ROBOTECH, INC.

VL-BUS 486

Processor        80486SX/80486DX/80486DX2
Processor Speed  20/25/33/50(internal)/50/66(internal)MHz
Chip Set         Toshiba
Max. Onboard DRAM32MB
Cache            32/64/128/256KB
BIOS             AMI
Dimensions       254mm x 220mm
I/O Options      32-bit VESA local bus slots (2)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Turbo LED                  JP3       Turbo switch               JP10

  Speaker                    JP7       External battery           JP25

  Power LED & keylock        JP8       32-bit VESA local bus   SL1 & SL2
                                       slots

  Reset switch               JP9

                        USER CONFIGURABLE SETTINGS

                Function                    Jumper           Position

  »   Turbo switch select turbo              JP10             Closed

      Turbo switch select normal             JP10              Open

  »   CMOS memory normal operation           JP24           pins 2 & 3
                                                              closed

      CMOS memory clear                      JP24           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

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

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

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

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

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

                        CACHE JUMPER CONFIGURATION

   Size     JP14     JP15      JP16      JP17     JP20     JP21     JP22

   32KB     1 & 2    Open      Open      Open     2 & 3   2 & 3    1 & 2

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

  128KB     1 & 2   Closed     Open     Closed    1 & 2   1 & 2    2 & 3

  256KB     2 & 3   Closed    Closed    Closed    1 & 2   1 & 2    1 & 2

  Note: Pins designated should be in the closed position.

                          CPU TYPE CONFIGURATION

        Type                JP12             JP13              JP18

       80486SX           pins 2 & 3          Open            pins 1 & 2
                           closed                             closed

     80486DX/DX2         pins 1 & 2         Closed           pins 2 & 3
                           closed                             closed