ATC/UNITRON COMPUTERS & COMPUTER PARTS
======================================

   U 6992 (SQ599)

   Processor    Pentium                                           
   Processor    75/90/100/120/133/150MHz                          
   Speed        
   Chip Set     SIS                                               
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512/1024KB                                    
   BIOS         Award                                             
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit PCI slots (3), floppy drive interface,     
                green PC connector, IDE interfaces (2), parallel  
                port, PS/2 mouse interface, serial ports (2), VGA 
                feature connector, VGA interface, IR connector,   
                IRDA connector                                    
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/A-B/33234-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose           | Location | Purpose          | Location |
   |-------------------+----------+------------------+----------|
   | VGA interface     |    J3    | Green PC         |   J13    |
   |                   |          | connector        |          |
   |-------------------+----------+------------------+----------|
   | Parallel port     |    J4    | Power LED &      |   J16    |
   |                   |          | keylock          |          |
   |-------------------+----------+------------------+----------|
   | Serial port 1     |    J5    | Green PC LED     |   J17    |
   |-------------------+----------+------------------+----------|
   | Serial port 2     |    J6    | IDE interface    |   J18    |
   |                   |          | LED              |          |
   |-------------------+----------+------------------+----------|
   | VGA feature       |    J7    | Turbo LED        |   J20    |
   | connector         |          |                  |          |
   |-------------------+----------+------------------+----------|
   | IDE interface 2   |    J8    | Speaker          |   J21    |
   |-------------------+----------+------------------+----------|
   | IDE interface 1   |    J9    | IRDA connector   |   J22    |
   |-------------------+----------+------------------+----------|
   | Floppy drive      |   J10    | PS/2 mouse       |   J23    |
   | interface         |          | interface        |          |
   |-------------------+----------+------------------+----------|
   | Reset switch      |   J11    | External battery |   JP20   |
   |-------------------+----------+------------------+----------|
   | IR remote         |   J12    | 32-bit PCI slots |  PC1 -   |
   | connector         |          |                  |   PC3    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |   | Monitor type select color        |  JP1   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP1   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP19  | Pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP19  | Pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP24  |    N/A     |
   |   | alter                            |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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    |
   |------+-------------+-------------+------------+------------|
   | 16MB | (1) 4M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 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    |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 2M x  |  (1) 2M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 24MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 8M x 36 |    None     |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 32MB | (1) 4M x 36 | (1) 4M x 36 |    None    |    None    |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |  (1) 1M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 40MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 2M x  |  (1) 2M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
   |      |             |             |     36     |     36     |
   |------+-------------+-------------+------------+------------|
   | 64MB | (1) 8M x 36 | (1) 8M x 36 |    None    |    None    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DRAM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 1M x  |  (1) 1M x  |
   |       |             |     36     |     36     |     36     |
   |-------+-------------+------------+------------+------------|
   | 72MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     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     |
   |-------+-------------+------------+------------+------------|
   | 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     |
   |-------+-------------+------------+------------+------------|
   | 128MB | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
   |       |             |     36     |     36     |     36     |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |        TAG         |
   |------------------+--------------------+--------------------|
   |      256KB       |    (8) 32K x 8     |    (1) 32K x 8     |
   |------------------+--------------------+--------------------|
   |      512KB       |    (8) 64K x 8     |    (1) 32K x 8     |
   |------------------+--------------------+--------------------|
   |       1MB        |    (8) 128K x 8    |    (1) 32K x 8     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |        JP21        |        JP22        |
   |------------------+--------------------+--------------------|
   |      256KB       | Pins 1 & 2 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |      512KB       | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
   |------------------+--------------------+--------------------|
   |       1MB        | Pins 2 & 3 closed  | Pins 2 & 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |   Speed    |   J14    |    J15     |   JP16    |   JP17    |
   |------------+----------+------------+-----------+-----------|
   |   75MHz    |   Open   |    Open    |   Open    |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   90MHz    |   Open   |    Open    |  Closed   |   Open    |
   |------------+----------+------------+-----------+-----------|
   |   100MHz   |   Open   |    Open    |  Closed   |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   120MHz   |   Open   |   Closed   |  Closed   |   Open    |
   |------------+----------+------------+-----------+-----------|
   |   133MHz   |   Open   |   Closed   |  Closed   |  Closed   |
   |------------+----------+------------+-----------+-----------|
   |   150MHz   |   Open   |   Closed   |   Open    |   Open    |
   +------------------------------------------------------------+