactly as the diagram said. And on the # 11 and 22 pin I got an alternating reading between 26 and 27 volts. It says that if it doesn't show a reading of +28v to replace the psu. Now my question is, is that an exact reading of +28v or give or take some? If it is exact, does it sound like I for sure have a power supply issue?
By the way, I've looked the logic board and processors over and I have not seen any flash burns or anything of that nature. I opened up the power supply and also did not see anything out of the ordinary, other than all the white (I assume themal paste) just strewn randomly on the psu. Almost looks like someone went nuts with a caulk gun. The fuse was also in good condition.
Any help would be greatly appreciated as I am excited in getting my first Mac up and running, even though it is an older one. Thanks again.
Brandon
By the way, I've looked the logic board and processors over and I have not seen any flash burns or anything of that nature. I opened up the power supply and also did not see anything out of the ordinary, other than all the white (I assume themal paste) just strewn randomly on the psu. Almost looks like someone went nuts with a caulk gun. The fuse was also in good condition.
Any help would be greatly appreciated as I am excited in getting my first Mac up and running, even though it is an older one. Thanks again.
Brandon