PSX Modchip Installation Semi-failed... help requested.

[Leftfield_Ibiza_2000]

I have installed MANY chips on both PS1 & PS2's and one time when I was not able to get hold of my standard 4-wire chips I got some 'Stealth' chips. I had MANY problems with these chips and had to replace ALL installs with the 4-wire instead. The problem was the PS was not booting certain media where-as the 4-wire HEX was booting everything flawlessly!!

LaterZ
Leftfield_Ibiza-2000

P.S) Patching protected PS1 titles is just so easy a 'Stealth' chip is not really needed?!