TYAN COMPUTER CORPORATION
=========================

   S1441 PENTIUM-VL (Revision 1.1)

   Processor         Pentium                                      
   Processor Speed   60/66MHz                                     
   Chip Set          OPTi                                         
   Max. Onboard DRAM 128MB                                        
   Cache             64/128/256/512/1024/2024KB                   
   BIOS              AMI                                          
   Dimensions        330mm x 218mm                                
   I/O Options       32-bit VESA local bus slots (3)              
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/S-T/31908-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose      | Location | Purpose               | Location |
   |--------------+----------+-----------------------+----------|
   | Turbo LED    |   J15    | 32-bit VESA Local bus | S1 - S3  |
   |              |          | slots                 |          |
   |--------------+----------+-----------------------+----------|
   | Turbo switch |   J16    | Reset switch          |   SW1    |
   |--------------+----------+-----------------------+----------|
   | Power LED &  |   J22    |                       |          |
   | keylock      |          |                       |          |
   |--------------+----------+-----------------------+----------|
   | Speaker      |   JP18   |                       |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J11   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J12   |    Open    |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J13   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J15   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  J17   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | CMOS memory normal operation     |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP2   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |>> | Factory configured - do not      |  JP3   |   Closed   |
   |   | alter                            |        |            |
   |---+----------------------------------+--------+------------|
   |>> | AT back - to - back I/O delay    |  JP10  |   Closed   |
   |   | enabled                          |        |            |
   |---+----------------------------------+--------+------------|
   |   | AT back - to - back I/O delay    |  JP10  |    Open    |
   |   | disabled                         |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (2) 1M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 4M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (2) 2M x 36     |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 1M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 2M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (2) 1M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (2) 2M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       96MB       |    (2) 4M x 36     |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (2) 8M x 36     |    (2) 8M x 36     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (8) 8K x 8   |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (8) 8K x 8   |  (8) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (8) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   512KB    |  (8) 32K x 8  |  (8) 32K x 8  |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   1024KB   | (8) 128K x 8  |     NONE      |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   2024KB   | (8) 128K x 8  | (8) 128K x 8  | (1) 128K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size |JP6| JP19 | JP20 | JP21 |JP22|JP23| JP50 | JP51 |JP77|
   |------+---+------+------+------+----+----+------+------+----|
   | 64KB |1 &| Open | Open | Open |1 & |1 & | Open | Open |Open|
   |      | 2 |      |      |      | 2  | 2  |      |      |    |
   |------+---+------+------+------+----+----+------+------+----|
   |128KB |2 &|Closed| Open | Open |2 & |2 & | Open | Open |Open|
   |      | 3 |      |      |      | 3  | 3  |      |      |    |
   |------+---+------+------+------+----+----+------+------+----|
   |256KB |1 &|Closed|Closed| Open |1 & |1 & | Open | Open |Open|
   |      | 2 |      |      |      | 2  | 2  |      |      |    |
   |------+---+------+------+------+----+----+------+------+----|
   |512KB |2 &|Closed|Closed|Closed|2 & |2 & | Open | Open |Open|
   |      | 3 |      |      |      | 3  | 3  |      |      |    |
   |------+---+------+------+------+----+----+------+------+----|
   |1024KB|1 &|Closed|Closed|Closed|1 & |1 & |Closed| Open |1 & |
   |      | 2 |      |      |      | 2  | 2  |      |      | 2  |
   |------+---+------+------+------+----+----+------+------+----|
   |2024KB|2 &|Closed|Closed|Closed|2 & |2 & |Closed|Closed|2 & |
   |      | 3 |      |      |      | 3  | 3  |      |      | 3  |
   |------------------------------------------------------------|
   |Note:Pins designated should be in the closed position.      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                VESA BUS CLOCK CONFIGURATION                |
   |------------------------------------------------------------|
   |   Speed    |     JP63      |     JP64      |     JP65      |
   |------------+---------------+---------------+---------------|
   |   20MHz    |  pins 2 & 3   |  pins 1 & 2   |  pins 1 & 2   |
   |------------+---------------+---------------+---------------|
   |   25MHz    |  pins 1 & 2   |  pins 2 & 3   |  pins 1 & 2   |
   |------------+---------------+---------------+---------------|
   |   33MHz    |  pins 1 & 2   |  pins 1 & 2   |  pins 2 & 3   |
   |------------+---------------+---------------+---------------|
   |   40MHz    |  pins 2 & 3   |  pins 2 & 3   |  pins 1 & 2   |
   |------------+---------------+---------------+---------------|
   |   50MHz    |  pins 2 & 3   |  pins 1 & 2   |  pins 2 & 3   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   VESA BUS CLOCK SOURCE                    |
   |------------------------------------------------------------|
   |        Source        |  JP4   |        JP5        |  JP7   |
   |----------------------+--------+-------------------+--------|
   | Internal clock from  |  Open  | pins 2 & 3 closed |  Open  |
   |         chip         |        |                   |        |
   |----------------------+--------+-------------------+--------|
   |    External clock    | Closed | pins 1 & 2 closed | Closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 AT BUS CLOCK CONFIGURATION                 |
   |------------------------------------------------------------|
   | CPU speed divided by: |       JP8        |       JP9       |
   |-----------------------+------------------+-----------------|
   |           2           |       Open       |      Open       |
   |-----------------------+------------------+-----------------|
   |           3           |      Closed      |      Open       |
   |-----------------------+------------------+-----------------|
   |           4           |       Open       |     Closed      |
   |-----------------------+------------------+-----------------|
   |           5           |      Closed      |     Closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   | Speed |    JP59    |   JP60   |   JP61   |  JP62  |  JP78  |
   |-------+------------+----------+----------+--------+--------|
   | 60MHz | pins 1 & 2 | pins 2 & | pins 1 & | pins 1 | pins 1 |
   |       |            |    3     |    2     |  & 2   |  & 2   |
   |-------+------------+----------+----------+--------+--------|
   | 66MHz | pins 2 & 3 | pins 1 & | pins 2 & | pins 2 | pins 2 |
   |       |            |    2     |    3     |  & 3   |  & 3   |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |  VESA WAIT STATE/BUS SPEED (ID2 &AMP; ID3) CONFIGURATION   |
   |------------------------------------------------------------|
   |  CPU speed  |  Wait states   |  JP15 (ID3)  |  JP16 (ID2)  |
   |-------------+----------------+--------------+--------------|
   |   GBP 33MHz   | 0 wait states  |     Open     |     Open     |
   |-------------+----------------+--------------+--------------|
   |   > 33MHz   |  1 wait state  |    Closed    |    Closed    |
   +------------------------------------------------------------+