just plugged it in at home and it fired straight up,fans working and lot.You didn't answer the question, what happens now when you plug it in? Does it turn on and give RRoD, nothing at all, fans kick in but nothing on screen, etc, etc??
First thing I would do is check and double check for shorts around the RGH & NAND-x solder points.
so it must of been the PSU i took with me cos it wasnt the one i usualy use.
so im gonna solder the wires back on na.
i knew sumat want right cos it red ringd mine and mi friends,and his is retail,but 5 mins later i tried it on mi mates and it worked fine.
and the secondry error was 0001.