FREE COMPUTER TECHNOLOGY, INC.

80486ISA (03-009X-00)

Device Type            Mainboard
Processor              80486SX/80487SX/80486DX
Processor Speed        25/33MHz
Chip Set               OPTI 486WB
Video Chip Set         None
Maximum Onboard Memory 32MB
Maximum Video Memory   None
Cache                  64/256KB
BIOS                   Unidentified
Dimensions             330mm x 218mm
I/O Options            None
NPU Options            4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            J11       Turbo LED                 JP11

  Power LED & keylock         J20       Reset switch               SW1

  Speaker                     J21       Turbo switch               SW2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Monitor type select color               JP2              Open

      Monitor type select monochrome          JP2             Closed

              SIMM CONFIGURATION

      Size          Bank 0          Bank 1

      1MB         (4) 256K x 9       None

      2MB         (4) 256K x 9   (4) 256K x 9

      4MB         (4) 1M x 9         None

      5MB         (4) 1M x 9     (4) 256K x 9

      8MB         (4) 1M x 9      (4) 1M x 9

      16MB        (4) 4M x 9         None

      20MB        (4) 1M x 9      (4) 4M x 9

      20MB        (4) 4M x 9      (4) 1M x 9

      32MB        (4) 4M x 9      (4) 4M x 9

            CACHE CONFIGURATION

     Size          Bank 0          TAG

     64KB        (8) 8K x 8    (1) 8K x 8

     256KB       (8) 32K x 8   (1) 32K x 8

  CACHE JUMPER CONFIGURATION

   Size      JP9       JP10

   64KB      Open      Open

  256KB     Closed    Closed

                            CPU TYPE SELECTION

       Type               JP3               JP4                JP5

      80486SX             Open              Open            Pins 2 & 3
                                                             closed

      80487SX          Pins 1 & 2          Closed           Pins 1 & 2
                         closed                              closed

      80486DX          Pins 2 & 3          Closed           Pins 1 & 2
                         closed                              closed