pal ps2 board

I got a ps2 from a friend , saying i should check it .. i did and its working . the problem is , its a pal board and we use ntsc where i am at (in the caribbean).
what can be done to make it work with ntsc fully ...
I know mod chip can work but don't want to take another chance and mod this one as the first and last one i had have modchips which put them to black screen .. first ps2 (matrix infinity green dot) and second ps2 (modo 4)
I see on the mainboard it GH-023 and the model from the case it came was 50003 .. which type of board is this one ???

Any help would be great ..