(TXT) View Source
       
       # UNIDENTIFIED
       
          UC 4915-C AIO
       
          Processor   80486SX/CX487SX/80486DX/80486DX2/P23N/P23T/Pentium 
                      Overdrive                                          
          Processor   25/33/40/50(internal)/50/66(internal)MHz           
          Speed       
          Chip Set    UMC                                                
          Max.        64MB                                               
          Onboard     
          DRAM        
          Cache       64/128/256KB                                       
          BIOS        AMI                                                
          Dimensions  330mm x 218mm                                      
          I/O Options Floppy drive interface, game port, IDE interface,  
                      parallel port, serial ports (2)                    
          NPU Options None                                               
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose              | Location | Purpose       | Location |
          |----------------------+----------+---------------+----------|
          | External battery     |    J1    | Speaker       |    J9    |
          |----------------------+----------+---------------+----------|
          | Serial port 1        |    J2    | IDE interface |   JP14   |
          |                      |          | LED           |          |
          |----------------------+----------+---------------+----------|
          | Game port            |    J4    | Power LED &   |   JP40   |
          |                      |          | keylock       |          |
          |----------------------+----------+---------------+----------|
          | Parallel port        |    J5    | Reset switch  |   JP41   |
          |----------------------+----------+---------------+----------|
          | Serial port 2        |    J6    | Turbo switch  |   JP42   |
          |----------------------+----------+---------------+----------|
          | Floppy drive         |    J7    | Turbo LED     |   JP43   |
          | interface            |          |               |          |
          |----------------------+----------+---------------+----------|
          | IDE interface        |    J8    |               |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Jumper |  Position   |
          |-------------------------------------+--------+-------------|
          | » | BIOS type select EPROM          |  JP2   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | BIOS type select flash BIOS     |  JP2   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Floppy drive interface enabled  |  JP3   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Floppy drive interface disabled |  JP3   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Parallel port enabled           |  JP4   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Parallel port disabled          |  JP4   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | COM2/4 enabled                  |  JP5   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | COM2/4 disabled                 |  JP5   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | COM2 enabled                    |  JP6   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | COM4 enabled                    |  JP6   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | COM1 enabled                    |  JP7   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | COM3 enabled                    |  JP7   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | COM1/3 enabled                  |  JP8   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | COM1/3 disabled                 |  JP8   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Printer I/O port select LPT2    |  JP9   | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Printer I/O port select LPT3    |  JP9   | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Monitor type select monochrome  |  JP10  | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Monitor type select color       |  JP10  | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Game port enabled               |  JP11  | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Game port disabled-             |  JP11  | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Hard drive installed            |  JP12  | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Hard drive not installed        |  JP12  | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | IDE interface enabled           |  JP13  | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | IDE interface disabled          |  JP13  | pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          | » | Weitek VGA card not installed   |  JP30  | pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Weitek VGA card installed       |  JP30  | pins 2 & 3  |
          |   |                                 |        |   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     |            |            |
          |------+--------------+------------+------------+------------|
          | 3MB  |  (1) 512K x  |    NONE    | (1) 256K x |    NONE    |
          |      |      36      |            |     36     |            |
          |------+--------------+------------+------------+------------|
          | 3MB  |  (1) 256K x  | (1) 256K x | (1) 256K x |    NONE    |
          |      |      36      |     36     |     36     |            |
          |------+--------------+------------+------------+------------|
          | 4MB  |  (1) 512K x  |    NONE    | (1) 256K x | (1) 256K x |
          |      |      36      |            |     36     |     36     |
          |------+--------------+------------+------------+------------|
          | 4MB  |  (1) 512K x  |    NONE    | (1) 512K x |    NONE    |
          |      |      36      |            |     36     |            |
          |------+--------------+------------+------------+------------|
          | 4MB  |  (1) 256K x  | (1) 256K x | (1) 256K x | (1) 256K x |
          |      |      36      |     36     |     36     |     36     |
          |------+--------------+------------+------------+------------|
          | 4MB  | (1) 1M x 36  |    NONE    |    NONE    |    NONE    |
          |------+--------------+------------+------------+------------|
          | 5MB  | (1) 1M x 36  | (1) 256K x |    NONE    |    NONE    |
          |      |              |     36     |            |            |
          |------+--------------+------------+------------+------------|
          | 6MB  |  (1) 512K x  |    NONE    |  (1) 1M x  |    NONE    |
          |      |      36      |            |     36     |            |
          |------+--------------+------------+------------+------------|
          | 6MB  | (1) 1M x 36  | (1) 256K x | (1) 256K x |    NONE    |
          |      |              |     36     |     36     |            |
