Generale wrote:
But the thing that gets me is that one of them looks like an 8-bit isa on a full length XT/PC card with another bit of edge connector way down the other end. That's the one covered in 256k simms.
I know it's a long shot. But I can always hope.
Sounds a lot like an ancient Vesa Local Bus or VLB video card. It's a PC thing. Looks like an ISA slot with a brown PCI slot behind it on the motherboard, except it isn't a PCI slot.