Anyway, Outrun2 has a terrible bug in the multi: wheel disabled after a 30minutes of play. This was never fixed as far as i recall, so the sun brightness problem is really a minor issue.🤢
You don't need now an external programmer (btw tl866ii plus work great). You just have the full b23 bios dump and the software writer. Read the thread "ttx3 video card and cpu upgrade".
The real problem with artax is that there's a lot of "top arcade" stupid guys that try to sell this system so i think all future upgrades still remain private.
Also success here from my externally hardware upgraded b16 to finally b23 via software tool. Thank you guys for sharing the dump, it's a big great feature to upgrade a much powerful gpu now!
Now i'm thinking: i have a retail pc motherboard that is totally same specs of ttx3 (ami bios and q67 chipset) and i have patched it with logo change dumped from the ttx3 bios so basically now i have a sort of "bootleg" ttx3 with also uefi support (😜). Flashing this retail motherboard was done...