MODULAR CIRCUIT TECHNOLOGY
==========================

   MCT-M586-90

   Processor    Pentium                                           
   Processor    75/90/100MHz                                      
   Speed        
   Chip Set     OPTI                                              
   Max. Onboard 128MB                                             
   DRAM         
   Cache        256/512KB                                         
   BIOS         AMI                                               
   Dimensions   330mm x 218mm                                     
   I/O Options  32-bit VESA local bus slots (2), 32-bit PCI slots 
                (4)                                               
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/M-O/32473-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose          | Location  | Purpose         | Location  |
   |------------------+-----------+-----------------+-----------|
   | External battery |    J2     | IDE interface   |  J6 pins  |
   |                  |           | LED             |  10 & 20  |
   |------------------+-----------+-----------------+-----------|
   | IDE interface    |    J5     | Power LED &     |  J6 pins  |
   | LED              |           | keylock         |  11 - 15  |
   |------------------+-----------+-----------------+-----------|
   | Speaker          | J6 pins 1 | 32-bit PCI      | PC1 - PC4 |
   |                  |    - 4    | slots           |           |
   |------------------+-----------+-----------------+-----------|
   | Turbo LED        | J6 pins 8 | 32-bit VESA     | SL1 & SL2 |
   |                  |   & 18    | local bus slots |           |
   |------------------+-----------+-----------------+-----------|
   | Reset switch     | J6 pins 9 |                 |           |
   |                  |   & 19    |                 |           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |               Function               | Jumper |  Position  |
   |--------------------------------------+--------+------------|
   |>> | Battery type select internal     |  JP1   | pins 2 & 3 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |   | Battery type select external     |  JP1   |    Open    |
   |---+----------------------------------+--------+------------|
   |   | CMOS memory clear                |  JP1   | pins 1 & 2 |
   |   |                                  |        |   closed   |
   |---+----------------------------------+--------+------------|
   |>> | Monitor type select color        |  JP2   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Monitor type select monochrome   |  JP2   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | Back to back I/O delay enabled   |  JP3   |   Closed   |
   |---+----------------------------------+--------+------------|
   |   | Back to back I/O delay disabled  |  JP3   |    Open    |
   |---+----------------------------------+--------+------------|
   |>> | LDEV# sample select end of first |  JP4   |    Open    |
   |   | T2                               |        |            |
   |---+----------------------------------+--------+------------|
   |   | LDEV# sample select end of       |  JP4   |   Closed   |
   |   | second T2                        |        |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DRAM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       2MB        |   (2) 256K x 36    |        NONE        |
   |------------------+--------------------+--------------------|
   |       4MB        |   (2) 512K x 36    |        NONE        |
   |------------------+--------------------+--------------------|
   |       6MB        |   (2) 256K x 36    |   (2) 512K x 36    |
   |------------------+--------------------+--------------------|
   |       8MB        |    (2) 1M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       8MB        |   (2) 512K x 36    |   (2) 512K x 36    |
   |------------------+--------------------+--------------------|
   |       10MB       |   (2) 256K x 36    |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       12MB       |   (2) 512K x 36    |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 1M x 36     |    (2) 1M x 36     |
   |------------------+--------------------+--------------------|
   |       16MB       |    (2) 2M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       18MB       |   (2) 256K x 36    |    (2) 2M x 36     |
   |------------------+--------------------+--------------------|
   |       20MB       |   (2) 512K 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     |
   |------------------+--------------------+--------------------|
   |       34MB       |   (2) 256K x 36    |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       36MB       |   (2) 512K x 36    |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (2) 1M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (2) 2M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 4M x 36     |    (2) 4M x 36     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (2) 8M x 36     |        NONE        |
   |------------------+--------------------+--------------------|
   |       66MB       |   (2) 256K x 36    |    (2) 8M x 36     |
   |------------------+--------------------+--------------------|
   |       68MB       |   (2) 512K x 36    |    (2) 8M 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    |  (8) 32K x 8  |     NONE      |  (1) 32K x 8  |
   |------------+---------------+---------------+---------------|
   |   512KB    |  (8) 32K x 8  |  (8) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                CACHE RESISTOR CONFIGURATION                |
   |------------------------------------------------------------|
   |       Size       |       RA256        |       RA512        |
   |------------------+--------------------+--------------------|
   |      256KB       |     Installed      |   Not installed    |
   |------------------+--------------------+--------------------|
   |      512KB       |   Not installed    |     Installed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |           Speed            |              JP9              |
   |----------------------------+-------------------------------|
   |           75MHz            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |           90MHz            |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |           100MHz           |   pins 1 & 2, 5 & 6 closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               VESA WAIT STATE CONFIGURATION                |
   |------------------------------------------------------------|
   |          Wait states          |            JP5             |
   |-------------------------------+----------------------------|
   |         0 wait states         |            Open            |
   |-------------------------------+----------------------------|
   |         1 wait state          |           Closed           |
   +------------------------------------------------------------+