TARGET MICRO

TYPHOON 486 VESA

Processor         80486SX/80487SX/80486DX/80486DX2
Processor Speed   20/25/33/50 (Internal)/50/66 (Internal)
Chip Set          Unichip
Max. onboard DRAM 128MB
Cache             32/64/128/256KB
BIOS              AMI
Dimensions        260mm x 220mm
I/O Options       32-bit VESA local bus slots (3)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                Location

  External battery           J4        Turbo switch             JP17

  Power LED & keylock        J5        Reset switch             JP18

  Speaker                    J6        32-bit VESA local     S1, S2, & S3
                                       bus slots

  Turbo LED                 JP16

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

  »   Monitor type select color                JP1             Open

      Monitor type select monochrome           JP1            Closed

  »   CMOS memory normal operation             JP2           pins 1 & 2
                                                              closed

      CMOS memory clear                        JP2           pins 2 & 3
                                                              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) 4M x 9      (4) 1M x 9

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

      64MB        (4) 16M x 9        NONE

      80MB        (4) 16M x 9     (4) 4M x 9

     128MB        (4) 16M x 9    (4) 16M x 9

                    CACHE CONFIGURATION

     Size          Bank 0         Bank 1          TAG

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

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

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

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

                        CACHE JUMPER CONFIGURATION

     Size           JP6             JP7            JP9           JP11

     32KB           Open           Open            Open       pins 2 & 3

     64KB           Open          Closed           Open       pins 1 & 2

    128KB           Open          Closed          Closed      pins 1 & 2,
                                                                 3 & 4

    256KB          Closed         Closed          Closed      pins 1 & 2,
                                                                 4 & 5

  Note:Pins designated should be in the closed position.

                       VESA LOCAL BUS SELECT

      Mode             JP40             JP41            JP42

  VL-Bus Master        Open             Open            Open

  VL-Bus Slave        Closed           Closed          Closed

             VESA CLOCK CONFIGURATION

          Mode                     JP43

  Adjusted VL-BUS clock     pins 1 & 2 closed

   Normal VL-BUS clock      pins 2 & 3 closed

              VESA BUS SPEED (ID3) CONFIGURATION

      CPU speed           JP19 (ID3)             JP44

       £ 33MHz               Open          pins 2 & 3 closed

       > 33MHz              Closed         pins 1 & 2 closed

                VESA ID4 CONFIGURATION

          Setting                  JP20 (ID4)

  Reserved for future use            Closed

          CPU SPEED CONFIGURATION

   Speed      JP29       JP30      JP31

   20MHz      Open      Closed    Closed

   25MHz     Closed      Open     Closed

   33MHz     Closed     Closed     Open

  50i MHz    Closed      Open     Closed

   50MHz      Open      Closed     Open

  66i MHz    Closed     Closed     Open

                        CPU TYPE CONFIGURATION

               Type                               JP4

              80486SX                         5 & 6 closed

              80487SX               pins 2 & 3, 4 & 5, 6 & 7 closed

              80486DX               pins 1 & 2, 4 & 5, 6 & 7 closed

             80486DX2               pins 1 & 2, 4 & 5, 6 & 7 closed