CHICONY, INC.

CH-486S-16/20/25/33H, CH-486-25/33H

Processor         80486SX/80487SX/80486DX
Processor Speed   16/20/25/33MHz
Chip Set          OPTI
Max. Onboard DRAM 32MB
Cache             None
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       80487SX

[Image]

                                CONNECTIONS

  Purpose                   Location   Purpose                   Location

  Turbo LED                   CR1      Power LED & keylock         J20

  External battery            J4       Turbo switch                JP6

  Speaker                     J15      Reset switch                SW1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP3            Closed

      Monitor type select monochrome           JP3             Open

  »   CMOS memory normal operation             JP5           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP5           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

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

      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               JP1               JP2                JP4

      80486SX          pins 2 & 3           Open              Open
                         closed

      80487SX          pins 1 & 2          Closed           pins 1 & 2
                         closed                              closed

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