CHICONY, INC.

CH-486-33A

Processor         80486SX/80487SX/80486DX
Processor Speed   20/25/33MHz
Chip Set          Chicony
Max. Onboard DRAM 32MB
Cache             64/256KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       None
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  External battery            J10       Turbo LED                 JP12

  Power LED & keylock         J23       Reset switch               SW1

  Speaker                     J24       Turbo switch               SW2

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Monitor type select color                JP1            Closed

      Monitor type select monochrome           JP1             Open

  »   CMOS memory normal operation             JP2           pins 2 & 3
                                                              closed

      CMOS memory clear                        JP2           pins 1 & 2
                                                              closed

  »   Factory configured - do not alter        JP4           pins 2 & 3
                                                              closed

  »   Factory configured - do not alter       JP10             Open

              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

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

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

                    CACHE CONFIGURATION

     Size          Bank 0       U33 (TAG)      U34 (TAG)

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

     256KB      (8) 32K x 8    (1) 64K x 1    (1) 32K x 8

       CACHE JUMPER CONFIGURATION

   Size      JP8       JP9      JP10

   64KB      Open     Open      Open

  256KB     Closed   Closed    Closed

                          CPU TYPE CONFIGURATION

      Type               JP5                JP6                JP7

     80486SX            Open             pins 2 & 3            Open
                                           closed

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

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