Okay, I also did some tracing, and I now know where the power/reset tact connected. I used some wire to short the spot to ground, and it turns the system on, will reset the system, and totally shut it off when it's held for a few seconds.
I'm still working on where the lid switch leads to. Once I have that part figured out (should be done tonight, for sure) then I'll be able to chop off that tiny lil section of motherboard.
good work Zeturi. make sure to test EVERY little thing you do. Oh and if you are serious about this slimming, I'd go and order 2 more motherboards right now. Nothings more discouraging than busting a motherboard and not being able to test a new hypothesis on a spare. Good luck
Yeah, I know what you mean by having a spare motherboard. I did figure out how to turn the system on/off with a couple of pins, and I did it five or six times and it all worked great. But when I was fiddling around with the disk switch stuff, my system shut off. I haven't been able to power it on since, and the red LED doesn't turn on like it normally did when I had the power plugged in. I'm going to give it a couple of days to sleep, if it doesn't turn on then, then I'll have to label it as fried.
Problem about having spares for PS2 slims is that there are different motherboard revisions. Like today, I went out and bought a Slim 77000, just to find out that it had the larger motherboard. And since I broke the warranty seal, it's unreturnable. I guess I just need to make certain from now on that they're 79000, like my old one.
I've made some pretty good discoveries about cooling, arrangement of parts etc., but I want to wait until I can test this all on a working system before I post stuff up.
Take this as a plea, if anyone has a 79000 motherboard, I'll take it off your hands!