(TXT) View Source
       
       # CHAINTECH COMPUTER COMPANY, LTD.
       
          ML-757
       
          +------------------------------------------------------------+
          |------------------------------------------------------------|
          | Data bus:         | 32-bit VL-bus                          |
          |-------------------+----------------------------------------|
          | Size:             | Three-quarter length, half-height card |
          |-------------------+----------------------------------------|
          | Hard drive        | Four IDE(AT) drives                    |
          | supported:        |                                        |
          |-------------------+----------------------------------------|
          | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
          | supported:        | drives                                 |
          +------------------------------------------------------------+
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |                    Function                     | Location |
          |-------------------------------------------------+----------|
          | 40-pin primary IDE(AT) connector                |    J1    |
          |-------------------------------------------------+----------|
          | 40-pin secondary IDE(AT) connector              |    J2    |
          |-------------------------------------------------+----------|
          | 34-pin cable connector - floppy drive           |    J3    |
          |-------------------------------------------------+----------|
          | 10-pin serial port 1 internal, 9-pin serial     |    J4    |
          | port 1 - external                               |          |
          |-------------------------------------------------+----------|
          | 10-pin serial port 2 - internal                 |    J5    |
          |-------------------------------------------------+----------|
          | 16-pin game port                                |    J6    |
          |-------------------------------------------------+----------|
          | 25-pin parallel port - external                 |    J7    |
          |-------------------------------------------------+----------|
          | 4-pin connector - drive active LED              |    J8    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              PARALLEL PORT ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |       LPT        |        JP13        |        JP14        |
          |------------------+--------------------+--------------------|
          | » | LPT1 (378h)  | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   | LPT2 (278h)  | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   | LPT3 (3BCh)  | pins 2 & 3 closed  | pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | pins 1 & 2 closed  | pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |             Function              |   Location   | Setting |
          |-----------------------------------+--------------+---------|
          | » | IDE(AT) interface enabled     | JP1/pins 1 & | closed  |
          |   |                               |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | IDE(AT) interface disabled    | JP1/pins 2 & | closed  |
          |   |                               |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Primary & secondary IDE       | JP2/pins 1 & | closed  |
          |   | enabled                       |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Primary IDE enabled,          | JP2/pins 2 & | closed  |
          |   | secondary disabled            |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | CPU clock is 40 or 50MHz      | JP3/pins 1 & | closed  |
          |   |                               |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | CPU clock <=33MHz             | JP3/pins 2 & | closed  |
          |   |                               |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |     JP4      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Factory configured - do not   |     JP5      |   N/A   |
          |   | alter                         |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy drive order is normal  | JP6/pins 1 & | closed  |
          |   | (A:, B:)                      |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy drive order is         | JP6/pins 2 & | closed  |
          |   | reversed (B:, A:)             |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy controller primary     | JP7/pins 1 & | closed  |
          |   | address is 3F0h               |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy controller secondary   | JP7/pins 2 & | closed  |
          |   | address is 370h               |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Floppy drive interface        | JP8/pins 1 & | closed  |
          |   | enabled                       |      2       |         |
          |---+-------------------------------+--------------+---------|
          |   | Floppy drive interface        | JP8/pins 2 & | closed  |
          |   | disabled                      |      3       |         |
          |---+-------------------------------+--------------+---------|
          | » | Parallel port is              |     JP15     | closed  |
          |   | unidirectional                |              |         |
          |---+-------------------------------+--------------+---------|
          |   | Parallel port is              |     JP15     |  open   |
          |   | bi-directional                |              |         |
          |---+-------------------------------+--------------+---------|
          | » | Parallel port IRQ 7 select    |   JP16/ 1    | closed  |
          |---+-------------------------------+--------------+---------|
          |   | Parallel port IRQ 5 select    |   JP16/ 2    | closed  |
          |---+-------------------------------+--------------+---------|
          | » | Game port enabled             |     JP17     | closed  |
          |---+-------------------------------+--------------+---------|
          |   | Game port disabled            |     JP17     |  open   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT 1 ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |       COM        |        JP9         |        JP10        |
          |------------------+--------------------+--------------------|
          | » | COM1 (3F8h)  | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   | COM3 (3E8h)  | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | pins 2 & 3 closed  | pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT 2 ADDRESS SELECTION               |
          |------------------------------------------------------------|
          |       COM        |        JP11        |        JP12        |
          |------------------+--------------------+--------------------|
          | » | COM2 (2F8h)  | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |---+--------------+--------------------+--------------------|
          |   | COM4 (2E8h)  | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          |   |   Disabled   | pins 2 & 3 closed  | pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               MISCELLANEOUS TECHNICAL NOTES                |
          |------------------------------------------------------------|
          |          Pin 1 in jumper blocks is unidentified.           |
          +------------------------------------------------------------+