I knoooooow... I got totally screwed by having a lucky snag You're all starting to turn me to your way of thinking...I just hope all my cap rework does the job and they both give me a chime. And no, I haven't tried powering them up. Not gonna be impatient (he grumbles to himself under his breath)It sounds like such a nice Macintosh II, I'd keep it stock - provided it works well. If it was an old dodgy one not working, I'd throw that IIfx board in without question. A good proportion of Macintosh II were upgraded to IIfx machines so you're not committing any sins.