Originally Posted by BlackenedTush
.... Looks like the Rich Chomiczewski has an eATX version, which matches the EEB form factor in size; but not mounting screw pattern. Actually, it will match for all but 2 holes. You could drill and tap your own, ask them to, or grind off the male screw portion of the 2 brass standoffs so they attach to the mobo but not the mobo tray. ...
I've already accounted for motherboards with "odd-ball" standoff locations by using threaded spacers
, which when only bolted to the motherboard, still supports it.