Trouble with PS2 DUo2SE chip

[20cobra01]

Depends on what you are calling red screen. The Original disk will cause sort of a red screen stating that only original ps2 or ps1 formats games can be played. If I disable the chip by holding down the reset until the blue clouds appear then it (the original will play fine). I will attempt to give the connections another look this morning. I am just not completely sure how the PS2 should operate when the chip is working. Should I expect the original games to play without having to disable the chip?

Thanks for the responses