
TEKNOR INDUSTRIAL COMPUTERS, INC.

TEK 735

Processor  80486DX/80486DX2/SL80486DX2/AM486DX4/80486DX4/AM486DX5
Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)/
Speed      133(internal)MHz
Chip Set   Unidentified
Video Chip Cirrus Logic
Set
Maximum    64MB
Onboard
Memory
Maximum    2MB
Video
Memory
Cache      128/256/512KB
BIOS       Award
Dimensions 339mm x 122mm
I/O        Floppy drive interface, IDE interfaces (2), SCSI interface,
Options    parallel port, PS/2 mouse interface, serial ports (2), VGA
           feature connector, VGA port
NPU        None
Options

[Image]

                                CONNECTIONS

  Purpose                 Location     Purpose                 Location

  CPU fan power              J1        IDE interface 2            J8

  SCSI interface             J2        VGA feature                J9
                                       connector

  IDE interface 1            J3        PS/2 mouse interface       J10

  Floppy drive               J4        Power connector            J12
  interface

  Keyboard, speaker,         J5        VGA port                   J14
  reset, LED

  Serial port 1              J6        Parallel port              J15

  Serial port 2              J7

                        USER CONFIGURABLE SETTINGS

                Function                    Label           Position

     BIOS boot select normal boot           J13              Open

      BIOS boot select emergency boot        J13             Closed

     IOCHRDY signal to IDE interface        W15              Open
      disabled

      IOCHRDY signal to IDE interface        W15             Closed
      enabled

     SCSI IRQ select IRQ11                  W18        Pins 2 & 3 closed

      SCSI IRQ select IRQ10                  W18        Pins 1 & 2 closed

     Serial download mode disabled       W19/pins 1          Open
                                             & 2

      Serial download mode enabled        W19/pins 1         Closed
                                             & 2

     VT100 mode disabled                 W19/pins 3          Open
                                             & 4

      VT100 mode enabled                  W19/pins 3         Closed
                                             & 4

     TEKNOR extension enabled            W19/pins 5          Open
                                             & 6

      TEKNOR extension disabled           W19/pins 5         Closed
                                             & 6

     On board video enabled              W19/pins 7          Open
                                             & 8

      On board video disabled             W19/pins 7         Closed
                                             & 8

     VGA high speed write select 1          W21             Closed
      wait state

      VGA high speed write select 0          W21              Open
      wait states

     SCSI I/O port select 340               W22              Open

      SCSI I/O port select 140               W22             Closed

     Watchdog timer enabled                 W24             Closed

      Watchdog timer disabled                W24              Open

     AT clock generation select             W25              Open
      >33MHz

      AT clock generation select             W25             Closed
      <33MHz

     Factory configured - do not            W26          Unidentified
      alter

     Power fail monitoring disabled         W29              Open

      Power fail monitoring enabled          W29             Closed

     Power failure detection source         W39        Pins 1 & 2 closed
      external power fail (pin 6 on
      J12)

      Power failure detection source         W39        Pins 2 & 3 closed
      internal/external battery <3v

      Battery type select internal           W40        Pins 1 & 2 closed

      Battery type select external           W40        Pins 2 & 3 closed

       SIMM CONFIGURATION

      Size          Bank 0

      1MB        (4) 256K x 9

      4MB         (4) 1M x 9

      16MB        (4) 4M x 9

                SIMM CONFIGURATION

      Size            Bank 1           Bank 2

       1MB        (1) 256K x 36         None

       2MB        (1) 256K x 36    (1) 256K x 36

       3MB        (1) 512K x 36    (1) 256K x 36

       4MB         (1) 1M x 36          None

       4MB        (1) 512K x 36    (1) 512K x 36

       5MB         (1) 1M x 36     (1) 256K x 36

       6MB         (1) 1M x 36     (1) 512K x 36

       8MB         (1) 2M x 36          None

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

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

      10MB         (1) 2M x 36     (1) 512K x 36

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

                       SIMM CONFIGURATION (CONT)

          Size                  Bank 1                  Bank 2

          16MB                (1) 4M x 36                None

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

          17MB                (1) 4M x 36            (1) 256K x 36

          18MB                (1) 4M x 36            (1) 512K x 36

          20MB                (1) 4M x 36             (1) 1M x 36

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

          32MB                (1) 8M x 36                None

          32MB                (1) 4M x 36             (1) 4M x 36

          33MB                (1) 8M x 36            (1) 256K x 36

          34MB                (1) 8M x 36            (1) 512K x 36

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

          40MB                (1) 8M x 36             (1) 2M x 36

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

          64MB                (1) 8M x 36             (1) 8M x 36

            Note: Memory installed in Banks 1 & 2 is interchangeable.

