(TXT) View Source
       
       # ACHME COMPUTER, INC.
       
          MS-4129 (ISA 486 AL1), ALI 486 NONCACHE
       
       Processor  CX486SX/80486SX/80487SX/AMD486DX/80486DX/80486DX2/Pentium 
                  Overdrive                                                 
       Processor  25/33/40/50(internal)/50/66(internal)MHz                  
       Speed      
       Chip Set   ALI                                                       
       Max.       112MB                                                     
       Onboard    
       DRAM       
       Cache      None                                                      
       BIOS       AMI                                                       
       Dimensions 220mm x 220mm                                             
       I/O        None                                                      
       Options    
       NPU        CX487                                                     
       Options    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose             | Location  | Purpose      | Location  |
          |---------------------+-----------+--------------+-----------|
          | Keyboard connector  |    J3     | Turbo LED    | J5 (pins  |
          |                     |           |              |  12-13)   |
          |---------------------+-----------+--------------+-----------|
          | External battery    |    J4     | Turbo switch | J5 (pins  |
          |                     |           |              |  15-17)   |
          |---------------------+-----------+--------------+-----------|
          | Power LED & keylock | J5 (pins  | Reset switch | J5 (pins  |
          |                     |   1-5)    |              |  19-20)   |
          |---------------------+-----------+--------------+-----------|
          | Speaker             | J5 (pins  |              |           |
          |                     |   7-10)   |              |           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |  CN1   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  CN2   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  CN3   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Battery type select internal     |   J4   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Battery type select external     |   J4   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Monitor type select monochrome   |  JP4   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |  JP4   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CPU type select PGA              |  JP28  |    Open    |
          |---+----------------------------------+--------+------------|
          |   | CPU type select PQFP             |  JP28  |   Closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 256K x 9  |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    1MB     |     NONE      | (1) 256K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    1MB     |     NONE      |     NONE      | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    1MB     |     NONE      | (1) 256K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    2MB     | (4) 256K x 9  | (1) 256K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    2MB     |     NONE      | (1) 512K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    2MB     |     NONE      |     NONE      | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    2MB     |     NONE      | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    2MB     |     NONE      | (1) 512K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    3MB     | (4) 256K x 9  | (1) 512K x 36 |     NONE      |
          |------------+---------------+---------------+---------------|
          |    3MB     | (4) 256K x 9  | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    3MB     |     NONE      | (1) 256K x 36 | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    3MB     |     NONE      | (1) 512K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     |  (4) 1M x 9   |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    4MB     | (4) 256K x 9  | (1) 512K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     |     NONE      |  (1) 1M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    4MB     |     NONE      |     NONE      |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    4MB     |     NONE      | (1) 512K x 36 | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     |     NONE      |  (1) 1M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    5MB     | (4) 256K x 9  |  (1) 1M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    5MB     |     NONE      | (1) 256K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    5MB     |     NONE      |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    6MB     | (4) 256K x 9  | (1) 256K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    6MB     | (4) 256K x 9  |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    6MB     |  (1) 1M x 9   | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    6MB     |     NONE      | (1) 512K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    7MB     | (4) 256K x 9  | (1) 512K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    7MB     |  (1) 1M x 9   | (1) 512K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    8MB     |     NONE      |  (1) 2M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    8MB     |     NONE      |     NONE      |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    8MB     |     NONE      |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    8MB     |     NONE      |  (1) 2M x 36  |     NONE      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    9MB     | (4) 256K x 9  |  (1) 2M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    9MB     | (4) 