
MITAC INTERNATIONAL CORPORATION

IH 4125

Processor         80486SX/80486DX
Processor Speed   16/20/25/33MHz
Chip Set          ETEQ
Max. Onboard DRAM 32MB
Cache             None
BIOS              AMI
Dimensions        240mm x 220mm
I/O Options       None
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                   Location

  Reset switch                J1       Power LED & keylock         J4

  Turbo LED                   J2       Speaker                     J5

  Turbo switch                J3       External battery            JP1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal             JP2            Closed

      Battery type select external             JP2             Open

     Monitor type select color                JP4            Closed

      Monitor type select monochrome           JP4             Open

     Clock phase select dual                  JP7            Closed

      Clock phase select single                JP7           pins 1 & 2
                                                              closed

     Clock source select OSC1                 JP8            Closed

      Clock source select OSC2                 JP8           pins 1 & 2
                                                              closed

              DRAM 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

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

      16MB        (4) 4M x 9         NONE

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

                          CPU TYPE CONFIGURATION

       Type               JP11             JP12               JP13

      80486SX             Open             Open         pins 1 & 2 closed

      80486DX            Closed           Closed        pins 2 & 3 closed

