
INFORMTECH INTERNATIONAL, INC.

INTEL PCI

Processor         80486SX/80487SX/80486DX/Pentium Overdrive
Processor Speed   25/33MHz
Chip Set          Intel
Max. Onboard DRAM 64MB
Cache             64/128/256/512KB
BIOS              AMI
Dimensions        330mm x 218mm
I/O Options       32-bit PCI bus slots (3)
NPU Options       None

[Image]

                                CONNECTIONS

  Purpose                   Location    Purpose                  Location

  SCSI bus LED                CN1       32-bit PCI bus slot       PCI2

  Turbo switch                 J4       32-bit PCI bus slot       PCI3

  Turbo LED                    J5       Speaker                    SPK

  Power LED & keylock        KLOCK      Reset switch               RST

  32-bit PCI bus slot         PCI1

                        USER CONFIGURABLE SETTINGS

                Function                     Jumper          Position

     CMOS memory normal operation            CMOS            Closed

      CMOS memory clear                       CMOS             Open

     Factory configured - do not              J9             Closed
      alter

     External cache installed                J17           pins 2 & 3
                                                              closed

      External cache not installed            J17           pins 1 & 2
                                                              closed

     SCSI terminator power source            J24             Closed
      from the system

      SCSI terminator power source            J24              Open
      from peripheral device

     Flash EPROM 27C020 or 27C010            JK3           pins 1 & 2
      installed                                               closed

      Flash EPROM 27C512 installed            JK3           pins 2 & 3
                                                              closed

  Note:The location of CMOS jumper is unidentified.

                DRAM CONFIGURATION

      Size            Bank 0           Bank 1

       2MB        (2) 256K x 36         NONE

       4MB        (2) 256K x 36    (2) 256K x 36

       4MB        (2) 512K x 36         NONE

       6MB        (2) 256K x 36    (2) 512K x 36

       6MB        (2) 512K x 36    (2) 256K x 36

       8MB        (2) 512K x 36    (2) 512K x 36

       8MB         (2) 1M x 36          NONE

      10MB        (2) 256K x 36     (2) 1M x 36

      10MB         (2) 1M x 36     (2) 256K x 36

      12MB        (2) 512K x 36     (2) 1M x 36

      12MB         (2) 1M x 36     (2) 512K x 36

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

      16MB         (2) 2M x 36          NONE

      18MB        (2) 256K x 36     (2) 2M x 36

      18MB         (2) 2M x 36     (2) 256K x 36

      20MB        (2) 512K x 36     (2) 2M x 36

      20MB         (2) 2M x 36     (2) 512K x 36

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

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

      32MB         (2) 2M x 36      (2) 2M x 36

      32MB         (2) 4M x 36          NONE

      34MB        (2) 256K x 36     (2) 4M x 36

      34MB         (2) 4M x 36     (2) 256K x 36

      36MB        (2) 512K x 36     (2) 4M x 36

      36MB         (2) 4M x 36     (2) 512K x 36

      40MB         (2) 1M x 36      (2) 4M x 36

      40MB         (2) 4M x 36      (2) 1M x 36

      48MB         (2) 2M x 36      (2) 4M x 36

      48MB         (2) 4M x 36      (2) 2M x 36

      64MB         (2) 4M x 36      (2) 4M x 36

                      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

     512KB       (4) 128K x 8        None        (1) 32K x 8

                        CACHE JUMPER CONFIGURATION

  Size       J6       J7        J8        J11         J18         J19

  64KB      Open     Open      Open     pins 2 &    pins 1 &    pins 1 &
                                        3 closed    2 closed    2 closed

  128KB    Closed    Open      Open     pins 1 &    pins 2 &    pins 1 &
                                        2 closed    3 closed    2 closed

  256KB    Closed   Closed     Open     pins 1 &    pins 1 &    pins 2 &
                                        2 closed    2 closed    3 closed

  512KB    Closed   Closed    Closed    pins 1 &    pins 2 &    pins 2 &
                                        2 closed    3 closed    3 closed

                     . CPU TYPE CONFIGURATION (CONT.)

        Type               J106              J107              J109

   SL-enhanced CPU        Closed            Closed          pins 2 & 3
                                                              closed

     Normal CPU             N/A              N/A            pins 1 & 2
                                                              closed

                       . CPU TYPE CONFIGURATION (CONT.)

    Type        KC1     KC2      KC3      KC4      KC5      JF      J20   J21

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

   80487SX     Open    Closed   Closed    Open    Closed   Closed   2 &   1 &
                                                                    3     2

   80486DX     Closed   Open    Closed    Open    Closed   Closed   2 &   1 &
                                                                    3     2

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

  Note:Pins designated should be in the closed position.

                          CPU SPEED CONFIGURATION

      Speed             JP3                J12                 J13

      25MHz            Closed           pins 1 & 2      pins 2 & 3 closed
                                          closed

      33MHz            Closed           pins 1 & 2      pins 1 & 2 closed
                                          closed

           VESA WAIT STATE/BUS SPEED CONFIGURATION

        Speed            Wait states              J14

        33MHz          0 wait states      pins 2 & 3 closed

       > 33MHz           1 wait state      pins 1 & 2 closed

                    PCI SLAVE/MASTERSLAVE CONFIGURATION

    Slot         Type         J102        J103        J104        J105

     1          Slave         N/A         N/A       Pins 1 &     Pins 1 &
                                                       2            2

     1          Master        N/A         N/A       Pins 2 &     Pins 2 &
                                                       3            3

     2          Slave         N/A         N/A       Pins 2 &     Pins 2 &
                                                       3            3

     2          Master        N/A         N/A       Pins 1 &     Pins 1 &
                                                       2            2

     3          Slave       Pins 2 &    Pins 2 &      N/A          N/A
                               3           3

     3          Master      Pins 1 &    Pins 1 &      N/A          N/A
                               2           2

    SCSI        Slave       Pins 1 &    Pins 1 &      N/A          N/A
                               2           2

    SCSI        Master      Pins 2 &    Pins 2 &      N/A          N/A
                               3           3

  Note:Pins designated should be in the closed position.

                         PCI IRQ INTERRUPT SELECT

     PCI1        J37       J36       J39       J40       J42       J43

  PCI-1-INTA    pins 1    pins 1    pins 1    pins 1    pins 1   pins 1 &
                 & 2       & 2       & 2       & 2       & 2        2

  PCI-2-INTA    pins 2    pins 1    pins 2    pins 2    pins 2   pins 2 &
                 & 3       & 2       & 3       & 3       & 3        3

  PCI-2-INTA    pins 2    pins 1    pins 2    pins 2    pins 2   pins 2 &
                 & 3       & 2       & 4       & 4       & 4        4

  Note:Pins designated should be in the closed position.

  For every INTA signal, only one of IRQ5-IRQ15 should be connected.

                        ON BOARD SCSI CONFIGURATION

           SCSI                      J2                      J3

         Enabled                   Closed                  Closed

         Disabled                   Open                    Open

  Note:When the on board SCSI is disconnected from the power, the power
  cost should go down.

