
TMC RESEARCH CORPORATION

PAT48SG (VER. 1.1), PAT48SG4(VER. 1.1B)

Processor  CX486SX/SL80486SX/80486SX/CX486DX/SL80486DX/80486DX/SL80486DX280486DX2/80486DX4/Pentium
           Overdrive
Processor  25/33/40/50(internal)/50/66(internal)/83(internal)/100(internal)MHz
Speed
Chip Set   Unidentified
Max.       128MB
Onboard
DRAM
Cache      128/256KB
BIOS       Unidentified
Dimensions 254mm x 218mm
I/O        32-bit VESA local bus slots (3), green PC connector
Options
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                Location

  External battery          J1         IDE interface LED     J4 pins 10 &
                                                                 20

  IDE interface LED         J3         Power LED &           J4 pins 11 -
                                       keylock                   15

  Speaker              J4 pins 1 - 4   Green PC connector        J5

  Turbo switch          J4 pins 7 &    Green PC LED              J6
                            17

  Turbo LED             J4 pins 8 &    32-bit VESA local      SL1 - SL3
                            18         bus slots

  Reset switch          J4 pins 9 &
                            19

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     Battery type select internal            JP21          pins 1 & 2
                                                              closed

      CMOS memory clear                       JP21          pins 2 & 3
                                                              closed

      Battery type select external            JP21             Open

     Monitor type select color               JP22            Closed

      Monitor type select monochrome          JP22             Open

     Factory configured - do not             JP23             N/A
      alter

     Factory configured - do not             JP26             N/A
      alter

     Factory configured - do not             JP27             N/A
      alter

     Factory configured - do not             JP28             N/A
      alter

     Factory configured - do not             JP29             N/A
      alter

                            DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2          Bank 3

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

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

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

     4MB         (1) 256K x     (1) 256K x     (1) 512K x        NONE
                    36             36             36

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

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

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

     6MB         (1) 256K x     (1) 256K x    (1) 1M x 36        NONE
                    36             36

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

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

     8MB        (1) 2M x 36       NONE           NONE            NONE

     10MB        (1) 256K x     (1) 256K x    (1) 1M x 36    (1) 1M x 36
                    36             36

     12MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36        NONE

     16MB       (1) 1M x 36    (1) 1M x 36    (1) 1M x 36    (1) 1M x 36

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

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

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

     18MB        (1) 256K x     (1) 256K x    (1) 4M x 36        NONE
                    36             36

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

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

     24MB       (1) 1M x 36    (1) 1M x 36    (1) 4M x 36        NONE

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

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

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

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

     40MB       (1) 1M x 36    (1) 1M x 36    (1) 8M x 36        NONE

     48MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36        NONE

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 4M x 36    (1) 4M x 36

     64MB       (1) 16M x 36      NONE           NONE            NONE

     64MB       (1) 4M x 36    (1) 4M x 36    (1) 8M x 36        NONE

                        DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

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

     65MB         (1) 256K x     (1) 16M x        NONE           NONE
                     36             36

     68MB        (1) 1M x 36     (1) 16M x        NONE           NONE
                                    36

     72MB        (1) 1M x 36    (1) 1M x 36     (1) 16M x        NONE
                                                   36

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

     96MB        (1) 4M x 36    (1) 4M x 36     (1) 16M x        NONE
                                                   36

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

                            CACHE CONFIGURATION

       Size              Bank 0            Bank 1              TAG

       128KB           (4) 32K x 8          NONE           (1) 8K x 8

       256KB           (4) 32K x 8      (4) 32K x 8       (1) 16K x 8 or
                                                           (1) 32K x 8

           CACHE RESISTOR CONFIGURATION

      Size            RN128            RN256

      128KB         Installed      Not installed

      256KB       Not installed      Installed

                          CPU TYPE CONFIGURATION

       Type           JP5         JP6        JP7        JP8        JP9

     CX486SX        2 & 3, 4     2 & 3     1 & 2, 3    2 & 3      2 & 3
                      & 5                    & 4

    SL80486SX        3 & 4       4 & 5      2 & 3      2 & 3      2 & 3

     80486SX          Open       Open        Open      2 & 3      2 & 3

     CX486DX         2 & 3       2 & 3     1 & 2, 3    1 & 2      2 & 3
                                             & 4

    SL80486DX        3 & 4       4 & 5      2 & 3      1 & 2      2 & 3

     80486DX          Open       Open        Open      1 & 2      2 & 3

    SL80486DX2       3 & 4       4 & 5      2 & 3      1 & 2      2 & 3

     80486DX2       1 & 2, 3     4 & 5      2 & 3      1 & 2      1 & 2
                      & 4

     80486DX4        3 & 4       4 & 5      2 & 3      1 & 2      2 & 3

      Pentium        3 & 4       1 & 2      2 & 3      1 & 2      1 & 2
    Overdrive

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

       Type           JP10        JP11      JP12       JP13        JP14

     CX486SX         Closed       Open      2 & 3      2 & 3       Open

    SL80486SX        Closed      1 & 2      Open       Open        Open

     80486SX         Closed       Open      Open       Open        Open

     CX486DX         Closed       Open      2 & 3      2 & 3      2 & 3

    SL80486DX        Closed      1 & 2      Open       Open       2 & 3

     80486DX         Closed       Open      Open       Open       2 & 3

    SL80486DX2       Closed      1 & 2      Open       Open       2 & 3

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

     80486DX4         Open       1 & 2      Open       Open       2 & 3

      Pentium        Closed       Open      1 & 2      1 & 2      1 & 2
    Overdrive

  Note: Pins designated should be in the closed position.

                      CPU TYPE CONFIGURATION (CONT)

      Type           JP16        JP18        JP19       JP24       JP25

     CX486SX         Open        Open        Open       1 & 2     2 & 3

    SL80486SX        Open        Open        Open       2 & 3     1 & 2

     80486SX         Open        Open        Open       2 & 3     1 & 2

     CX486DX         Open        Open       Closed      1 & 2     2 & 3

    SL80486DX        Open        Open       Closed      2 & 3     1 & 2

     80486DX         Open        Open       Closed      2 & 3     1 & 2

   SL80486DX2        Open        Open       Closed      2 & 3     1 & 2

    80486DX2        Closed      Closed      Closed      2 & 3     1 & 2

    80486DX4         Open        Open       Closed      2 & 3     1 & 2

     Pentium         Open        Open       Closed      1 & 2     1 & 2
    Overdrive

  Note: Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

   Speed      JP1        JP2        JP3        JP4       JP30      JP31

   25MHz      Open      Closed    Closed      Open      1 & 2      1 & 2

   33MHz      Open       Open     Closed     Closed     1 & 2      1 & 2

   40MHz      Open      Closed     Open       Open      2 & 3      2 & 3

  50iMHz      Open      Closed    Closed      Open      1 & 2      1 & 2

   50MHz     Closed     Closed    Closed      Open      2 & 3      2 & 3

  66iMHz      Open       Open     Closed     Closed     1 & 2      1 & 2

  83iMHz      Open       Open     Closed     Closed     1 & 2      1 & 2

  100iMHz     Open       Open     Closed     Closed     1 & 2      1 & 2

  100iMHz    Closed     Closed    Closed      Open      2 & 3      2 & 3

  Note: Pins designated should be in the closed position.

     CPU CORE FREQUENCY CONFIGURATION

      CPU Type               JP15

    Non 80486DX4             Open

   80486DX4-33/83     pins 2 & 3 closed

   80486DX4-33/100           Open

   80486DX4-50/100    pins 1 & 2 closed

