
TECHMEDIA COMPUTER SYSTEMS CORPORATION

TMB-I430VX-ATX

Processor           CX M1/AM K5/Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Intel
Video Chip Set      S3
Maximum Onboard     128MB (EDO supported)
Memory
Maximum Video       2MB
Memory
Cache               256/512KB
BIOS                Award
Dimensions          280mm x 224mm
I/O Options         32-bit PCI slots (3), floppy drive interface, green PC
                    connector, IDE interfaces (2), parallel port, PS/2
                    mouse port, PS/2 mouse interface, serial ports (2), VGA
                    port, cache slot, IR connector, USB connector, ATX
                    power connector
NPU Options         None

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  ATX power supply           ATX       Chassis fan power          JFAN

  IDE interface LED           C1       Soft off power supply     JPATX1

  Green PC connector          C2       IDE interface 1           JHDD1

  Reset switch                C3       IDE interface 2           JHDD2

  Speaker                     C4       IR connector              JP17A

  Power LED & keylock         C5       PS/2 mouse interface       JM1

  Floppy drive interface     CN2A      PS/2 mouse port            MS1

  Serial port 1              CN3A      VGA port                    O4

  Serial port 2              CN4A      32-bit PCI slots         PC1  PC3

  Parallel port              CN6A      Cache slot                 SL1

  Green PC LED                J4       USB connector              USB1

                        USER CONFIGURABLE SETTINGS

               Function                    Label           Position

     Factory configured - do not           J2           Unidentified
      alter

     Factory configured - do not           J14          Unidentified
      alter

     Factory configured - do not           J15          Unidentified
      alter

     Factory configured - do not           J18          Unidentified
      alter

     Factory configured - do not           J1V          Unidentified
      alter

     Factory configured - do not           J2V          Unidentified
      alter

     Factory configured - do not          JP8A          Unidentified
      alter

     Factory configured - do not          JP9A          Unidentified
      alter

     Factory configured - do not          JP14A         Unidentified
      alter

     Factory configured - do not          JP15A         Unidentified
      alter

     Factory configured - do not          JP16A         Unidentified
      alter

     CMOS memory normal operation         JRTC1             Open

      CMOS memory clear                    JRTC1            Closed

                         DIMM/DRAM CONFIGURATION

     Size         Bank 0         Bank 1         Bank 2        Bank 3

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

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

     16MB          None           None       (1) 2M x 64       None

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

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

     24MB       (2) 2M x 36       None           None       (1) 1M x 64

     32MB       (2) 4M x 36       None           None          None

     32MB          None           None       (1) 4M x 64       None

     32MB          None           None       (1) 2M x 64    (1) 2M x 64

     32MB       (2) 2M x 36   (2) 2M x 36        None          None

     40MB       (2) 1M x 36   (2) 4M x 36        None          None

     40MB       (2) 4M x 36       None           None       (1) 1M x 64

                      DIMM/DRAM CONFIGURATION (CONT)

     Size          Bank 0         Bank 1         Bank 2         Bank 3

     48MB       (2) 2M x 36    (2) 4M x 36        None           None

     48MB       (2) 2M x 36        None       (1) 4M x 64        None

     64MB       (2) 8M x 36        None           None           None

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

     64MB       (2) 4M x 36    (2) 4M x 36        None           None

     64MB           None           None       (1) 4M x 64    (1) 4M x 64

     72MB       (2) 8M x 36    (2) 1M x 36        None           None

     72MB       (2) 8M x 36        None           None       (1) 1M x 64

     80MB       (2) 2M x 36        None           None       (1) 8M x 64

     80MB       (2) 8M x 36    (2) 2M x 36        None           None

     80MB       (2) 8M x 36        None           None       (1) 2M x 64

     96MB       (2) 8M x 36    (2) 4M x 36        None           None

     96MB       (2) 4M x 36        None           None       (1) 8M x 64

     96MB       (2) 8M x 36        None           None       (1) 4M x 64

     128MB      (2) 8M x 36    (2) 8M x 36        None           None

  Note: Board accepts EDO memory. Banks 0 & 1, 2 & 3 are interchangeable.

