Hey TriMesh,

Thanks for answer and clarify.

Based on this diagram, where's best place to put modchip?

Hello all, I have PSX 5502 with OldCrow modchip. My question is: Does 4-pin install modchips in PU-18 could affect reading discs? If yes, then switching to let's say Mayumi with stealth would "fix" this? Also, I have a PSone with PM-41(2) board. I've tried to install a modchip but somethin...