256K x 9  |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    9MB     |  (1) 1M x 9   | (1) 256K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    9MB     |  (1) 1M x 9   |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    9MB     |     NONE      | (1) 256K x 36 |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    10MB    |     NONE      | (1) 512K x 36 |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    10MB    |     NONE      |  (1) 2M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    10MB    | (4) 256K x 9  |  (1) 2M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    10MB    |  (1) 1M x 9   | (1) 512K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    10MB    |     NONE      |  (1) 2M x 36  | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    12MB    |  (1) 1M x 9   |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    12MB    |     NONE      |  (1) 1M x 36  |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    12MB    |     NONE      |  (1) 2M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    13MB    | (4) 256K x 9  |  (1) 2M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    13MB    |  (1) 1M x 9   |  (1) 2M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    16MB    |  (4) 4M x 9   |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    16MB    |  (1) 1M x 9   |  (1) 2M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    16MB    |     NONE      |  (1) 4M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    16MB    |     NONE      |     NONE      |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    16MB    |     NONE      |  (1) 2M x 36  |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    16MB    |     NONE      |  (1) 4M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    17MB    | (4) 256K x 9  |  (1) 4M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    17MB    |     NONE      | (1) 256K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    17MB    |     NONE      |  (1) 4M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    18MB    | (4) 256K x 9  | (1) 256K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    18MB    | (4) 256K x 9  |  (1) 4M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    18MB    |  (1) 4M x 9   | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    18MB    |     NONE      | (1) 512K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    18MB    |  (1) 4M x 36  |     NONE      | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    18MB    |     NONE      |  (1) 4M x 36  | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    19MB    | (4) 256K x 9  | (1) 512K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    19MB    |  (1) 4M x 9   | (1) 512K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    20MB    |     NONE      |  (1) 1M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    20MB    |     NONE      |  (1) 4M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    21MB    | (4) 256K x 9  |  (1) 1M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    21MB    | (4) 256K x 9  |  (1) 4M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    21MB    |  (1) 1M x 9   | (1) 256K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    21MB    |  (1) 1M x 9   |  (1) 4M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    21MB    |  (1) 4M x 9   | (1) 256K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    21MB    |  (1) 4M x 9   |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    22MB    |  (1) 1M x 9   | (1) 512K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    22MB    |  (1) 4M x 9   | (1) 512K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (1) 1M x 9   |  (1) 1M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (1) 1M x 9   |  (1) 4M x 36  |  (1) 1M x 36  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    24MB    |  (1) 4M x 9   |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    24MB    |     NONE      |  (1) 2M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    24MB    |     NONE      |  (1) 4M x 36  |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    25MB    | (4) 256K x 9  |  (1) 2M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    25MB    |  (1) 4M x 9   |  (1) 2M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    28MB    |  (1) 1M x 9   |  (1) 2M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    28MB    |  (1) 4M x 9   |  (1) 2M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    32MB    |     NONE      |  (1) 8M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    32MB    |     NONE      |     NONE      |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    32MB    |     NONE      |  (1) 4M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    32MB    |     NONE      |  (1) 8M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    33MB    | (4) 256K x 9  |  (1) 8M x 36  |     NONE      |
          |------------+---------------+---------------+---------------|
