INDUSTRIAL COMPUTER SOURCE

SB21064

Processor                  Alpha
Processor Speed            275/300MHz
Chip Set                   DEC
Video Chip Set             None
Maximum Onboard Memory     128MB
Maximum Video Memory       None
Cache                      512/2048KB
BIOS                       Unidentified
Dimensions                 Unidentified
I/O Options                Floppy drive interface, IDE interface, SCSI-2
                           interface, parallel port, PS/2 mouse interface,
                           serial ports (2), cache slots (2)
NPU Options                None

[Image]

                                CONNECTIONS

  Purpose                Location      Purpose                 Location

  SCSI-2 interface          J1         Chassis fan power         J14

  Speaker, keyboard,        J3         IDE interface LED         J15
  keylock ,reset

  IDE interface             J4         PS/2 mouse                J19
                                       interface

  Floppy drive              J5         Serial port 1              P1
  interface

  Serial port 2             J6         Cache slots            SL1 & SL2

  Parallel port             J11

                        USER CONFIGURABLE SETTINGS

              Function                    Label            Position

      SCSI termination enabled             J10               Open

      SCSI termination disabled            J10              Closed

  »   Flash BIOS memory update             J16         Pins 2 & 3 closed
      enabled

      Flash BIOS memory update             J16         Pins 1 & 2 closed
      disabled

      SROM debugger                    J17/pins 23 &         Open
                                            24

      Flash BIOS first image booted    J17/pins 25 &         Open
                                            26

      Flash BIOS firmware image        J17/pins 25 &        Closed
      booted                                26

      SROM test port                       J18           Unidentified

      SCSI controller enabled              J20         Pins 1 & 2 closed

      SCSI controller disabled             J20         Pins 2 & 3 closed

  »   Factory configured - do not          JP1           Unidentified
      alter

       SIMM CONFIGURATION

      Size          Bank 0

      8MB         (2) 1M x 36

      16MB        (2) 2M x 36

      32MB        (2) 4M x 36

      64MB        (2) 8M x 36

     128MB       (2) 16M x 36

                            CACHE CONFIGURATION

  Note: The sizes of the cache modules and orientation are unidentified.

                        CACHE JUMPER CONFIGURATION

    Size      J13/pins 1 &    J13/pins 3 &   J13/pins 5 &    J13/pins 7 &
                   2               4              6               8

    None          Open           Open            Open           Open

   512KB          Open           Open            Open           Open

    2MB          Closed         Closed           Open           Open

                    CACHE JUMPER CONFIGURATION (CON’T)

      Size        J17/pins 11 & 12    J17/pins 13 /&    J17/pins 15 & 16
                                            14

      None            Closed              Closed             Closed

     512KB             Open               Closed             Closed

      2MB              Open                Open              Closed

                    CACHE JUMPER CONFIGURATION (CON’T)

      Size        J17/pins 17 & 18   J17/pins 19 & 20   J17/pins 21 & 22

      512KB            Closed              Open               Open

       2MB             Closed              Open               Open

                            CPU SPEED SELECTION

     Speed         J17/pins 1    J17/pins 3     J17/pins 5   J17/pins 7 &
                      & 2           & 4            & 6            8

     275MHz         Closed          Open          Open           Open

     300MHz         Closed          Open          Open           Open