I use my pismo extensively. It started shutting off randomly, and I narrowed it down to the logic board by swapping parts with another Pismo.

I ordered a new logic board on eBay and it is definitely brand new, never used. The problem is that on the bottom, on my original board, there is a small heat sink on the ATI Rage Mobility 128 GPU, and on the new one there is NOT.

I assume that I am supposed to somehow peel the heat sink off of the old logic board, buy some expensive thermal adhesive, and glue it to the new one.......... AHHHHHH I wanted to have my Pismo back TODAY!

So I got to thinking, which may be a dangerous thing. The heat sink is not very big, and OS X doesn't particularly utilize this chip. No graphics acceleration takes place I've heard. I'm sure it does do some stuff, but I doubt it works particularly hard.

So who thinks it would be possible to run this WITHOUT the little heat sink? The adhesive costs more than another new logic board.