          |    33MB    | (4) 256K x 9  |  (1) 4M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    33MB    |  (1) 4M x 9   | (1) 256K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    33MB    |  (1) 4M x 9   |  (1) 4M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    33MB    |     NONE      | (1) 256K x 36 |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    33MB    |     NONE      |  (1) 8M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    34MB    | (4) 256K x 9  |  (1) 8M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    34MB    |  (1) 4M x 9   | (1) 512K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    34MB    |     NONE      | (1) 512K x 36 |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    34MB    |     NONE      |  (1) 8M x 36  | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    36MB    |  (1) 1M x 9   |  (1) 4M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    36MB    |  (1) 4M x 9   |  (1) 1M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    36MB    |  (1) 4M x 9   |  (1) 4M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    36MB    |     NONE      |  (1) 1M x 36  |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    36MB    |     NONE      |  (1) 8M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    37MB    | (4) 256K x 9  |  (1) 8M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    37MB    |  (1) 1M x 9   |  (1) 8M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (1) 1M x 9   |  (1) 8M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    40MB    |  (1) 4M x 9   |  (1) 2M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    40MB    |     NONE      |  (1) 2M x 36  |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    40MB    |     NONE      |  (1) 8M x 36  |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    48MB    |  (1) 4M x 9   |  (1) 4M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    48MB    |     NONE      |  (1) 4M x 36  |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    48MB    |     NONE      |  (1) 8M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    49MB    | (4) 256K x 9  |  (1) 8M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    49MB    |  (1) 4M x 9   |  (1) 8M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    52MB    |  (1) 1M x 9   |  (1) 8M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    52MB    |  (1) 4M x 9   |  (1) 8M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (4) 16M x 9  |     NONE      |     NONE      |
          |------------+---------------+---------------+---------------|
          |    64MB    |  (1) 4M x 9   |  (1) 8M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    64MB    |     NONE      |  (1) 8M x 36  |  (1) 8M x 36  |
          |------------+---------------+---------------+---------------|
          |    66MB    |  (4) 16M x 9  | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    67MB    |  (4) 16M x 9  | (1) 512K x 36 | (1) 256K x 36 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    69MB    |  (4) 16M x 9  | (1) 256K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    69MB    |  (4) 16M x 9  |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    70MB    |  (4) 16M x 9  | (1) 512K x 36 |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    72MB    |  (4) 16M x 9  |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    73MB    |  (4) 16M x 9  |  (1) 2M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    76MB    |  (4) 16M x 9  |  (1) 2M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    81MB    |  (4) 16M x 9  | (1) 256K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    81MB    |  (4) 16M x 9  |  (1) 4M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    82MB    |  (4) 16M x 9  | (1) 512K x 36 |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    84MB    |  (4) 16M x 9  |  (1) 1M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    84MB    |  (4) 16M x 9  |  (1) 4M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    88MB    |  (4) 16M x 9  |  (1) 2M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    96MB    |  (4) 16M x 9  |  (1) 4M x 36  |  (1) 4M x 36  |
          |------------+---------------+---------------+---------------|
          |    97MB    |  (4) 16M x 9  |  (1) 8M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |   100MB    |  (4) 16M x 9  |  (1) 8M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |   112MB    |  (4) 16M x 9  |  (1) 8M x 36  |  (1) 4M x 36  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |    Type     |       JP10        |           JP14           |
          |-------------+-------------------+--------------------------|
          |   80486SX   |       Open        |    pins 2 & 3 closed     |
          |-------------+-------------------+--------------------------|
          |   80487SX   | pins 1 & 2 closed | pins 1 & 2, 3 & 4 closed |
          |-------------+-------------------+--------------------------|
          | 80486DX/DX2 | pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |      Type       |JP11 |JP12 |JP13 |JP17 |JP18 |JP19 | JP27 |
          |-----------------+-----+-----+-----+-----+-----+-----+------|
          | CX486SX/CX487SX |Open |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|Closed|
          |-----------------+-----+-----+-----+-----+-----+-----+------|
          |Pentium Overdrive|Open |1 & 2|1 & 2|1 & 2|1 & 2|1 & 2|Closed|
          |------------------------------------------------------------|
          |Note: Pins designated should be in the closed position.     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |  Speed   |   JP3   |  JP16   | JP24  |        JP25         |
          |----------+---------+---------+-------+---------------------|
          |  25MHz   |  1 & 2  |  1 & 2  | 1 & 2 |        3 & 4        |
          |----------+---------+---------+-------+---------------------|
          |  33MHz   |  1 & 2  |  1 & 2  | 1 & 2 |    1 & 2, 5 & 6     |
          |----------+---------+---------+-------+---------------------|
          |  40MHz   |  1 & 2  |  1 & 2  | 1 & 2 | 1 & 2, 3 & 4, 5 & 6 |
          |----------+---------+---------+-------+---------------------|
          |  50iMHz  |  1 & 2  |  1 & 2  | 1 & 2 |        3 & 4        |
          |----------+---------+---------+-------+---------------------|
          |  50MHz   |  2 & 3  |  2 & 3  | 2 & 3 |        3 & 4        |
          |----------+---------+---------+-------+---------------------|
          |  66iMHz  |  1 & 2  |  1 & 2  | 1 & 2 |    1 & 2, 5 & 6     |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+