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)         

<gopher://bitreich.org/I/th99/m/C-D/35680-1.png>
   

   +------------------------------------------------------------+
   |                        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  |   SL2    |
   |                   |          | card             |          |
   |-------------------+----------+------------------+----------|
   | Serial port       |   CN1    | External memory  |   SL3    |
   |                   |          | card             |          |
   |-------------------+----------+------------------+----------|
   | 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   |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/C-D/Image702.png>
   

   +------------------------------------------------------------+
   |                     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  |   None    |   None    |
   |         |              |    36     |           |           |
   |---------+--------------+-----------+-----------+-----------|
   |  64MB   | (4) 4M x 36  |   None    |   None    |   None    |
   |---------+--------------+-----------+-----------+-----------|
   |  96MB   | (4) 2M x 36  | (4) 2M x  | (4) 2M x  |   None    |
   |         |              |    36     |    36     |           |
   |---------+--------------+-----------+-----------+-----------|
   |  128MB  | (4) 4M x 36  | (4) 4M x  |   None    |   None    |
   |         |              |    36     |           |           |
   |---------+--------------+-----------+-----------+-----------|
   |  128MB  | (4) 8M x 36  |   None    |   None    |   None    |
   |---------+--------------+-----------+-----------+-----------|
   |  128MB  | (4) 2M x 36  | (4) 2M x  | (4) 2M x  | (4) 2M x  |
   |         |              |    36     |    36     |    36     |
   |---------+--------------+-----------+-----------+-----------|
   |  192MB  | (4) 4M x 36  | (4) 4M x  | (4) 4M x  |   None    |
   |         |              |    36     |    36     |           |
   |---------+--------------+-----------+-----------+-----------|
   |  256MB  | (4) 4M x 36  | (4) 4M x  | (4) 4M x  | (4) 4M x  |
   |         |              |    36     |    36     |    36     |
   |---------+--------------+-----------+-----------+-----------|
   |  256MB  | (4) 8M x 36  | (4) 8M x  |   None    |   None    |
   |         |              |    36     |           |           |
   |---------+--------------+-----------+-----------+-----------|
   |  512MB  | (4) 8M x 36  | (4) 8M x  | (4) 8M x  | (4) 8M x  |
   |         |              |    36     |    36     |    36     |
   |------------------------------------------------------------|
   | Note: For maximum memory of 1GB, install 2 memory cards    |
   | with 512MB installed.                                      |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/m/C-D/35680-2.png>
   

   +------------------------------------------------------------+
   |                        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 speed|Clock speed|Multiplier|  J3  |  J4  |  J7  |  J8  |
   |---------+-----------+----------+------+------+------+------|
   |  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.          |
   +------------------------------------------------------------+