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       # TMC RESEARCH CORPORATION
       
          PAT34PV
       
          Processor    80386DX/CX486DLC/80486SX/80487SX/80486DX/ODP486SX 
                                                                         
                       80486DX2/ODP586SX                                 
          Processor    25/33/40/50(internal)/50/66(internal)MHz          
          Speed        
          Chip Set     OPTI                                              
          Max. Onboard 32MB                                              
          DRAM         
          Cache        64/128/256KB                                      
          BIOS         AMI                                               
          Dimensions   235mm x 220mm                                     
          I/O Options  None                                              
          NPU Options  80387                                             
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Funcation    | Location  | Purpose           |  Location   |
          |--------------+-----------+-------------------+-------------|
          | External     |    J1     | Reset switch      | J5/pins 9 & |
          | battery      |           |                   |     19      |
          |--------------+-----------+-------------------+-------------|
          | Speaker      | J5/pins 1 | IDE interface LED | J5/pins 10  |
          |              |    - 4    |                   |    & 20     |
          |--------------+-----------+-------------------+-------------|
          | Turbo switch | J5/pins 7 | Power LED &       | J5/pins 11  |
          |              |   & 17    | keylock           |    - 15     |
          |--------------+-----------+-------------------+-------------|
          | Turbo LED    | J5/pins 8 | IDE interface LED |     J6      |
          |              |   & 18    |                   |             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function              | Location |  Setting   |
          |------------------------------------+----------+------------|
          | » | Monitor type select color      |   JP1    |   closed   |
          |---+--------------------------------+----------+------------|
          |   | Monitor type select monochrome |   JP1    |    open    |
          |---+--------------------------------+----------+------------|
          | » | CMOS memory normal (internal   |   JP2    | pins 2 & 3 |
          |   | battery)                       |          |   closed   |
          |---+--------------------------------+----------+------------|
          |   | CMOS memory normal (external   |   JP2    |    open    |
          |   | battery)                       |          |            |
          |---+--------------------------------+----------+------------|
          |   | CMOS memory clear              |   JP2    | pins 1 & 2 |
          |   |                                |          |   closed   |
          |---+--------------------------------+----------+------------|
          | » | Factory configured - do not    |   JP3    |    N/A     |
          |   | alter                          |          |            |
          |---+--------------------------------+----------+------------|
          | » | VESA bus speed select £ 33MHz  |   JP4    |    open    |
          |---+--------------------------------+----------+------------|
          |   | VESA bus speed select > 33MHz  |   JP4    |   closed   |
          |---+--------------------------------+----------+------------|
          | » | VESA bus wait states select 0  |   JP5    |    open    |
          |   | (CPU £ 33MHz)                  |          |            |
          |---+--------------------------------+----------+------------|
          |   | VESA bus wait state select 1   |   JP5    |   closed   |
          |   | (CPU > 33MHz)                  |          |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       1MB        |    (4) 256K x 9    |        NONE        |
          |------------------+--------------------+--------------------|
          |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
          |------------------+--------------------+--------------------|
          |       4MB        |     (4) 1M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       5MB        |    (4) 256K x 9    |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
          |------------------+--------------------+--------------------|
          |       16MB       |     (4) 4M x 9     |        NONE        |
          |------------------+--------------------+--------------------|
          |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
          |------------------+--------------------+--------------------|
          |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |     Cache     |   Location    |   TAG(U39)    |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (8) 8K x 8   |  Banks 0 & 1  |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |    Bank 0     |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (8) 32K x 8  |  Banks 0 & 1  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |            CACHE RESISTOR NETWORK CONFIGURATION            |
          |------------------------------------------------------------|
          |     Size     |      RND      |     RNE      |     RNF      |
          |--------------+---------------+--------------+--------------|
          |     64KB     |    closed     |     open     |     open     |
          |--------------+---------------+--------------+--------------|
          |    128KB     |     open      |    closed    |     open     |
          |--------------+---------------+--------------+--------------|
          |    256KB     |     open      |     open     |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU CONFIGURATION                      |
          |------------------------------------------------------------|
          |   CPU    |   RNA   |   RNB   |   RNC   |  RN386  |  RN486  |
          |----------+---------+---------+---------+---------+---------|
          | 80486DX2 | closed  |  open   |  open   |  open   | closed  |
          |----------+---------+---------+---------+---------+---------|
          | ODP487SX |  open   | closed  | closed  |  open   | closed  |
          |----------+---------+---------+---------+---------+---------|
          | 80486DX  | closed  |  open   |  open   |  open   | closed  |
          |----------+---------+---------+---------+---------+---------|
          | 80487SX  |  open   | closed  |  open   |  open   | closed  |
          |----------+---------+---------+---------+---------+---------|
          | 80486SX  |  open   |  open   |  open   |  open   | closed  |
          |----------+---------+---------+---------+---------+---------|
          | CX486DLC |   N/A   |   N/A   |   N/A   | closed  |  open   |
          |----------+---------+---------+---------+---------+---------|
          | 80386DX  |   N/A   |   N/A   |   N/A   | closed  |  open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          CPU SPEED RESISTOR NETWORK CONFIGURATION          |
          |------------------------------------------------------------|
          |     Speed     |  RNG1  |  RNG2  |  RNG3  |  RNG4  |  RNG5  |
          |---------------+--------+--------+--------+--------+--------|
          |66(internal)MHz|  N/A   |  N/A   |  open  | closed |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |     50MHz     |  N/A   |  N/A   |  open  |  open  | closed |
          |---------------+--------+--------+--------+--------+--------|
          |50(internal)MHz|  N/A   |  N/A   | closed |  open  |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |50(internal)MHz|  N/A   |  N/A   | closed |  open  |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |   40MHz/486   |  N/A   |  N/A   |  open  | closed |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |   40MHz/386   |  open  | closed |  open  | closed |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |   33MHz/486   |  N/A   |  N/A   |  open  | closed |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |   33MHz/386   | closed |  open  |  open  | closed |  open  |
          |---------------+--------+--------+--------+--------+--------|
          |     25MHz     |  N/A   |  N/A   | closed |  open  |  open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                VESA LOCAL BUS CONFIGURATION                |
          |------------------------------------------------------------|
          |  VESA cards supported   |      RNV1       |      RNV2      |
          |-------------------------+-----------------+----------------|
          |            2            |      open       |     closed     |
          |-------------------------+-----------------+----------------|
          |            1            |     closed      |      open      |
          |------------------------------------------------------------|
          | Note:The manufacturer does not recommend using the two     |
          | card setting with a 486DX/50MHz                            |
          +------------------------------------------------------------+