UNIDENTIFIED

VL-BUS

Processor  CX486S/80486SX/80487SX/CX486M6(WB)/CX486M6(WT)/80486DX/80486DX2/P24T/P24T(WB)/P24T(WT)
Processor  25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set   UNI
Video Chip None
Set
Maximum    128MB
Onboard
Memory
Maximum    None
Video
Memory
Cache      32/64/128/256KB
BIOS       AMI
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (3)
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Turbo switch                J4       External battery            J8

  Turbo LED                   J5       Reset switch               J10

  Speaker                     J6       32-bit VESA local bus   SL1 - SL3
                                       slots

  Power LED & keylock         J7

                        USER CONFIGURABLE SETTINGS

                 Function                      Label         Position

      Monitor type select monochrome            JP12           Open

      Monitor type select CGA                   JP12          Closed

      Monitor type select                       JP12        Any setting
      VGA/SVGA/EGA/XGA

  »   CMOS memory normal operation              JP14         Pins 1 & 2
                                                              closed

      CMOS memory clear                         JP14         Pins 2 & 3
                                                              closed

  »   Factory configured - do not alter        JP100         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

      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            (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/16K/32Kx 8

       256KB          (4) 32K x 8      (4) 32K x 8       (1) 16K/32Kx 8

                        CACHE JUMPER CONFIGURATION

     Size           JP20           JP21           JP22          JP25

     32KB           Open           Open          2 & 3          Open

     64KB           Open          Closed         1 & 2          Open

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

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

  Note: Pins designated should be in the closed position.

           CPU SPEED SELECTION

  Speed      JP16      JP17      JP18

  25MHz     Closed    Closed     Open

  33MHz     Closed     Open     Closed

  40MHz      Open     Closed     Open

  50iMHz    Closed    Closed     Open

  50MHz      Open      Open     Closed

  66iMHz    Closed     Open     Closed

                          CPU TYPE SELECTION

               Type                               JP2

              CX486S                       Pins 5 & 6 closed

              80486SX                      Pins 5 & 6 closed

              80487SX               Pins 1 & 2, 4 & 5, 6 & 7 closed

              80486DX               Pins 2 & 3, 4 & 5, 6 & 7 closed

             80486DX2               Pins 2 & 3, 4 & 5, 6 & 7 closed

               P24T                 Pins 1 & 2, 4 & 5, 6 & 7 closed

                            CPU TYPE SELECTION

     Type           JP1         JP4        JP5       JP10        JP11

  CX486M6 (WB)      Open       1 & 2      2 & 3     2 & 3        Open

  CX486M6 (WT)      Open       2 & 3      1 & 2     1 & 2        Open

    80486DX         Open       2 & 3      1 & 2     1 & 2        Open

   80486DX2         Open       2 & 3      1 & 2     1 & 2        Open

   P24T (WB)       Closed      2 & 3      1 & 2     1 & 2       Closed

   P24T (WT)        Open       2 & 3      1 & 2     1 & 2        Open

  Note: Pins designated should be in the closed position.

          VL-BUS SPEED SELECTION

       Setting               JP15

      <= 33MHz        Pins 1 & 2 closed

       >33 MHz        Pins 2 & 3 closed