I have a compaq presario 7470 in my possession. It used to work, but not for some reason it refuses to. I just bought a power supply for it and it still doesnt work. I figured out that if u remove the J3 pin from pins 2 and 3 after pressing the power button it will turn on. The compaq screen comes up and it says '102-System Board Failure.' This seems bad...what should i do? is it a fried motherboard? if the board was fried would it even turn on?? Thanks!