          |------+--------------+------------+------------+------------|
          | 7MB  |  (1) 512K x  |    NONE    |  (1) 1M x  | (1) 256K x |
          |      |      36      |            |     36     |     36     |
          |------+--------------+------------+------------+------------|
          | 7MB  | (1) 1M x 36  | (1) 256K x | (1) 256K x | (1) 256K x |
          |      |              |     36     |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 2M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 2M x 36 |    NONE     | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 512K x  |    NONE     |  (1) 2M x  |    NONE    |
          |      |     36      |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 2M x 36 |    NONE     | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 2M x 36 |    NONE     | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 2M x 36 |    NONE     |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 13MB | (1) 2M x 36 |    NONE     |  (1) 1M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 13MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 |    NONE     |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 |    NONE     |  (1) 2M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 4M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 17MB | (1) 4M x 36 | (1) 256K x  |    NONE    |    NONE    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 512K x  |    NONE     |  (1) 4M x  |    NONE    |
          |      |     36      |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 4M x 36 | (1) 256K x  | (1) 256K x |    NONE    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 19MB | (1) 512K x  |    NONE     |  (1) 4M x  | (1) 256K x |
          |      |     36      |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 19MB | (1) 4M x 36 | (1) 256K x  | (1) 256K x | (1) 256K x |
          |      |             |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 4M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 22MB | (1) 512K x  |    NONE     |  (1) 4M x  |  (1) 1M x  |
          |      |     36      |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 24MB | (1) 2M x 36 |    NONE     |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 24MB | (1) 4M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 25MB | (1) 2M x 36 |    NONE     |  (1) 4M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 25MB | (1) 4M x 36 | (1) 1M x 36 |  (1) 1M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 28MB | (1) 2M x 36 |    NONE     |  (1) 4M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 28MB | (1) 4M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 4M x 36 | (1) 4M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 512K x  |    NONE     |  (1) 4M x  |  (1) 4M x  |
          |      |     36      |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 37MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 2M x 36 |    NONE     |  (1) 4M x  |  (1) 4M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 49MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 52MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 64MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
          |      |             |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |      TAG      |
          |------------+---------------+---------------+---------------|
          |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
          |------------+---------------+---------------+---------------|
          |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          | Size  |  JP31  |  JP34  |      JP35       |      JP36      |
          |-------+--------+--------+-----------------+----------------|
          | 64KB  |  Open  |  Open  |      Open       |   pins 1 & 2   |
          |       |        |        |                 |     closed     |
          |-------+--------+--------+-----------------+----------------|
          | 128KB |  Open  | Closed |   pins 2 & 3    |   pins 2 & 3   |
          |       |        |        |     closed      |     closed     |
          |-------+--------+--------+-----------------+----------------|
          | 256KB | Closed | Closed |   pins 1 & 2    |   pins 1 & 2   |
          |       |        |        |     closed      |     closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Type        |        JP38        |       JP39        |
          |-------------------+--------------------+-------------------|
          |      80486SX      | pins 2 & 3 closed  |       Open        |
          |-------------------+--------------------+-------------------|
          |      80486DX      | pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          |     80486DX2      | pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          |       P23N        | pins 1 & 2, 3 & 4  | pins 1 & 2 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          |       P23T        | pins 1 & 2, 3 & 4  | pins 1 & 2 closed |
          |                   |       closed       |                   |
          |-------------------+--------------------+-------------------|
          | Pentium Overdrive | pins 1 & 2, 3 & 4  | pins 2 & 3 closed |
          |                   |       closed       |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              CPU TYPE CONFIGURATION (CX487SX)              |
          |------------------------------------------------------------|
          |     Type      |       JP21       |    JP25    |    JP37    |
          |---------------+------------------+------------+------------|
          |   Installed   |    pins 1 & 2    | pins 1 & 2 | pins 1 & 2 |
          |               |      closed      |   closed   |   closed   |
          |---------------+------------------+------------+------------|
          | Not installed |    pins 2 & 3    | pins 2 & 3 | pins 2 & 3 |
          |               |      closed      |   closed   |   closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Speed        |       JP26        |       JP27        |
          |--------------------+-------------------+-------------------|
          |       25MHz        |      Closed       |      Closed       |
          |--------------------+-------------------+-------------------|
          |       33MHz        |       Open        |      Closed       |
          |--------------------+-------------------+-------------------|
          |       40MHz        |      Closed       |       Open        |
          |--------------------+-------------------+-------------------|
          |       50iMHz       |      Closed       |      Closed       |
          |--------------------+-------------------+-------------------|
          |       50MHz        |       Open        |       Open        |
          |--------------------+-------------------+-------------------|
          |       66iMHz       |       Open        |      Closed       |
          +------------------------------------------------------------+