I suppose that might make me fire up the se/30 in the garage.. I really need to bring all my macs inside the basement... I had a climate controlled storage area that I recently quit using and everything there is now in my half of the garage.. It's very cold out there, but at least out of the weather. But still can't be good for the few macs still out there. The SE/30 I have I THINK fired up, but it didn't have a hard drive or floppy drive in the case, and at the time I didn't have time to fully restore it. So I might have to take you up on a cap set yet.

Yes the 2 IIFX units I have plus the spare motherboard (All with various defects) at least have tantalum capacitors like you say. One day I'll get working machine. One of the units has busted sim holder too..

Thanks for the info and offer on the battery holder.