
LION COMPUTERS, INC.

LOCAL ISA 486 USA REV.1

Processor        80486SX/80487SX/80486DX/ODP486SX/80486DX2/ODP586SX
Processor Speed  20/25/33/40(Internal)/50(Internal)/50/66(Internal)MHz
Chip Set         C & T
Max. onboard DRAM32MB
Cache            64/128/256KB
BIOS             AMI
Dimensions       220mm x 218mm
I/O Options      32-bit VESA local bus slots (2)
NPU Options      None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Turbo LED                  JP10      External battery           JP17

  Speaker                    JP11      Turbo switch               JP32

  Power LED & keylock        JP13      32-bit VESA local bus       S1
                                       slot

  Reset switch               JP15      32-bit VESA local bus       S2
                                       slot

                        USER CONFIGURABLE SETTINGS

                Function                      Jumper         Position

     Factory configured - do not alter        JP1            Closed

     Factory configured - do not alter        JP9           pins 2 & 3
                                                              closed

     Monitor type select color                JP12           Closed

      Monitor type select monochrome           JP12            Open

     CMOS memory normal operation             JP16          pins 1 & 2
                                                              closed

      CMOS memory clear                        JP16          pins 2 & 3
                                                              closed

     Factory configured - do not alter        JP29          pins 2 & 3
                                                              closed

     Factory configured - do not alter        JP36          pins 1 & 2
                                                              closed

     VESA video card chipset type             JP37          pins 1 & 2
      select S3 or Western Digital                            closed

      VESA video card chipset type             JP37          pins 2 & 3
      select other                                            closed

     Factory configured - do not alter        JP38          pins 1 & 2
                                                              closed

     Factory configured - do not alter       JP100            Open

     Factory configured - do not alter       JP101            Open

     Factory configured - do not alter       JP102          pins 2 & 3
                                                              closed

  Note: JP37 is present only on the Rev.1 system boards.

              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

      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) 8K x 8

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

                        CACHE JUMPER CONFIGURATION

      Size               JP6               JP7                 JP8

      64KB            pins 2 & 3        pins 2 & 3      pins 2 & 4 closed
                       closed             closed

      128KB           pins 2 & 3        pins 1 & 2      pins 2 & 3 closed
                       closed             closed

      256KB           pins 1 & 2        pins 1 & 2      pins 1 & 2 closed
                       closed             closed

       VESA WAIT STATE (ID2) CONFIGURATION

   Wait states      CPU speed           ID2

  0 wait states        33MHz          Closed

  1 wait state        > 33MHz           Open

  VESA BUS SPEED (ID3) CONFIGURATION

     CPU speed             ID3

       33MHz              Open

      > 33MHz             Closed

         CPU SPEED CONFIGURATION

        Speed                JP30

        20MHz         pins 2 & 3 closed

        25MHz         pins 2 & 3 closed

        33MHz         pins 1 & 2 closed

       40i MHz        pins 2 & 3 closed

       50i MHz        pins 2 & 3 closed

        50MHz         pins 1 & 2 closed

       66i MHz        pins 1 & 2 closed

                          CPU TYPE CONFIGURATION

      Type            JP2           JP3            JP4            JP5

    80486SX        pins 1 & 2       Open          Open           Open
                    closed

    80487SX        pins 2 & 3      Closed       pins 1 & 2      Closed
                    closed                       closed

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

    ODP486SX       pins 2 & 3      Closed       pins 1 & 2      Closed
                    closed                       closed

    80486DX2       pins 2 & 3      Closed       pins 2 & 3       Open
                    closed                       closed

    ODP586SX       pins 2 & 3      Closed       pins 1 & 2      Closed
                    closed                       closed

