from the ultimarc siteSelecting a resolution for each game.
TheArcadeVGA card has the following built-in resolutions:
H V Vertical Refresh
240 240 60Hz
256 240 60Hz
256 256
256 264
288 240 60Hz
296 240 60Hz
304 240 60Hz
320 200 60Hz (321 X 200 in Windows)
320 240 60Hz (321 X 240 in Windows)
320 256
336 240 60Hz
352 256 Vert on Horiz Mon
352 264 Vert on Horiz Mon
352 288 Vert on Horiz Mon
368 240 60Hz
392 240 60Hz
384 288
400 256 53Hz, Mortal Kombat etc (401 X 256 in Windows)
448 240 60Hz
512 240 60Hz
512 288
512 448 Vert on Horiz Mon
512 512
632 264
640 240 60Hz
640 400
640 480 60Hz
800 600
These are in addition to all the normal VGA text/graphics modes.
NOTES:
Three of the resolutions are one pixel wider in Windows, as shown. This was necessary because these are native Direct-X double-scanned modes and we don't want double scanning so we need to use a slightly different value to prevent Windows from invoking double-scan. In fact only the Windows "name" of the resolution is different, they actually scan the correct number of pixels, 300 or 400.
The resolutions which show no vertical rate in the table have an arbitrary rate which is the result of scanning the required number of lines at 15Khz. They are mostly around 50Hz. Arcade monitor timings prevent these resolutions from being displayed at 60Hz.
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Rampy