The Mac is at my office, and I'm... not, so I'll check the ROMs when I get back on Monday, and I'll google the model number difference between 400k and 800k FDDs so I can quickly check that.

Somewhere in my piles I have a SCSI Zip100 drive and disk that I used to use as the HD for a Plus. If I can find that I'll try booting from it. I may also drop in 6MB of RAM, because why wouldn't I?

I'm getting to the point where I'm going to want more RAM for my SE/30, so I will soon have eight 1MB sticks to be used in this and another Plus that has only 2MB. I need to pop open my dead Q900 and see what kind of RAM is in it.