TMC RESEARCH CORPORATION
========================

   PAT54PV (VER 1.0A, 1.1A)

   Processor         Pentium                                      
   Processor Speed   75/90/100MHz                                 
   Chip Set          OPTI                                         
   Max. Onboard DRAM 128MB                                        
   Cache             256/512KB                                    
   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/32322-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose       | Location  | Purpose           |  Location  |
   |---------------+-----------+-------------------+------------|
   | External      |    J2     | Reset switch      | J6 (pins 9 |
   | battery       |           |                   |   - 19)    |
   |---------------+-----------+-------------------+------------|
   | IDE interface |    J5     | IDE interface LED |  J6 (pins  |
   | LED           |           |                   |  10 - 20)  |
   |---------------+-----------+-------------------+------------|
   | Speaker       | J6 (pins  | Power LED &       |  J6 (pins  |
   |               |  1 - 4)   | keylock           |  11 - 15)  |
   |---------------+-----------+-------------------+------------|
   | Turbo LED     | J6 (pins  | 32-bit VESA local | SL1 - SL3  |
   |               |  8 - 18)  | bus slots         |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 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 monochrome  |  JP7   |    Open     |
   |---+---------------------------------+--------+-------------|
   |   | Monitor type select color       |  JP7   |   Closed    |
   |---+---------------------------------+--------+-------------|
   |>> | Back-to-back I/O delay enabled  |  JP8   |   Closed    |
   |---+---------------------------------+--------+-------------|
   |   | Back-to-back I/O delay disabled |  JP8   |    Open     |
   +------------------------------------------------------------+

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

   +------------------------------------------------------------+
   |                  CPU SPEED CONFIGURATION                   |
   |------------------------------------------------------------|
   |           Speed            |             JP18              |
   |----------------------------+-------------------------------|
   |           75MHz            |       pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |           90MHz            |       pins 3 & 4 closed       |
   |----------------------------+-------------------------------|
   |           100MHz           |   pins 1 & 2, 5 & 6 closed    |
   |------------------------------------------------------------|
   | Note: The location of JP18 is unidentified.                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               VESA CLOCK SPEED CONFIGURATION               |
   |------------------------------------------------------------|
   |  CPU   |  JP4   |  JP6   |  JP9  | JP10  |  JP11  |  JP12  |
   |  Type  |        |        |       |       |        |        |
   |--------+--------+--------+-------+-------+--------+--------|
   | 33MHz  |  Open  |  Open  | 1 & 2 | 2 & 3 |  Open  | Closed |
   |--------+--------+--------+-------+-------+--------+--------|
   | 40MHz  | Closed | Closed | 1 & 2 | 1 & 2 | Closed | Closed |
   |--------+--------+--------+-------+-------+--------+--------|
   | 50MHz  | Closed | Closed | 2 & 3 | 1 & 2 | Closed |  Open  |
   |------------------------------------------------------------|
   | Note: Pins designated should be in the closed position.    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |             BUS CLOCK FREQUENCY CONFIGURATION              |
   |------------------------------------------------------------|
   | ATCLK frequency | VLCLK frequency |    JP2     |    JP3    |
   |-----------------+-----------------+------------+-----------|
   |      8MHz       |      33MHz      |   Closed   |   Open    |
   |-----------------+-----------------+------------+-----------|
   |      8MHz       |      40MHz      |   Closed   |  Closed   |
   |-----------------+-----------------+------------+-----------|
   |      10MHz      |      50MHz      |   Closed   |  Closed   |
   +------------------------------------------------------------+

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