JOINDATA SYSTEMS, INC.

G486SLC

Processor         80486SX/80486DX
Processor Speed   25/33MHz
Chip Set          Symphony
Max. Onboard DRAM 32MB
SRAM Cache        64/128/256/1024KB
BIOS              AMI/MR
Dimensions        330mm x 260mm
I/O Options       32-bit external memory card slot
NPU Options       4167

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                   Location

  Reset switch               J9       Power LED & keylock         J13

  Turbo LED                 J10       External battery            J14

  Turbo switch              J11       32-bit external memory       S1
                                      card

  Speaker                   J12

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

  »   Factory configured - do not              JP6           Pins 1 & 2
      alter.                                                  Closed

  »   Factory configured - do not             JP11            Closed
      alter.

  »   Monitor type select color               JP12            closed

      Monitor type select monochrome          JP12             open

  Note: JP6 and JP11 are set for the G486SLC-50MHz, other settings are
  unidentified.

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

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

      16MB        (4) 4M x 9         NONE

      17MB        (4) 4M x 9     (4) 256K 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              Bank 1               TAG

   64KB       (4) 8K x 8          (4) 8K x 8          (1) 8K x 8

  128KB       (4) 32K x 8            NONE            (1) 32K x 8

  256KB       (4) 32K x 8         (4) 32K x 8        (1) 32K x 8

  1024KB     (4) 128K x 8        (4) 128K x 8        (1) 128K x 8

                     CACHE JUMPER CONFIGURATION

   Size      JP7       JP9      JP10      JP18      JP19      JP20

   64KB      Open    Closed    Closed     Open      Open     Closed

  128KB     Closed    Open      Open      Open     Closed     Open

  256KB      Open    Closed    Closed    Closed     Open      Open

  1024KB     Open    Closed    Closed    Closed     Open      Open

                        CACHE JUMPER CONFIGURATION

   Size       JP21        JP22       JP23       JP24      JP26     JP27

   64KB      Closed       Open      Closed      Open     2 & 3     2 & 3

   128KB      Open       Closed      Open       Open     2 & 3     2 & 3

   256KB     Closed       Open       Open      Closed    2 & 3     2 & 3

  1024KB     Closed       Open       Open      Closed    1 & 2     1 & 2

  Note:JP26 & JP27 may not be present on all boards. Pins designated
  should be in the closed position.

                          CPU TYPE CONFIGURATION

       Type               JP3               JP4                JP8

      80486DX            Closed          pins 1 & 2           Closed
                                           closed

      80486SX             Open           pins 2 & 3            Open
                                           closed

                    BATTERY CONFIGURATION

        Type                 J14                  JP2

       146818          pins 1 & 2 closed          Open

       DS1287                Open                Closed