                        DIMM VOLTAGE CONFIGURATION

     Voltage              J11               J12                J13

       3.3v            Pins 1 & 2        Pins 1 & 2         Pins 1 & 2
                        closed             closed             closed

        5v             Pins 3 & 4        Pins 3 & 4         Pins 3 & 4
                        closed             closed             closed

                            CACHE CONFIGURATION

          Size                   Bank 0                     SL1

        256KB (A)             (2) 32K x 32             Not installed

        256KB (B)             (2) 32K x 32        256KB module installed

          512KB               (2) 64K x 32             Not installed

  Note: The location of bank 0 is unidentified.

                  CACHE JUMPER CONFIGURATION

        Size                 J14K                 J15K

      256KB (A)        Pins 1 & 2 closed   Pins 2 & 3 closed

      256KB (B)        Pins 2 & 3 closed   Pins 2 & 3 closed

        512KB          Pins 2 & 3 closed   Pins 1 & 2 closed

            VIDEO MEMORY CONFIGURATION

      Size            Bank 0           Bank 1

       1MB        (2) 256K x 16         None

       2MB        (2) 256K x 16    (2) 256K x 16

                        CPU SPEED SELECTION (CYRIX)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

  120MHz     50MHz        1.5x         Off      Off       On        Off

  150MHz     60MHz        1.5x         On        On       Off       Off

  166MHz     66MHz        1.5x         On       Off       Off       Off

                    CPU SPEED SELECTION (CYRIX, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

  120MHz     50MHz         2x          Off       On       On        Off

  150MHz     60MHz         2x          Off       On       On        Off

  166MHz     66MHz         2x          Off       On       On        Off

                         CPU SPEED SELECTION (AMD)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   75MHz     50MHz        1.5x         Off      Off       On        Off

   90MHz     60MHz        1.5x         On        On       Off       Off

  100MHz     66MHz        1.5x         On       Off       Off       Off

                     CPU SPEED SELECTION (AMD, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

   75MHz     50MHz        1.5x         On       Off       On        Off

   90MHz     60MHz        1.5x         On       Off       On        Off

  100MHz     66MHz        1.5x         On       Off       On        Off

                        CPU SPEED SELECTION (INTEL)

    CPU       Clock    Multiplier     SW1/1    SW1/2     SW1/3     SW1/4
   speed     speed

   75MHz     50MHz        1.5x         Off      Off       On        Off

   90MHz     60MHz        1.5x         On        On       Off       Off

  100MHz     66MHz        1.5x         On       Off       Off       Off

  120MHz     60MHz         2x          On        On       Off       Off

  133MHz     66MHz         2x          On       Off       Off       Off

  150MHz     60MHz        2.5x         On        On       Off       Off

  166MHz     66MHz        2.5x         On       Off       Off       Off

  180MHz     60MHz         3x          On        On       Off       Off

  200MHz     66MHz         3x          On       Off       Off       Off

                    CPU SPEED SELECTION (INTEL, CONT)

    CPU       Clock    Multiplier     SW1/5    SW1/6     SW1/7     SW1/8
   speed     speed

   75MHz     50MHz        1.5x         On       Off       On        Off

   90MHz     60MHz        1.5x         On       Off       On        Off

  100MHz     66MHz        1.5x         On       Off       On        Off

  120MHz     60MHz         2x          Off       On       On        Off

  133MHz     66MHz         2x          Off       On       On        Off

  150MHz     60MHz        2.5x         Off       On       Off       On

  166MHz     66MHz        2.5x         Off       On       Off       On

  180MHz     60MHz         3x          On       Off       Off       On

  200MHz     66MHz         3x          On       Off       Off       On

                           CPU VOLTAGE SELECTION

    Voltage        V core         J16            J17           JB3P1

      3v            2.8v         Closed        Closed           Open

     3.3v           3.3v          Open          Open        1 & 2, 3 & 3,
                                                            5 & 6, 7 & 8