                      CACHE CONFIGURATION

      Size          Bank 0          Bank 1           TAG

     128KB        (4) 32K x 8        None        Unidentified

     256KB        (4) 32K x 8     (4) 32K x 8    Unidentified

     512KB        (4) 64K x 8     (4) 64K x 8    Unidentified

                        VIDEO MEMORY CONFIGURATION

  Note: Board accepts 1MB/2MB video memory. The configuration is
  unidentified.

                         CPU SPEED SELECTION

               Speed                              W20

               25MHz                       Pins 3 & 4 closed

               33MHz                       Pins 1 & 2 closed

               40MHz                              Open

              50iMHz                       Pins 3 & 4 closed

               50MHz                Pins 1 & 2, 3 & 4, 5 & 6 closed

              66iMHz                       Pins 1 & 2 closed

              75iMHz                       Pins 3 & 4 closed

              100iMHz                      Pins 1 & 2 closed

              133MHz                       Pins 1 & 2 closed

                            CPU TYPE SELECTION

        Type                 W2               W27              W28

       80486DX              Open             Open              Open

      80486DX2              Open             Open              Open

     SL80486DX2             Open             Open           Pins 2 & 3
                                                              closed

    AM486DX4 (2x)        Pins 1 & 2          Open              Open
                           closed

    AM486DX4 (3x)           Open             Open             2 & 3

    80486DX4 (2x)        Pins 1 & 2          Open              Open
                           closed

    80486DX4 (3x)           Open             Open             2 & 3

      AM486DX5           Pins 1 & 2          Open              Open
                           closed

                            CPU TYPE SELECTION

      Type            W32           W34            W35           W36

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

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

   SL80486DX2      1 & 2, 3 &      2 & 3          1 & 2         1 & 2
                       4

  AM486DX4 (2x)    1 & 2, 3 &       Open          2 & 3          Open
                       4

  AM486DX4 (3x)    1 & 2, 3 &      2 & 3          2 & 3         1 & 2
                       4

  80486DX4 (2x)    1 & 2, 3 &       Open          2 & 3          Open
                       4

  80486DX4 (3x)    1 & 2, 3 &      2 & 3          2 & 3         1 & 2
                       4

    AM486DX5       1 & 2, 3 &       Open          2 & 3          Open
                       4

  Note: Pins designated should be in the closed position.

  CPU VOLTAGE SELECTION

   Voltage        W1

    3.3v         Open

     5v         Closed

                            BUS SPEED SELECTION

                 Speed                                  W7

                 <= 33MHz                             Open

                  >33 MHz                             Closed

                           DMA CHANNEL SELECTION

         Channel                    W17                      W23

            None                   Open                    Open

               0             Pins 1 & 2 closed        Pins 2 & 3 closed

               5             Pins 2 & 3 closed        Pins 1 & 2 closed

                     SERIAL PORT 2 LOOPBACK SELECTION

           Setting                     W9                    W10

             Normal                  Open                   Open

             Loopback                Closed                 Closed

                          SERIAL PORT 2 SELECTION

     Setting            W8         W11        W12        W13       W14

       RS-232         Open       1 & 2      1 & 2      1 & 2     1 & 2

        RS-485        Closed      2 & 3      2 & 3      2 & 3     2 & 3

  Note: Pins designated should be in the closed position.

                       FLOPPY DRIVE EDOUT SELECTION

                 Setting                                W30

             Left to software                         Open

       Ground to pin 17 on J4, EDOUT to      Pins 1 & 3, 2 & 4 closed
                pin 29 on J4

       Ground to pin 29 on J4, EDOUT to      Pins 1 & 2, 3 & 4 closed
                pin 17 on J4

                       FLOPPY DRIVE HDOUT SELECTION

                 Setting                                W31

             Left to software                         Open

       Ground to pin 27 on J4, HDOUT to      Pins 1 & 3, 2 & 4 closed
                pin 33 on J4

       Ground to pin 33 on J4, HDOUT to      Pins 1 & 2, 3 & 4 closed
                pin 27 on J4

                            BASE I/O SELECTION

               Address                                 W16

                  190H                     Pins 1 & 2, 3 & 4 closed

                   290H                         Pins 1 & 2 closed

                   390H                         Pins 3 & 4 closed

                   390H                               Open

                         VGA CONTROLLER SELECTION

      Setting            W3            W4           W5            W6

        Enabled        Closed      Pins 1 & 2     Closed       Pins 1 & 2
                                     closed                     closed

       Disabled        Open       Pins 2 & 3      Open        Pins 2 & 3
                                     closed                     closed

