Mainstream chipset with enhanced DOS performance using cheaper DRAM memory. Probably just late revision of original P86C801 made by another manufacturer. Palcal's card: (129) Spea V7-Mirage rev.R11B01(129) Spea V7-Mirage rev.R11B01 (129) Spea V7-Mirage rev.R11B01(129) Spea V7-Mirage rev.R11B01