ZIDA TECHNOLOGIES, LTD.

OPTI 386SX

Processor         80386SX/CX486SLC
Processor Speed   16/20/25MHZ
Chip Set          OPTI
Max. Onboard DRAM 16MB
Cache             16/32/64/128KB
BIOS              AMI
Dimensions        170mm x 220mm
I/O Options       32-bit proprietary local bus slot
NPU Options       80387SX

[Image]

                                CONNECTIONS

  Purpose              Location      Purpose                   Location

  External battery        J1         Turbo LED                   J15

  Power LED &             J12        Turbo Switch                J16
  Keylock

  Reset Switch            J13        32-bit proprietary           S1
                                     local bus slot

  Speaker                 J14

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Local bus signal select TTL level        J2            pins 1 & 2
                                                              closed

      Local bus signal select Tri state        J2            pins 2 & 3
      level                                                   closed

  »   Monitor type select color                J3              Open

      Monitor type select monochrome           J3             Closed

  »   CPU type select Intel/AMD             J4 & J11           Open

      CPU type select Cyrix                 J4 & J11          Closed

              DRAM CONFIGURATION

      Size          Bank 0          Bank 1

     512KB        (2) 256K x 9       NONE

      1MB         (2) 256K x 9   (2) 256K x 9

     1.5MB        (2) 1M x 9     (2) 256K x 9

      2MB         (2) 1M x 9         NONE

      4MB         (2) 1M x 9      (2) 1M x 9

      8MB         (2) 4M x 9         NONE

     8.5MB        (2) 4M x 9     (2) 256K x 9

      10MB        (2) 4M x 9      (2) 1M x 9

      16MB        (2) 4M x 9      (2) 4M x 9

                         CACHE CONFIGURATION

   Size        Bank 0         Bank 1       Tag (U26)      Tag (U27)

   16KB      (2) 8K x 8        None        (1) 8K x 8       NONE

   32KB      (2) 8K x 8     (2) 8K x 8     (1) 8K x 8       NONE

   64KB      (2) 32K x 8       NONE        (1) 8K x 8       NONE

   128KB     (2) 32K x 8    (2) 32K x 8    (1) 8K x 8    (1) 8K x 8

                        CACHE JUMPER CONFIGURATION

  Size        J5           J6         J7        J8        J9        J10

  16KB     pins 2 & 3   pins 2 &     Open      Open      Open      Open
            closed      3 closed

  32KB     pins 2 & 3   pins 2 &     Open     Closed     Open      Open
            closed      3 closed

  64KB     pins 1 & 2   pins 2 &    Closed    Closed    Closed     Open
            closed      3 closed

  128KB    pins 1 & 2   pins 1 &    Closed    Closed    Closed    Closed
            closed      2 closed