DIGITAL EQUIPMENT CORPORATION

PRIORIS HX MP

Device Type         Mainboard
Processor           Pentium
Processor Speed     75/90/100/120/133/150/166/180/200MHz
Chip Set            Unidentified
Video Chip Set      Cirrus Logic
Maximum Onboard     1GB
Memory
Maximum Video       512KB
Memory
Cache               256/512KB
BIOS                Unidentified
Dimensions          305mm x 244mm
I/O Options         External memory cards (2), 32-bit PCI slots (6), floppy
                    drive interface, parallel port, PS/2 mouse port, serial
                    port, VGA port
I/O Options (CPU)   Cache slots (2), VRM connectors (2)

[Image]

                                CONNECTIONS

  Purpose                  Location    Purpose                  Location

  Chassis fan power           C1       PS/2 mouse port            CN5

  Chassis fan power           C2       Floppy drive               CN6
                                       interface

  Chassis fan power           C3       5v power                    P1

  Chassis fan power           C4       5v power                    P2

  OCP connector               C5       3.3v power                  P3

  SBB connector               C6       CPU slot                   SL1

  DSM connector               C7       External memory card       SL2

  Serial port                CN1       External memory card       SL3

  Serial port                CN2       CPU slot                   SL4

  VGA port                   CN3       32-bit PCI slots         PC1 – PC6

  Parallel port              CN4

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

  »   DSM not installed                        J7             Closed

      DSM installed                            J7              Open

  »   Door lock 1 enabled                      J9             Closed

      Door lock 1 disabled                     J9              Open

  »   Door lock 2 enabled                     J11             Closed

      Door lock 2 disabled                    J11              Open

  »   Recovery mode select normal             J13              Open
      operation

      Recovery mode select recovery           J13             Closed
      mode

  »   Password normal operation               J14              Open

      Password clear                          J14             Closed

  »   On board video enabled                  J32             Closed

      On board video disabled                 J32              Open

  »   VGA IRQ9 disabled                       J33              Open

      VGA IRQ9 enabled                        J33             Closed

  »   Boot block update disabled              J38           Pins 2 & 3
                                                              closed

      Boot block update enabled               J38           Pins 1 & 2
                                                              closed

  »   BIOS upgrade disabled                   J39              Open

      BIOS upgrade enabled                    J39             Closed

[Image]

                            SIMM CONFIGURATION

     Size          Bank 0         Bank 1        Bank 2         Bank 3

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

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

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

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

     128MB       (4) 4M x 36    (4) 4M x 36      None           None

     128MB       (4) 8M x 36       None          None           None

     128MB       (4) 2M x 36    (4) 2M x 36   (4) 2M x 36    (4) 2M x 36

     192MB       (4) 4M x 36    (4) 4M x 36   (4) 4M x 36       None

     256MB       (4) 4M x 36    (4) 4M x 36   (4) 4M x 36    (4) 4M x 36

     256MB       (4) 8M x 36    (4) 8M x 36      None           None

     512MB       (4) 8M x 36    (4) 8M x 36   (4) 8M x 36    (4) 8M x 36

  Note: For maximum memory of 1GB, install 2 memory cards with 512MB
  installed.

[Image]

                                CONNECTIONS

  Purpose                 Location    Purpose                    Location

  Cache slot                SL1       VRM connector               VRM1

  Cache slot                SL2       VRM connector               VRM2

                        USER CONFIGURABLE SETTINGS

                Function                     Label           Position

      APIC enabled                            J10             Closed

      APIC disabled                           J10              Open

                CACHE CONFIGURATION

           Size                    SL1/SL2

          256KB            256KB module installed

          512KB            512KB module installed

  Note: SL1 is for CPU1 & SL2 is for CPU2.

                            CPU SPEED SELECTION

    CPU      Clock    Multiplier      J3        J4        J7        J8
  speed     speed

  75MHz     50MHz        1.5x        Open      Open      Open      Open

  90MHz     60MHz        1.5x        Open      Open      Open      Open

  100MHz    66MHz        1.5x        Open      Open      Open      Open

  120MHz    60MHz         2x         Open     Closed     Open     Closed

  133MHz    66MHz         2x         Open     Closed     Open     Closed

  150MHz    60MHz        2.5x       Closed    Closed    Closed    Closed

  166MHz    66MHz        2.5x       Closed    Closed    Closed    Closed

  180MHz    60MHz         3x        Closed     Open     Closed     Open

  200MHz    66MHz         3x        Closed     Open     Closed     Open

  Note: J3 & J4 are for CPU 1. J7 & J8 are for CPU2.