Stojke wrote:

The only jumper block on the PCB :lol: (Below the VGA microprocessor) http://i.imgur.com/33aImi9s.jpg […]
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The only jumper block on the PCB 🤣 (Below the VGA microprocessor)

I didn't test the card with JP set to 2-3 ("Never ever mess with a PCB jumper you don't understand, even if it's labeled "SEX AND FREE BEER")

It LOOKS like the jumper says "286/386/486"

What would change though? the ISA bus should not be any different, as you can't say it would be an overclocked bus on "X".
Would they bother optimizing the Vesa BIOS separately?