identify mainboard by U-Board

U-Board / Uniboard [U0 / 1792]
out of business

?? 2A59CU0DC    
       
?? 2C4X2U02-00 UM82C49x  
?? 2C4X6U01-00 UM49xF  
KS-TG919 v3.1 01/17/96 2C403U0Z-00 SIS-471/B/D-B    
?? 2C403U01-0B   sold as EF9417 by EFAR
?? 2A4X5U03-00