So, I have this GH-061-12 board in a brand new PS2 slimline. I had to scour the net to find a working diagram for it, and once I did I installed the XenoPS chip like I normally do in a console. However, I just get a black screen when I turn on the PS2. Take out the chip, everything is money. Put it back in, same deal. I have about 20 more of these XenoPS chips laying around, so I tried several and I checked and rechecked all my work. Everything is good to go, except the system won't boot for anything with the chip installed.
I'm assuming the XenoPS does not contain the cloned matrix 1.93 firmware, but probably 1.82 or 1.91 - does anybody know? If so, am I SOL with this chip or what?