
TMC RESEARCH CORPORATION

PAT48AN

Processor     CX486M6/80486SX/80487SX/CX486M7/80486DX/80486DX2/ Pentium
              Overdrive
Processor     25/33/40/50(internal)/50/66(internal)/MHz
Speed
Chip Set      ALI
Max. Onboard  128MB
DRAM
Cache         64/128/256KB
BIOS          Unidentified
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          J2         Reset switch          J8 pins 9 &
                                                                 19

  IDE interface LED         J7         IDE interface LED     J8 pins 10 &
                                                                 20

  Speaker               J8 pins 1 -    Power LED &           J8 pins 11 -
                             4         keylock                   15

  Turbo switch          J8 pins 7 &    32-bit VESA local      SL1 - SL3
                            17         bus slots

  Turbo LED             J8 pins 8 &
                            18

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Monitor type select color                J3             Closed

      Monitor type select monochrome           J3              Open

     Factory configured - do not              J4              N/A
      alter

     Factory configured - do not              J5              N/A
      alter

     Battery type select internal            JP2           pins 1 & 2
                                                              closed

      Battery type select external            JP2           pins 1 & 2
                                                              closed

      CMOS memory clear                       JP2           pins 2 & 3
                                                              closed

                     DRAM CONFIGURATION 1

      Size          Bank 0          Bank 1          Bank 2

      4MB         (1) 1M x 36        NONE            NONE

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

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

      16MB        (1) 4M x 36        NONE            NONE

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

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

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

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

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

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

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

      64MB       (1) 16M x 36        NONE            NONE

      72MB        (1) 1M x 36     (1) 1M x 36    (4) 16M x 9

      80MB        (1) 4M x 36    (1) 16M x 36        NONE

      84MB        (1) 1M x 36     (1) 4M x 36    (4) 16M x 9

      84MB        (1) 4M x 36    (1) 16M x 36     (4) 1M x 9

      96MB        (1) 4M x 36     (1) 4M x 36    (4) 16M x 9

      96MB        (1) 4M x 36    (1) 16M x 36     (4) 4M x 9

     128MB       (1) 16M x 36    (1) 16M x 36        NONE

                   DRAM CONFIGURATION 2

     Size          Bank 0         Bank 1        Bank 2

      4MB           NONE           NONE       (4) 1M x 9

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

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

     16MB           NONE           NONE       (4) 4M x 9

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

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

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

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

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

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

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

                 DRAM CONFIGURATION 2 (CONT)

      Size          Bank 0          Bank 1          Bank 2

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

      64MB           NONE            NONE        (4) 16M x 9

      72MB        (1) 1M x 36    (1) 16M x 36     (4) 1M x 9

      80MB       (1) 16M x 36        NONE         (4) 4M x 9

      84MB        (1) 4M x 36    (1) 16M x 36     (4) 1M x 9

      84MB       (1) 16M x 36     (1) 1M x 36     (4) 4M x 9

      96MB        (1) 4M x 36    (1) 16M x 36     (4) 4M x 9

      96MB       (1) 16M x 36     (1) 4M x 36     (4) 4M x 9

     128MB       (1) 16M x 36        NONE        (4) 16M x 9

             DRAM CONFIGURATION 3

      Size          Bank 0          Bank 2

      12MB        (1) 2M x 36     (4) 1M x 9

      24MB        (1) 2M x 36     (4) 4M x 9

      36MB        (1) 8M x 36     (4) 1M x 9

      48MB        (1) 8M x 36     (4) 4M x 9

      72MB        (1) 2M x 36    (4) 16M x 9

      96MB        (1) 8M x 36    (4) 16M x 9

     128MB        (1) 32M x 36       NONE

                      DRAM JUMPER CONFIGURATION

  Configuration         RNA              RNB              RNC

        1            Installed      Not installed    Not installed

        2          Not installed      Installed      Not installed

        3          Not installed    Not installed      Installed

                    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 RESISTOR CONFIGURATION

      Size             RN64            RN128            RN256

      64KB          Installed      Not installed    Not installed

      128KB       Not installed      Installed      Not installed

      256KB       Not installed    Not installed      Installed

                          CPU TYPE CONFIGURATION

      Type            JP6            JP7           JP8           JP12

     CX486M6       pins 2 & 3     pins 1 & 2    pins 2 & 3       Open
                     closed        closed        closed

