- BIOS ID String  40-0101-641291-00101111-060691-OPWBSX-F
        - BIOS ID String  X0-0100-001291-00101111-060692-OPTIAUTO-F
        - 8-30 pin SIMM slots  (1-32meg FPM DRAM)
        - 5-16bit ISA slots
        - 3-8bit XT slots
        - 64K/128K/256K SRAM Cache in 8-28pin sockets + 2 TAG RAM sockets
        - AMI 1992 Auto-Detect ROM Bios 486DX-OP-WBh-25/33/50-D3-ZZ
        - OPTi 82C495 / 82C392 chipset
        - Clock crystal OSC1 socketed near cpu
        - 239pin PGA CPU socket which supports these processors:
          INTEL 80487SX,80486SX,80486DX/DX2,ODP486SX
        - Supports speeds of 20/25/33/40/50/66 MHz
        - Manufactured by: TMC Research Corporation USA