
ACTION WELL DEVELOPMENT, LTD.

AM-8887

Device     Mainboard
Type
Processor  80486SX/UMC486DX/AM486DX/80486DX/SL80486DX/UMC486DX2/
           CX486DX2/IBM486DX2/TI486DX2/AM486DX2/80486DX2/

           SL80486DX2/CX486DX4/IBM486DX4/TI486DX4/AM486DX4/

           (SL) AM486DX4/SL80486DX4/P24D/P24T/CX 5X86/AM 5X86
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed
           100(internal)/120(internal)/133(internal)MHz
Chip Set   UMC
Maximum    64MB (EDO & SDRAM supported)
Onboard
Memory
Cache      128/256/512KB
BIOS       AMI
Dimensions 220mm x 180mm
I/O        32-bit PCI slots (3), floppy drive interface, green PC
Options    connector, IDE interfaces (2), parallel port, serial ports (2),
           IR connector

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Serial port 2              CN1       Green PC connector         J10

  Serial port 1              CN2       IDE interface LED          J29

  Floppy drive interface     CN3       Turbo switch               J30

  Parallel port              CN4       Reset switch               J31

  IDE interface 2            CN5       Turbo LED                  J32

  IDE interface 1            CN6       Speaker                    J33

  External battery            J2       Power LED & keylock        J34

  IR connector                J3       32-bit PCI slots         PC1  PC3

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      Battery type select internal            J2            Pins 1 & 2
                                                              closed

      Battery type select external            J2               Open

      CMOS memory clear                       J2            Pins 3 & 4
                                                              closed

     Flash BIOS voltage select 5v            J5            Pins 2 & 3
                                                              closed

      Flash BIOS voltage select 12v           J5            Pins 1 & 2
                                                              closed

                            SIMM CONFIGURATION

     Size         Bank 0          Bank 1         Bank 2         Bank 3

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

     2MB         (1) 512K x        None           None           None
                    36

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

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

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

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

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

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

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

     16MB       (1) 4M x 36        None           None           None

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

     18MB       (1) 4M x 36     (1) 512K x        None           None
                                    36

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

     32MB       (1) 8M x 36        None           None           None

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

                        SIMM CONFIGURATION (CONT)

     Size         Bank 0         Bank 1         Bank 2         Bank 3

     33MB       (1) 8M x 36     (1) 256K x       None           None
                                   36

     34MB       (1) 8M x 36     (1) 512K x       None           None
                                   36

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

     48MB       (1) 8M x 36    (1) 4M x 36       None           None

     64MB       (1) 8M x 36    (1) 8M x 36       None           None

  Note: Board accepts EDO memory.

              CACHE CONFIGURATION

      Size          Bank 0           TAG

     128KB        (4) 32K x 8    (1) 32K x 8

     256KB        (4) 64K x 8    (1) 32K x 8

     512KB        (4) 128K x 8   (1) 32K x 8

               CACHE JUMPER CONFIGURATION

            Size                        J1

           128KB                       Open

           256KB                 Pins 1 & 2 closed

           512KB             Pins 1 & 2, 3 & 4 closed

                         CPU SPEED SELECTION

               Speed                              J28

               25MHz                       Pins 1 & 2 closed

               33MHz                Pins 1 & 2, 3 & 4, 5 & 6 closed

               40MHz                    Pins 1 & 2, 3 & 4 closed

              50iMHz                       Pins 1 & 2 closed

               50MHz                       Pins 5 & 6 closed

              66iMHz                Pins 1 & 2, 3 & 4, 5 & 6 closed

              75iMHz                       Pins 1 & 2 closed

              80iMHz                    Pins 1 & 2, 3 & 4 closed

              100iMHz               Pins 1 & 2, 3 & 4, 5 & 6 closed

              120iMHz                   Pins 1 & 2, 3 & 4 closed

              133iMHz               Pins 1 & 2, 3 & 4, 5 & 6 closed

                            CPU TYPE SELECTION

       Type          J6        J7         J12         J13          J14

     80486SX        1 & 2     1 & 2       Open       2 & 3        Open

     UMC486DX       1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

     AM486DX        1 & 2     2 & 3       Open      1 & 2, 3      Open
                                                      & 4

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

    SL80486DX       1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

    UMC486DX2       1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

     CX486DX2       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

    IBM486DX2       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

     TI486DX2       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

     AM486DX2       1 & 2     2 & 3       Open      1 & 2, 3      Open
                                                      & 4

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

    SL80486DX2      1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

     CX486DX4       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

    IBM486DX4       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

     TI486DX4       2 & 3     1 & 2     1 & 2, 3    1 & 2, 3      2 & 3
                                          & 4         & 4

     AM486DX4       1 & 2     2 & 3       Open      1 & 2, 3      Open
                                                      & 4

  (SL) AM486DX4     1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

    SL80486DX4      1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

       P24D         1 & 2     1 & 2     1 & 2, 3    1 & 2, 3      Open
                                          & 4         & 4

       P24T         1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      1 & 2
                                          & 5         & 4

