
UNIDENTIFIED

POWERSPEC (VER. 2)

Processor               CX486S/80486SX/ODP486SX/80486DX/80486DX2/ODP486DX2
Processor Speed         20/25/33/40/50(internal)/50/66(internal)MHz
Chip Set                Unidentified
Video Chip Set          None
Maximum Onboard Memory  64MB
Maximum Video Memory    None
Cache                   32/64/128/256KB
BIOS                    AMI
Dimensions              254mm x 218mm
I/O Options             32-bit VESA local bus slots (3)
NPU Options             None

[Image]

                                CONNECTIONS

  Purpose                  Location     Purpose                 Location

  External battery           JP21       Turbo switch              JP25

  Power LED & keylock        JP22       Reset switch              JP26

  Speaker                    JP23       32-bit VESA local      SL1  SL3
                                        bus slots

  Turbo LED                  JP24

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Battery type select internal            JP1             Closed

      Battery type select external            JP1              Open

                        DRAM CONFIGURATION

      Size            Bank 0           Bank 1          Bank 2

       1MB         (4) 256K x 9         None            None

       2MB         (4) 256K x 9    (1) 256K x 36        None

       2MB         (4) 256K x 9         None        (1) 256K x 36

       2MB             None        (1) 256K x 36    (1) 256K x 36

       2MB             None        (1) 512K x 36        None

       3MB         (4) 256K x 9    (1) 256K x 36    (1) 256K x 36

       3MB         (4) 256K x 9    (1) 512K x 36        None

       3MB             None        (1) 512K x 36    (1) 256K x 36

       4MB          (4) 1M x 9          None            None

       4MB             None        (1) 512K x 36    (1) 512K x 36

       5MB          (4) 1M x 9     (1) 256K x 36        None

       5MB             None         (1) 1M x 36     (1) 256K x 36

       5MB         (4) 256K x 9         None         (1) 1M x 36

       6MB          (4) 1M x 9     (1) 256K x 36    (1) 256K x 36

       6MB         (4) 256K x 9     (1) 1M x 36     (1) 256K x 36

       6MB         (4) 256K x 9    (1) 256K x 36     (1) 1M x 36

       6MB             None        (1) 512K x 36     (1) 1M x 36

       7MB          (4) 1M x 9     (1) 512K x 36    (1) 256K x 36

       8MB          (4) 1M x 9      (1) 1M x 36         None

       8MB             None         (1) 1M x 36      (1) 1M x 36

       9MB          (4) 1M x 9      (1) 1M x 36     (1) 256K x 36

       9MB         (4) 256K x 9     (1) 1M x 36      (1) 1M x 36

      10MB          (4) 1M x 9     (1) 512K x 36     (1) 1M x 36

      12MB          (4) 1M x 9      (1) 1M x 36      (1) 1M x 36

      12MB          (4) 1M x 9      (1) 2M x 36         None

      12MB             None         (1) 2M x 36      (1) 1M x 36

      13MB         (4) 256K x 9     (1) 2M x 36      (1) 1M x 36

      13MB          (4) 1M x 9      (1) 2M x 36     (1) 256K x 36

      16MB          (4) 4M x 9          None            None

      16MB          (4) 1M x 9      (1) 2M x 36      (1) 1M x 36

      16MB             None         (1) 2M x 36      (1) 2M x 36

      17MB          (4) 4M x 9     (1) 256K x 36        None

      17MB         (4) 256K x 9         None         (1) 4M x 36

      18MB          (4) 4M x 9     (1) 256K x 36    (1) 256K x 36

      18MB         (4) 256K x 9     (1) 4M x 36     (1) 256K x 36

      19MB          (4) 4M x 9     (1) 512K x 36    (1) 256K x 36

      20MB          (4) 4M x 9      (1) 1M x 36         None

                    DRAM CONFIGURATION (CONT)

