magic 2 wont boot PSX backup?

[Kpyro]

I cant get PSX backups that work on moded psx to work in
my moded ps2.

Scph-39001 ps2
magic 2 v7
Z wire not attached
1uf cap on s wire (to stop DVD skip)

PS2,PS1,DVD originals work
PSX backups dont I dont have any ps2 backups to try.
DVD+RW movie (the mummy) works fine.

Any ideas?
Is there a chip that just works throw in a disk and it works
no swap, no reset three times,and no stand on your head?

And thanks charlie for the 1 uf cap mod.
Thanks
Ken