   CXM6 module     pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 2 & 3
                     closed        closed        closed         closed

     80486SX       pins 1 & 2     pins 1 & 2    pins 1 & 2       Open
                     closed        closed        closed

     80487SX       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 1 & 2
                     closed        closed        closed         closed

     CX486M7       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 2 & 3
                     closed        closed        closed         closed

     80486DX       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 2 & 3
                     closed        closed        closed         closed

    80486DX2       pins 1 & 2     pins 1 & 2    pins 1 & 2    pins 2 & 3
                     closed        closed        closed         closed

     Pentium       pins 1 & 2     pins 2 & 3    pins 1 & 2    pins 1 & 2
    Overdrive        closed        closed        closed         closed

                      CPU TYPE CONFIGURATION (CONT)

       Type            JP13          JP14          JP15          JP16

     CX486M6        pins 1 & 2     pins 1 & 2      Open          Open
                      closed        closed

   CXM6 module      pins 1 & 2     pins 1 & 2     Closed        Closed
                      closed        closed

     80486SX        pins 1 & 2     pins 1 & 2     Closed        Closed
                      closed        closed

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

     CX486M7        pins 1 & 2     pins 1 & 2     Closed        Closed
                      closed        closed

     80486DX        pins 1 & 2     pins 1 & 2     Closed        Closed
                      closed        closed

     80486DX2       pins 1 & 2     pins 1 & 2     Closed        Closed
                      closed        closed

      Pentium       pins 2 & 3     pins 2 & 3     Closed        Closed
    Overdrive         closed        closed

                      CPU TYPE CONFIGURATION (CONT)

      Type          JP17       JP18       JP19        JP26        JP27

     CX486M6        2 & 3     1 & 2      Closed      1 & 2        Open

   CXM6 module      Open      2 & 3       Open       2 & 3       Closed

     80486SX        Open      1 & 2       Open       1 & 2        Open

     80487SX        Open      2 & 3       Open       1 & 2        Open

     CX486M7        Open      2 & 3       Open       1 & 2        Open

     80486DX        Open      2 & 3       Open       1 & 2        Open

    80486DX2        Open      2 & 3       Open       1 & 2        Open

     Pentium        1 & 2     2 & 3       Open       1 & 2        Open
    Overdrive

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

         Speed                    JP20                     JP24

         25MHz            pins 1 & 2, 5 & 6, 7 &     pins 1 & 2 closed
                                8 closed

         33MHz            pins 1 & 2, 3 & 4, 7 &     pins 1 & 2 closed
                                8 closed

         40MHz            pins 3 & 4, 5 & 6, 7 &     pins 2 & 3 closed
                                8 closed

         50iMHz           pins 1 & 2, 5 & 6, 7 &     pins 1 & 2 closed
                                8 closed

         50MHz            pins 1 & 2, 5 & 6, 7 &     pins 2 & 3 closed
                                8 closed

         66iMHz           pins 1 & 2, 3 & 4, 7 &     pins 1 & 2 closed
                                8 closed

                        CPU FREQUENCY CONFIGURATION

     Frequency             JP9              JP21               JP22

       Single           pins 2 & 3        pins 2 & 3        pins 2 & 3
                          closed           closed             closed

        Dual            pins 1 & 2        pins 1 & 2        pins 1 & 2
                          closed           closed             closed

      VESA WAIT STATE CONFIGURATION

     Wait states             JP23

    0 wait states     pins 1 & 2 closed

    1 wait state      pins 2 & 3 closed

                 VL-BUS MASTER AND DRAM BANK CONFIGURATION

   VL-bus master      DRAM banks           JP10               JP11

         1                 4             pins 2 & 3         pins 1 & 2
                                          closed             closed

         2                 2             pins 2 & 3         pins 1 & 2
                                          closed             closed

