(TXT) View Source
       
       # EPSON, INC.
       
          EXPRESS STATION
       
          Processor        80486SX/80487SX/80486DX                       
          Processor Speed  25/33MHz                                      
          Chip Set         Unidentified                                  
          Video Chip Set   Unidentified                                  
          Maximum Onboard  32MB                                          
          Memory           
          Maximum Video    1MB                                           
          Memory           
          Cache            128KB                                         
          BIOS             Unidentified                                  
          Dimensions       254mm x 218mm                                 
          I/O Options      AUI connector, Twisted Pair connector, floppy 
                           drive interface, SCSI interface, parallel     
                           port, PS/2 mouse port, serial ports (3), VGA  
                           feature connector, VGA port, riser slot       
          NPU Options      None                                          
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN2    | PS/2 mouse port  |    J8    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |    J1    | VGA port         |   J16    |
          |-------------------+----------+------------------+----------|
          | Power connector   |    J2    | Twisted Pair     |   J17    |
          |                   |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | Serial port       |    J4    | AUI connector    |   J18    |
          |-------------------+----------+------------------+----------|
          | Serial port       |   J4A    | VGA feature      |   J20    |
          |                   |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   J6A    | Riser slot       |   SL1    |
          |-------------------+----------+------------------+----------|
          | SCSI interface    |   J6B    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | ? | Floppy drive write protect      |  J3   |  Pins 4 & 6  |
          |   | disabled                        |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Floppy drive write protect      |  J3   |  Pins 2 & 4  |
          |   | enabled                         |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | ? | Factory configured - do not     |  J10  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          | ? | On board video enabled          |  J19  |  Pins 2 & 4  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | On board video disabled         |  J19  |  Pins 4 & 6  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | ? | Password normal operation       |  J21  |  Pins 4 & 6  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Password clear                  |  J21  |  Pins 2 & 4  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | ? | CMOS memory normal operation    |  J21  | Pins 11 & 13 |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | CMOS memory clear               |  J21  | Pins 9 & 11  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | ? | Flash BIOS normal operation     |  J21  | Pins 10 & 12 |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Flash BIOS recovery mode        |  J21  | Pins 12 & 14 |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 1MB  | (1) 256K x  |    None     |    None    |    None    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (1) 512K x  |    None     |    None    |    None    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (1) 256K x  | (1) 256K x  |    None    |    None    |
          |      |     36      |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 1M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 512K x  | (1) 512K x  |    None    |    None    |
          |      |     36      |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 256K x  | (1) 256K x  | (1) 256K x | (1) 256K x |
          |      |     36      |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 2M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 512K x  | (1) 512K x  | (1) 512K x | (1) 512K x |
          |      |     36      |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 | (1) 2M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |
          |      |             |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |        Size        |                  CN3                  |
          |--------------------+---------------------------------------|
          |        None        |             Not installed             |
          |--------------------+---------------------------------------|
          |       128KB        | Intel 485 TurboCache module installed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          |      Size       |      Bank 0      |        Bank 1         |
          |-----------------+------------------+-----------------------|
          |      512KB      |      512KB       |         None          |
          |-----------------+------------------+-----------------------|
          |       1MB       |      512KB       |     (4) 256K x 4      |
          |------------------------------------------------------------|
          | Note: Bank 0 is factory installed and is not configurable. |
          | The location is unidentified.                              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             VIDEO MEMORY JUMPER CONFIGURATION              |
          |------------------------------------------------------------|
          |            Size            |              J19              |
          |----------------------------+-------------------------------|
          |           512KB            |       Pins 1 & 3 closed       |
          |----------------------------+-------------------------------|
          |            1MB             |       Pins 3 & 5 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  FLASH BIOS CONFIGURATION                  |
          |------------------------------------------------------------|
          |        Setting         |       J5        |       J21       |
          |------------------------+-----------------+-----------------|
          | » |   Write protect    |   Pins 2 & 4    |   Pins 1 & 3    |
          |   |      disabled      |     closed      |     closed      |
          |---+--------------------+-----------------+-----------------|
          |   |   Write protect    |   Pins 4 & 6    |   Pins 3 & 5    |
          |   |      enabled       |     closed      |     closed      |
          +------------------------------------------------------------+