I think I have a working 867ghz board 12" PB board. There was something on it -- it think it actually was the video cable that I broke and that cable ONLY works on the 867ghz boad. I opened up the machine to fix the cd drive and ended up breaking that cable.
Yours for 20 bucks if you want it. You would need to use your video/display cable on it to work. I also have a 512mb ram chip on that board.
Nah it's alright. If I really do feel like it though (a logic board replacement is the last thing I want to do) I'll contact you.