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I was wondering if there is a way to test the power supply on this particular model. It has two molex connectors, P1 has 6 pins and P2 has 10 pins. I would like to find out the pin out scheme on the 1000 watt power supply…I’ve search and search, but cannot find anything as to this. I replaced the PSU, but I cannot get anything to power on. Ram, and HD, are removed. I’ve reset the PMU also, all I hear is a couple of clicks (very minimal in noise) but only when I plug the power cord to the mac. There are no light on built-in diagnostic LEDs on the main logic board. Any help will be appreciated. Thank you.

Alex, best bet for that would be this site. Hope this helps, good luck.