DIGITAL EQUIPMENT CORPORATION
=============================

   CELEBRIS 560, CELEBRIS 575, CELEBRIS 590, CELEBRIS 590 FP,
   CELEBRIS 5100,    CELEBRIS 5100 FP

   Device Type      Mainboard                                     
   Processor        Pentium                                       
   Processor Speed  60/75/90/100MHz                               
   Chip Set         Unidentified                                  
   Video Chip Set   S3                                            
   Maximum Onboard  128MB                                         
   Memory           
   Maximum Video    2MB                                           
   Memory           
   Cache            256/512KB                                     
   BIOS             Unidentified                                  
   Dimensions       330mm x 218mm                                 
   I/O Options      Floppy drive interface, IDE interfaces (2),   
                    parallel port, PS/2 mouse port, serial ports  
                    (2), VGA feature connector, VGA port, riser   
                    slot, cache slot                              
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/C-D/34053-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | VGA port            |   CN1    | IDE interface  |   CN8    |
   |---------------------+----------+----------------+----------|
   | Serial port         |   CN2    | VGA feature    |   CN9    |
   |                     |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | Serial port         |   CN3    | 60MHz power    |   CN10   |
   |                     |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | Parallel port       |   CN4    | 90MHz power    |   CN11   |
   |                     |          | connector      |          |
   |---------------------+----------+----------------+----------|
   | PS/2 mouse port     |   CN5    | Riser slot     |   SL1    |
   |---------------------+----------+----------------+----------|
   | Floppy drive        |   CN6    | Cache slot     |   SL2    |
   | interface           |          |                |          |
   |---------------------+----------+----------------+----------|
   | IDE interface       |   CN7    |                |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   | USER CONFIGURABLE SETTINGS                                 |
   |------------------------------------------------------------|
   | Function                         | Label | Position        |
   |----------------------------------+-------+-----------------|
   | i | CMOS memory normal operation | J22   | Pins 1 & 2      |
   |   |                              |       | closed          |
   |---+------------------------------+-------+-----------------|
   |   | CMOS memory clear            | J22   | Pins 2 & 3      |
   |   |                              |       | closed          |
   |---+------------------------------+-------+-----------------|
   | i | Password normal operation    | J24   | Open            |
   |---+------------------------------+-------+-----------------|
   |   | Password clear               | J24   | Closed          |
   |---+------------------------------+-------+-----------------|
   | i | Flash BIOS normal operation  | J25   | Open            |
   |---+------------------------------+-------+-----------------|
   |   | Flash BIOS recovery mode     | J25   | Closed          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    DRAM CONFIGURATION                      |
   |------------------------------------------------------------|
   | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
   |------+-------------+-------------+------------+------------|
   | 4MB  | (1) 1M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (1) 2M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 2M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 2M x 36 | (1) 2M x 36 |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 4M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 20MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 1M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 2M x  |  (1) 2M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 2M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 4M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 4M x 36 | (1) 4M x 36 |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 8M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 36MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 8M x  |    None    |
   |      |             |             |     36     |            |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 2M x  |    None    |
   |      |             |             |     36     |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                DRAM CONFIGURATION (CON'T)                  |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 8M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 8M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 64MB  | (1) 8M x 36 |  (1) 8M x  |    None    |    None    |
   |       |             |     36     |            |            |
   |-------+-------------+------------+------------+------------|
   | 68MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 1M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 2M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 2M x  |  (1) 2M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 80MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 4M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 4M x  |  (1) 4M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |    None    |
   |       |             |     36     |     36     |            |
   |-------+-------------+------------+------------+------------|
   | 128MB | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   | CACHE CONFIGURATION                                        |
   |------------------------------------------------------------|
   | Size                       | SL2                           |
   |----------------------------+-------------------------------|
   | 256KB                      | 256KB module installed        |
   |----------------------------+-------------------------------|
   | 512KB                      | 512KB module installed        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                VIDEO MEMORY CONFIGURATION                  |
   |------------------------------------------------------------|
   |     Size     |        Bank 0        |        Bank 1        |
   |--------------+----------------------+----------------------|
   |     1MB      |    (2) 256K x 16     |         None         |
   |--------------+----------------------+----------------------|
   |     2MB      |    (2) 256K x 16     |    (2) 256K x 16     |
   |------------------------------------------------------------|
   | Note: Bank 0 is factory installed and is not configurable. |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   | CPU SPEED SELECTION                                        |
   |------------------------------------------------------------|
   | Speed                         | J15                        |
   |-------------------------------+----------------------------|
   | 60MHz                         | Open                       |
   |-------------------------------+----------------------------|
   | 75/90/100MHz                  | Closed                     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTE                 |
   |------------------------------------------------------------|
   | CPU 1 is an upgradeable socket, and CPU2 is the 60MHz      |
   | socket.                                                    |
   +------------------------------------------------------------+