There is also the possibility to fix that 7.x bus error in software somehow. I did that on my Mystic but totally forgot what you had to do. Edit: now that was easy... http://colou…

That is true, but it is a 0 ohm, so it's just one solder bridge when you want to do the VGA mod.

You can remove resisters, but if at some point you want to do the vga mod you'll likely have to put them back...

I seem to remember just removing a resistor fixes this. I never did the video upgrade to my classic and it boots OS's before 8 just fine. I think this site details what I'm talkin…

Yes, but you will have to run system 8... a 575 board without the vga mod confuses system 7.5 and with show a bus error...