(TXT) View Source
       
       # COMPUTREND SYSTEMS, INC.
       
          VLB S14 (SIS486)
       
       Processor  80486SX/SL80486SX/CX486DX/AM486DX/80486DX/SL80486DX/CX486DX2/ 
                  AM486DX2/80486DX2/SL80486DX2                                  
       Processor  25/33/40/50(internal)/50/66(internal)MHz                      
       Speed      
       Chip Set   SIS                                                           
       Max.       128MB                                                         
       Onboard    
       DRAM       
       Cache      128/256KB                                                     
       BIOS       AMI/Phoenix                                                   
       Dimensions 260mm x 221mm                                                 
       I/O        Floppy drive interface, game interface, green PC connector,   
       Options    IDE interface, parallel port, PS/2 mouse port, serial ports   
                  (2), VGA feature connector, VGA port, riser slot              
       NPU        None                                                          
       Options    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose          | Location  |
          |------------------+----------+------------------+-----------|
          | Game interface   |   CN1    | Power LED &      | JFP pins  |
          |                  |          | keylock          |   1 - 5   |
          |------------------+----------+------------------+-----------|
          | PS/2 mouse port  |   CN2    | Speaker          | JFP pins  |
          |                  |          |                  |  7 - 10   |
          |------------------+----------+------------------+-----------|
          | Serial port 1    |   CN3    | Turbo LED        | JFP pins  |
          |                  |          |                  |  12 & 13  |
          |------------------+----------+------------------+-----------|
          | Serial port 2    |   CN4    | Turbo switch     | JFP pins  |
          |                  |          |                  |  15 - 17  |
          |------------------+----------+------------------+-----------|
          | Parallel port    |   CN5    | Reset switch     | JFP pins  |
          |                  |          |                  |  19 & 20  |
          |------------------+----------+------------------+-----------|
          | VGA port         |   CN6    | IDE interface    |   JFPA    |
          |                  |          | LED              |           |
          |------------------+----------+------------------+-----------|
          | Floppy drive     |   CN7    | Green PC         |    JG1    |
          | interface        |          | connector        |           |
          |                  |          | (monitor)        |           |
          |------------------+----------+------------------+-----------|
          | VGA feature      |   CN8    | Green PC LED     |    JG2    |
          | connector        |          |                  |           |
          |------------------+----------+------------------+-----------|
          | IDE interface    |   CN9    | Green PC         |    JG3    |
          |                  |          | connector        |           |
          |------------------+----------+------------------+-----------|
          | External battery |    JB    | Riser slot       |    SL1    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Jumper |  Position   |
          |-------------------------------------+--------+-------------|
          |   | Battery type select internal    |   JB   | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Battery type select external    |   JB   |   Closed    |
          |---+---------------------------------+--------+-------------|
          |   | Serial port 1 select COM1       | JCOM1  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Serial port 1 select COM3       | JCOM1  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Serial port 2 select COM2       | JCOM2  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Serial port 2 select COM4       | JCOM2  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Floppy drive interface enabled  |  JFDD  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Floppy drive interface disabled |  JFDD  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Game port enabled               | JGAME  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Game port disabled              | JGAME  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | IDE interface enabled           |  JHDD  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | IDE interface disabled          |  JHDD  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Parallel port select LPT1       |  JPP1  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Parallel port select LPT2       |  JPP1  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Parallel port select IRQ7       |  JPP2  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | Parallel port select IRQ5       |  JPP2  | Pins 2 & 3  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | On board VGA enabled            |  JVGA  | Pins 1 & 2  |
          |   |                                 |        |   closed    |
          |---+---------------------------------+--------+-------------|
