identify mainboard by President

President [PF / 1491]
former Wang Labs

??	2A59GPFC-00	i430VX	Winbond 977
??	2A59CPFHC-00
P54SA (B)	2A5IAPFA-00	SiS 50x
P54SA (B)	2A5IAPFA-01	SiS 50x
P54SA	SIS 501-503-IAPFA-01	SiS 50x
P54SP4	SIS 501-503-PI-54SP4-00