Installed new Power Supply unit.

For the past few months I have had the Sleep/Wake, Start-up problems wih my 1.8Ghz 20" G5 iMac, no iSight, no ALS, that so many G5 iMac owners have been experiencing, until it would not start up at all. No visibly bad caps on the logicboard but at least 4 bad caps in the Power Supply. I cleaned all the dust out of everywhere & I have finally gotten a new Power Supply unit, & installed it today, also changed the CR2032 lithium battery. I am ready to start up and I wonder what procedures should I perform to make sure I have covered all the bases to be back to normal conditions. Do I need to reset the SMU, reset the PRAM, Repair Permissions, run Apple Hardware Test on the Install Disc, etc.?
As usual, all suggestions are greatly appreciated.
Thank you,
John

hi Ralph,
Well, i started up & everything seemed to work OK, put it to sleep for about 20 minutes & woke it with the mouse, which I haven't been able to do for quite a while. I ran Apple Hardware Test from the Install Disc & everything Passed, hooray. Then I opened Disk Utility , chose "Macintosh HD" & ran Verify Permissions. A long list of "Permissions differ on ..." came up, starting with a "User differs on...".
User differs on ./Developer/Examples/WebKit/DiskCacheInspector/DiskCacheInspector.xcode/project .pbxproj, should be, owner is
Permissions differ on./Library/Application Support/Macromedia/Shockwave 10/Shockwave 10 Preferences, should be , they are
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/Info.plist, should be , they are
Permissions differ on ./Library/Internet Plug-Ins/Flash Player.plugin/Contents/MacOS/Flash Player, should be , they are
Permissions differ on ./Library/Internet Plug-Ins/flashplayer.xpt, should be , they are
Permissions differ on ./Library/Preferences, should be , they are
Permissions differ on ./Library, should be , they are
Permissions differ on ./private/var/log/secure.log, should be , they are
What thet should be & what they are are a lot of r's, w's & x's. I didn't type here what it said they are or what they should be because I don't know if there might be a security risk or not. Probably concerned over nothing.
Anyway, should I Repair Permissions or are they supposed to differ.
Thanks again for your help.
John

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    I have unplugged everything except the power to the motherboard when testing it and still nothing. I have sure that the 4-pin connector that goes from the PSU to the mobbo is labeled P3 to match the label on the motherboard. I tried putting in the old power supply and everything works like a charm again.
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    Thanks,
    BD
    Edit: I just tested the new PSU on a different system and it works just fine.
    Message Edited by BSU Dude on 04-29-2009 08:38 AM

    Do you remember that post about creatind a resistor connector to bypass? I have a fan not detected eror with my new PSU on the DC5750.

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