          |   | On board VGA disabled           |  JVGA  | 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      |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 1M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 512K x  | (1) 256K x  | (1) 256K x |    None    |
          |      |     36      |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 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     |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (1) 1M x 36 | (1) 256K x  |    None    |    None    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (1) 256K x  | (1) 512K x  | (1) 512K x |    None    |
          |      |     36      |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (1) 256K x  | (1) 1M x 36 |    None    |    None    |
          |      |     36      |             |            |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (1) 1M x 36 | (1) 512K x  |    None    |    None    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 2M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 512K x  | (1) 512K x |    None    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 2M x 36 | (1) 256K x  |    None    |    None    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 256K x  | (1) 1M x 36 |  (1) 1M x  |    None    |
          |      |     36      |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 256K x  | (1) 2M x 36 |    None    |    None    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 256K x  | (1) 256K x  |  (1) 1M x  |  (1) 1M x  |
          |      |     36      |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 2M x 36 | (1) 512K x  | (1) 512K x |    None    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 2M x 36 | (1) 1M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 2M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 4M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 | (1) 1M x 36 |  (1) 1M x  |    None    |
          |      |             |             |     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     |
          |------+-------------+-------------+------------+------------|
          | 17MB | (1) 4M x 36 | (1) 256K x  |    None    |    None    |
          |      |             |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 4M x 36 | (1) 256K x  | (1) 256K x |    None    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 4M x 36 | (1) 512K x  | (1) 512K x |    None    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 4M x 36 | (1) 1M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 2M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 1M x 36 | (1) 2M x 36 |  (1) 2M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 1M x 36 | (1) 4M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 8M x 36 |    None     |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 4M x 36 | (1) 2M x 36 |  (1) 2M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 4M x 36 | (1) 4M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 32MB | (1) 2M x 36 | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 35MB | (1) 8M x 36 | (1) 256K x  | (1) 256K x | (1) 256K x |
          |      |             |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 8M x 36 | (1) 512K x  | (1) 512K x |    None    |
          |      |             |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 8M x 36 | (1) 1M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 1M x 36 | (1) 4M x 36 |  (1) 4M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 36MB | (1) 1M x 36 | (1) 8M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 8M x 36 | (1) 1M x 36 |  (1) 1M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 8M x 36 | (1) 2M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 4M x 36 | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 2M x 36 | (1) 4M x 36 |  (1) 4M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 40MB | (1) 2M x 36 | (1) 8M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 44MB | (1) 8M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 8M x 36 | (1) 2M x 36 |  (1) 2M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 8M x 36 | (1) 4M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 4M x 36 | (1) 4M x 36 |  (1) 4M x  |    None    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 48MB | (1) 4M x 36 | (1) 8M x 36 |    None    |    None    |
          |------+-------------+-------------+------------+------------|
          | 49MB | (1) 256K x  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |
          |      |     36      |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 50MB  | (1) 512K x  |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |     36      |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 52MB  | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 56MB  | (1) 8M x 36 |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 56MB  | (1) 2M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 8M x 36 |  (1) 4M x  |  (1) 4M x  |    None    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 8M x 36 |  (1) 8M x  |    None    |    None    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 72MB  | (1) 2M x 36 |  (1) 8M x  |  (1) 8M x  |    None    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 8M x 36 |  (1) 4M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 4M x 36 |  (1) 8M x  |  (1) 8M x  |    None    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |    None    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 98MB  | (1) 512K x  |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |       |     36      |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 128MB | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |  (1) 8M x  |
