- also known as A486DX4/SIS III Mainboard
        - AMI BIOS ID string    40-0107-428003-00001111-072594-SIS471-H
        - 2-72 pin SIMM slots  (1-64meg FPM DRAM)
        - 4-30 pin SIMM slots
        - 3-32bit VESA Local Bus slots
        - 6-16bit ISA slots
        - 1-8bit XT slot
        - 32k-512k CACHE support in 8-28pin sockets + 1 TAG RAM
        - AMI 1993 Auto-Detect Flash BIOS.
        - Green PC Connector
        - SiS 85C471 chipset
        - Supports 3.45v/5volt CPU's
        - ZIF 237pin CPU socket 3 which supports these processors:
          INTEL 80486SX,80486DX/DX2/DX4
          CYRIX CX486DX(M7)
          AMD AM486DX/DX2/DX4
        - Supports speeds of 20/25/33/40/50/66/75/100 MHz.
        - Manufactured by: QDI