Intel NV430VX, OEM-only LPX form-factor board called PB680/682/683/5 depending on cache, VGA, VRM and whatever the person scanning in a new BOM at PB was thinking. PB nicknames include Orlando, Orlando 2D (S3 Trio) or Orlando 3D (S3 Virge). Cache present, Virge and VRM would be PB683 or 685, Orlando 3D, for whatever relevance that has as all other stuff including BIOS is identical between all these versions.
For basic info see here:
http://uktsupport.co.uk/pb/mb/683.htm
https://theretroweb.com/motherboards/s/intel- … -orlando,-tampa
Of all things, there's an MRBIOS for it (see second link)