The finder looks normal, actually.

There's a resistor on the logic board, and whether it's clipped or not tells the computer how much RAM there is; it doesn't detect it by itself. So it could be that you have less RAM than you think.

Somewhere on here there's a great PDF file with opening instructions and a walkthrough of all the systems written by Tom Lee. But if nobody links to that before I get back on, later on when I have more time I'll get back on here and tell you what to do.

-Apostrophe