          |       |             |     36     |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |   Size    |   Bank 0    |   Bank 1    |        TAG         |
          |-----------+-------------+-------------+--------------------|
          |   128KB   | (4) 32K x 8 |    None     | (1) 8K/16K/32K x 8 |
          |-----------+-------------+-------------+--------------------|
          | 256KB (A) | (4) 32K x 8 | (4) 32K x 8 |  (1) 16K/32K x 8   |
          |-----------+-------------+-------------+--------------------|
          | 256KB (B) | (4) 64K x 8 |    None     |  (1) 16K/32K x 8   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |   Size    |      JS1       |      JS2      |      JS3      |
          |-----------+----------------+---------------+---------------|
          |   128KB   |   Pins 1 & 2   |  Pins 1 & 2   |  Pins 1 & 2   |
          |           |     closed     |    closed     |    closed     |
          |-----------+----------------+---------------+---------------|
          | 256KB (A) |   Pins 2 & 3   |  Pins 1 & 2   |  Pins 2 & 3   |
          |           |     closed     |    closed     |    closed     |
          |-----------+----------------+---------------+---------------|
          | 256KB (B) |   Pins 2 & 3   |  Pins 1 & 2   |  Pins 1 & 2   |
          |           |     closed     |    closed     |    closed     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Type      |    JC2    |   JC3    |   JC4    |   JC5    |
          |---------------+-----------+----------+----------+----------|
          |     Cyrix     | 2 & 3, 5  | 2 & 3, 5 | 2 & 3, 5 | 2 & 3, 5 |
          |               |    & 6    |   & 6    |   & 6    |   & 6    |
          |---------------+-----------+----------+----------+----------|
          |      AMD      |   6 & 7   |  6 & 7   |  6 & 7   |  6 & 7   |
          |---------------+-----------+----------+----------+----------|
          |     Intel     |   6 & 7   |  6 & 7   |  6 & 7   |  6 & 7   |
          |---------------+-----------+----------+----------+----------|
          |     Intel     | 1 & 2, 6  | 1 & 2, 6 | 1 & 2, 6 | 1 & 2, 6 |
          |   SL-series   |    & 7    |   & 7    |   & 7    |   & 7    |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Type       |        JC6         |        JC7         |
          |------------------+--------------------+--------------------|
          |      Cyrix       | Pins 1 & 2 closed  | Pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |       AMD        | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      Intel       | Pins 2 & 3 closed  | Pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |           Type           |               JC1               |
          |--------------------------+---------------------------------|
          |            SX            | Pins 2 & 3, 5 & 6, 7 & 8 closed |
          |--------------------------+---------------------------------|
          |            DX            | Pins 4 & 7, 2 & 5, 6 & 9 closed |
          |--------------------------+---------------------------------|
          |           DX2            | Pins 1 & 4, 2 & 5, 6 & 9 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |  Speed   |        JK1        |   JK2   |   JK3   |   JK4   |
          |----------+-------------------+---------+---------+---------|
          |  25MHz   | Pins 2 & 3 closed | Closed  | Closed  | Closed  |
          |----------+-------------------+---------+---------+---------|
          |  33MHz   | Pins 1 & 2 closed | Closed  |  Open   | Closed  |
          |----------+-------------------+---------+---------+---------|
          |  40MHz   | Pins 1 & 2 closed | Closed  | Closed  |  Open   |
          |----------+-------------------+---------+---------+---------|
          |  50iMHz  | Pins 2 & 3 closed | Closed  | Closed  | Closed  |
          |----------+-------------------+---------+---------+---------|
          |  50MHz   | Pins 1 & 2 closed |  Open   | Closed  | Closed  |
          |----------+-------------------+---------+---------+---------|
          |  66iMHz  | Pins 1 & 2 closed | Closed  |  Open   | Closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU VOLTAGE CONFIGURATION                  |
          |------------------------------------------------------------|
          |          Voltage           |             JP24              |
          |----------------------------+-------------------------------|
          |            3.3v            |   Pins 7 & 8, 9 & 10 closed   |
          |----------------------------+-------------------------------|
          |             5v             |   Pins 1 & 2, 3 & 4 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 VIDEO MEMORY CONFIGURATION                 |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |   512KB    | (1) 256K x 16 |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    1MB     | (1) 256K x 16 | (1) 256K x 16 |     None      |
          |------------+---------------+---------------+---------------|
          |    2MB     | (1) 256K x 16 | (1) 256K x 16 | (2) 256K x 16 |
          +------------------------------------------------------------+