     CX 5X86        1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

     AM 5X86        1 & 2     1 & 2     2 & 3, 4    1 & 2, 3      Open
                                          & 5         & 4

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

      Type           J15        J16        J17         J18         J19

     80486SX        Open       1 & 2       Open       Open        Open

    UMC486DX        3 & 4      3 & 4       Open       Open        Open

     AM486DX        3 & 4      1 & 2       Open       Open        Open

     80486DX        3 & 4      1 & 2       Open       Open        Open

    SL80486DX       3 & 4      3 & 4       Open       Open        Open

    UMC486DX2       3 & 4      3 & 4       Open       Open        Open

    CX486DX2        3 & 4      3 & 4      2 & 3       1 & 2       2 & 3

    IBM486DX2       3 & 4      3 & 4      2 & 3       1 & 2       2 & 3

    TI486DX2        3 & 4      3 & 4      2 & 3       1 & 2       2 & 3

    AM486DX2        3 & 4      1 & 2       Open       Open        Open

    80486DX2        3 & 4      1 & 2       Open       Open        Open

   SL80486DX2       3 & 4      3 & 4       Open       Open        Open

    CX486DX4        3 & 4      3 & 4      2 & 3       1 & 2       Open

    IBM486DX4       3 & 4      3 & 4      2 & 3       1 & 2       Open

    TI486DX4        3 & 4      3 & 4      2 & 3       1 & 2       Open

    AM486DX4        3 & 4      1 & 2       Open       Open        Open

  (SL) AM486DX4     3 & 4      3 & 4       Open       Open        Open

   SL80486DX4       3 & 4      3 & 4       Open       Open        Open

      P24D          3 & 4      3 & 4       Open       Open        Open

      P24T          2 & 3     3 & 4, 5    1 & 2       2 & 3       Open
                                & 6

     CX 5X86        3 & 4      3 & 4       Open       Open        Open

     AM 5X86        3 & 4      3 & 4       Open       Open        Open

  Note: Pins designated should be in the closed position.

                        CPU TYPE SELECTION (CONT)

      Type          J20        J21         J22        J23         J24

     80486SX        Open       Open       Open       Open         Open

    UMC486DX       1 & 2      2 & 3       Open       1 & 2        Open

     AM486DX        Open       Open       Open       Open         Open

     80486DX        Open       Open       Open       Open         Open

    SL80486DX      1 & 2      2 & 3       Open       1 & 2        Open

    UMC486DX2      1 & 2      2 & 3       Open       1 & 2        Open

    CX486DX2       2 & 3       Open       Open       1 & 2        Open

    IBM486DX2      2 & 3       Open       Open       1 & 2        Open

    TI486DX2       2 & 3       Open       Open       1 & 2        Open

    AM486DX2        Open       Open       Open       Open         Open

    80486DX2        Open       Open       Open       Open         Open

   SL80486DX2      1 & 2      2 & 3       Open       1 & 2        Open

    CX486DX4       2 & 3       Open       Open       1 & 2        Open

    IBM486DX4      2 & 3       Open       Open       1 & 2        Open

    TI486DX4       2 & 3       Open       Open       1 & 2        Open

    AM486DX4        Open       Open       Open       Open         Open

  (SL) AM486DX4    1 & 2       Open       2 & 3      1 & 2       Closed

   SL80486DX4      1 & 2       Open       Open       1 & 2        Open

      P24D         1 & 2      2 & 3       2 & 3      1 & 2       Closed

      P24T         1 & 2      2 & 3       Open       1 & 2        Open

     CX 5X86       1 & 2       Open       2 & 3      1 & 2        Open

     AM 5X86       1 & 2      1 & 2       2 & 3      1 & 2       Closed

  Note: Pins designated should be in the closed position.

                    CPU TYPE SELECTION (CONT)

      Type             J25              J26              J27

     80486SX           Open             Open            Open

    UMC486DX           Open             Open            Open

     AM486DX           Open             Open            Open

     80486DX           Open             Open            Open

    SL80486DX          Open             Open            Open

    UMC486DX2          Open             Open            Open

    CX486DX2           Open             Open            Open

    IBM486DX2          Open             Open            Open

    TI486DX2           Open             Open            Open

    AM486DX2           Open             Open            Open

    80486DX2           Open             Open            Open

   SL80486DX2          Open             Open            Open

    CX486DX4           Open             Open            Open

    IBM486DX4          Open             Open            Open

    TI486DX4           Open             Open            Open

    AM486DX4           Open             Open            Open

  (SL) AM486DX4       Closed           Closed           Open

   SL80486DX4          Open             Open            Open

      P24D            Closed           Closed           Open

      P24T             Open             Open            Open

     CX 5X86          Closed            Open           Closed

     AM 5X86          Closed           Closed           Open

                           CPU VOLTAGE SELECTION

      Voltage              J8                J9                J35

       3.3v            Pins 2 & 3         Pins 2 & 3          Closed
                         closed            closed

        4v             Pins 2 & 3         Pins 2 & 3           Open
                         closed            closed

        5v             Pins 1 & 2         Pins 1 & 2           Open
                         closed            closed

