I also checked the on board battery which is still running at 3v
Several months ago.... came home and mini was powered off and would not turn back on.
I have replaced the unit but would like to try to revive the old one if possible.
I have read this article which didn't seem to help..
I have replaced the ram with its original dimms. Still no good.
I have also removed both the dvd and hard drive.
Would be happy if i could atleast get the white light and mac sound... but nothing.
Any other ideas ?