BIOSTAR MICROTECH INTERNATIONAL CORPORATION
===========================================

   MB-8575/90/00URC

   Processor         Pentium                                      
   Processor Speed   75/90/100/120/133MHz                         
   Chip Set          Unidentified                                 
   Max. Onboard DRAM 128MB                                        
   Cache             256/512/1024KB                               
   BIOS              Award                                        
   Dimensions        254mm x 218mm                                
   I/O Options       Green PC connector, IDE interfaces (2)       
   NPU Options       None                                         

<gopher://bitreich.org/I/th99/m/A-B/32859-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose            | Location  | Purpose       | Location  |
   |--------------------+-----------+---------------+-----------|
   | IDE interface 2    |    CN2    | Turbo switch  | JP15 pins |
   |                    |           |               |  14 - 16  |
   |--------------------+-----------+---------------+-----------|
   | IDE interface 1    |    CN1    | +5v ground    | JP15 pins |
   |                    |           |               |  17 - 18  |
   |--------------------+-----------+---------------+-----------|
   | Speaker            | JP15 pins | Green PC      |   JP16    |
   |                    |   1 - 4   | connector     |           |
   |--------------------+-----------+---------------+-----------|
   | Power LED &        | JP15 pins | IDE interface |   JP18    |
   | keylock            |   5 - 9   | LED           |           |
   |--------------------+-----------+---------------+-----------|
   | Turbo LED          | JP15 pins | Chassis fan   |   JP19    |
   |                    |  10 - 11  | power         |           |
   |--------------------+-----------+---------------+-----------|
   | Reset switch       | JP15 pins | 32-bit PCI    | PC1 - PC3 |
   |                    |  12 - 13  | slots         |           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Jumper |  Position   |
   |-------------------------------------+--------+-------------|
   |>> | CMOS memory normal operation    |  JP3   |    Open     |
   |---+---------------------------------+--------+-------------|
   |   | CMOS memory clear               |  JP3   |   Closed    |
   |---+---------------------------------+--------+-------------|
   |>> | BIOS type select 5v flash BIOS  |  JP17  | pins 1 & 2  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |   | BIOS type select 12v flash BIOS |  JP17  | pins 2 & 3  |
   |   |                                 |        |   closed    |
   |---+---------------------------------+--------+-------------|
   |   | BIOS type select EPROM          |  JP17  |    Open     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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) 1M 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      |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   512KB    |  (4) 64K x 8  |  (4) 64K x 8  |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |    1MB     | (4) 128K x 8  | (4) 128K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size        |        JP11        |       JP12        |
   |-------------------+--------------------+-------------------|
   |       256KB       |        Open        |       Open        |
   |-------------------+--------------------+-------------------|
   |       512KB       |       Closed       |       Open        |
   |-------------------+--------------------+-------------------|
   |        1MB        |       Closed       |      Closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |  Speed  |               JP9               | JP13  |  JP14  |
   |---------+---------------------------------+-------+--------|
   |  75MHz  |        pins 1 & 2 closed        | Open  |  Open  |
   |---------+---------------------------------+-------+--------|
   |  90MHz  |        pins 3 & 4 closed        | Open  |  Open  |
   |---------+---------------------------------+-------+--------|
   | 100MHz  |    pins 1 & 2, 5 & 6 closed     | Open  |  Open  |
   |---------+---------------------------------+-------+--------|
   | 120MHz  |        pins 3 & 4 closed        | Open  | Closed |
   |---------+---------------------------------+-------+--------|
   | 133MHz  | pins 1 & 2, 3 & 4 ,5 & 6 closed | Open  | Closed |
   |------------------------------------------------------------|
   | Note: JP13 is located on revision 2 and above.             |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CPU VOLTAGE CONFIGURATION                  |
   |------------------------------------------------------------|
   |          Voltage           |             JP20              |
   |----------------------------+-------------------------------|
   |            3.5v            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |           3.45v            |       pins 2 & 3 closed       |
   +------------------------------------------------------------+