I searched the board, read thru "Safest V4/V5 upgrade", didn't see this exact question answered, so...
I dropped in an AMD-K6-2+/450ACZ. Boots to sandisk fine.
Moved SW3 over to SW2 (1-4 left to right), set on-on-on-off.
Still boots fine, but I see no indication that anything's changed.
What is the quickest/easiest way, from DOS, to tell that your settings on SW2 have changed anything? I'd like to check things in stages as I go. Thanks.