      Size            Bank 0           Bank 1          Bank 2

      20MB          (4) 1M x 9          None         (1) 4M x 36

      21MB         (4) 256K x 9     (1) 4M x 36      (1) 1M x 36

      21MB          (4) 1M x 9     (1) 256K x 36     (1) 4M x 36

      21MB          (4) 4M x 9     (1) 256K x 36     (1) 1M x 36

      22MB          (4) 4M x 9     (1) 512K x 36     (1) 1M x 36

      24MB          (4) 4M x 9      (1) 1M x 36      (1) 1M x 36

      24MB          (4) 1M x 9      (1) 4M x 36      (1) 1M x 36

      24MB             None         (1) 2M x 36      (1) 4M x 36

      25MB         (4) 256K x 9     (1) 2M x 36      (1) 4M x 36

      25MB          (4) 4M x 9      (1) 2M x 36     (1) 256K x 36

      28MB          (4) 4M x 9      (1) 2M x 36      (1) 1M x 36

      28MB          (4) 1M x 9      (1) 2M x 36      (1) 4M x 36

      32MB          (4) 4M x 9      (1) 4M x 36         None

      32MB             None         (1) 4M x 36      (1) 4M x 36

      33MB         (4) 256K x 9     (1) 4M x 36      (1) 4M x 36

      33MB          (4) 4M x 9      (1) 4M x 36     (1) 256K x 36

      34MB          (4) 4M x 9     (1) 512K x 36     (1) 4M x 36

      36MB          (4) 1M x 9      (1) 4M x 36      (1) 4M x 36

      36MB          (4) 4M x 9      (1) 4M x 36      (1) 1M x 36

      40MB          (4) 4M x 9      (1) 2M x 36      (1) 4M x 36

      48MB          (4) 4M x 9      (1) 4M x 36      (1) 4M x 36

      64MB         (4) 16M x 9          None            None

  Note: Banks 1 & 2 are interchangeable.

                            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) 16K/32K x 8

                   CACHE JUMPER CONFIGURATION

   Size       JP15       JP16       JP17       JP19       JP20

   32KB       2 & 3      Open       Open       Open       Open

   64KB       1 & 2      Open       Open      Closed      Open

   128KB      2 & 3      2 & 3     Closed     Closed      Open

   256KB      1 & 2      1 & 2     Closed     Closed     Closed

  Note: Pins designated should be in the closed position.

         CACHE TAG CONFIGURATION

        Size                 JP27

       8K x 8         Pins 1 & 2 closed

       16K x 8        Pins 2 & 3 closed

       32K x 8        Pins 1 & 2 closed

                       CPU SPEED SELECTION

   Speed       JP2        JP3        JP4        JP7       JP18

   20MHz      Open       Open       Open       1 & 2      Open

   25MHz     Closed      Open       Open       1 & 2      Open

   33MHz     Closed     Closed     Closed      1 & 2      Open

   40MHz     Closed     Closed      Open       2 & 3     Closed

  50iMHz     Closed      Open       Open       1 & 2      Open

   50MHz      Open       Open      Closed      2 & 3     Closed

  66iMHz     Closed     Closed     Closed      1 & 2      Open

  Note: Pins designated should be in the closed position.

                            CPU TYPE SELECTION

        Type           JP6        JP9        JP11      JP12        JP14

       CX486S          Open       Open      2 & 3      2 & 3       Open

   CX486S+CX83D87     1 & 2      1 & 2     1 & 2, 3    1 & 2      2 & 3
                                             & 4

      80486SX          Open       Open      2 & 3      2 & 3       Open

      ODP486SX         Open      2 & 3     1 & 2, 3    2 & 3       Open
                                             & 4

      80486DX          Open      1 & 2     1 & 2, 3    2 & 3       Open
                                             & 4

      80486DX2         Open      1 & 2     1 & 2, 3    2 & 3       Open
                                             & 4

     ODP486DX2         Open      2 & 3     1 & 2, 3    2 & 3       Open
                                             & 4

  Note: Pins designated should be in the closed position.

