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       # AMERICAN MEGATRENDS, INC.
       
          SUPER VOYAGER VLB-III ISA
       
       Processor  80486SX/80487SX/80486DX/80486DX2/80486DX4/Pentium Overdrive      
       Processor  25/33/40/50(internal)/66(internal)/75(internal)/100(internal)MHz 
       Speed      
       Chip Set   AMI                                                              
       Max.       128MB                                                            
       Onboard    
       DRAM       
       Cache      64/256KB                                                         
       BIOS       AMI                                                              
       Dimensions 330mm x 218mm                                                    
       I/O        32-bit VESA local bus slots (2), floppy drive interface, green   
       Options    PC connector, IDE interface, parallel port, PS/2 mouse           
                  interface, serial ports (2)                                      
       NPU        None                                                             
       Options    
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | PS/2 mouse        |    J1    | Speaker          |   J27    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | IDE interface LED |    J2    | Power LED &      |   J31    |
          |                   |          | keylock          |          |
          |-------------------+----------+------------------+----------|
          | Green PC          |    J3    | Reset switch     |   J32    |
          | connector (power) |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Parallel port     |    J5    | Turbo switch     |   J33    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |    J8    | Password LED     |   J38    |
          | interface         |          |                  |          |
          |-------------------+----------+------------------+----------|
          | IDE interface     |    J9    | Turbo LED        |   J40    |
          |-------------------+----------+------------------+----------|
          | External battery  |   J10    | Green PC         |   J47    |
          |                   |          | connector        |          |
          |                   |          | (monitor)        |          |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   J13    | 32-bit VESA      |  SL1 &   |
          |                   |          | local bus slots  |   SL2    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   J14    |                  |          |
          |------------------------------------------------------------|
          | Note: The locations of J2 & J3 are unidentified.           |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          | » | Factory configured - do not      |  J11   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J12   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J18   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J15   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Parallel port IRQ select IRQ7    |  J22   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port IRQ select IRQ5    |  J22   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  J26   |    Open    |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Serial port 2 IRQ select IRQ3    |  J28   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Serial port 2 IRQ select IRQ4    |  J28   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Serial port 1 IRQ select IRQ4    |  J29   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Serial port 1 IRQ select IRQ3    |  J29   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | On board mouse enabled           |  J30   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | On board mouse disabled          |  J30   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Password LED is used on front    |  J39   | pins 1 & 2 |
          |   | panel                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Password LED using J38           |  J39   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CPU type select PGA              |  J42   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU type select PQFP             |  J42   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CMOS memory normal operation     |  J48   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |  J48   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | BIOS type select 27256           |  J51   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | BIOS type select 27512           |  J51   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |------------------------------------------------------------|
          | Note: The locations of J26 & J39 are unidentified.         |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |    Bank 0     |   Bank 1    |   Bank 2   |  Bank 3  |
          |------+---------------+-------------+------------+----------|
          | 1MB  | (1) 256K x 36 |    NONE     |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 2MB  | (1) 256K x 36 | (1) 256K x  |    NONE    |   NONE   |
          |      |               |     36      |            |          |
          |------+---------------+-------------+------------+----------|
          | 2MB  | (1) 512K x 36 |    NONE     |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 4MB  | (1) 256K x 36 | (1) 256K x  | (1) 512K x |   NONE   |
          |      |               |     36      |     36     |          |
          |------+---------------+-------------+------------+----------|
          | 4MB  | (1) 512K x 36 | (1) 512K x  |    NONE    |   NONE   |
          |      |               |     36      |            |          |
          |------+---------------+-------------+------------+----------|
          | 4MB  |  (1) 1M x 36  |    NONE     |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 5MB  | (1) 256K x 36 | (1) 1M x 36 |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 6MB  | (1) 256K x 36 | (1) 256K x  |  (1) 1M x  |   NONE   |
          |      |               |     36      |     36     |          |
          |------+---------------+-------------+------------+----------|
          | 6MB  | (1) 512K x 36 | (1) 1M x 36 |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 8MB  | (1) 256K x 36 | (1) 256K x  | (1) 512K x | (1) 1M x |
          |      |               |     36      |     36     |    36    |
          |------+---------------+-------------+------------+----------|
          | 8MB  | (1) 512K x 36 | (1) 512K x  |  (1) 1M x  |   NONE   |
          |      |               |     36      |     36     |          |
          |------+---------------+-------------+------------+----------|
          | 8MB  |  (1) 1M x 36  | (1) 1M x 36 |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 8MB  |  (1) 2M x 36  |    NONE     |    NONE    |   NONE   |
          |------+---------------+-------------+------------+----------|
          | 10MB | (1) 256K x 36 | (1) 256K x  |  (1) 1M x  | (1) 1M x |
          |      |               |     36      |     36     |    36    |
          |------+---------------+-------------+------------+----------|
          | 12MB | (1) 512K x 36 | (1) 512K x  |  (1) 1M x  | (1) 1M x |
          |      |               |     36      |     36     |    36    |
          |------+---------------+-------------+------------+----------|
          | 12MB |  (1) 1M x 36  | (1) 1M x 36 |  (1) 1M x  |   NONE   |
          |      |               |             |     36     |          |
          |------+---------------+-------------+------------+----------|
          | 16MB |  (1) 1M x 36  | (1) 1M x 36 |  (1) 1M x  | (1) 1M x |
          |      |               |             |     36     |    36    |
          |------+---------------+-------------+------------+----------|
          | 16MB |  (1) 2M x 36  | (1) 2M x 36 |    NONE    |   NONE   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON'T)                 |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |   Bank 1   |   Bank 2   |   Bank 3   |
          |-------+-------------+------------+------------+------------|
          | 16MB  | (1) 4M x 36 |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          | 17MB  | (1) 256K x  |  (1) 4M x  |    NONE    |    NONE    |
          |       |     36      |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 18MB  | (1) 256K x  | (1) 256K x |  (1) 4M x  |    NONE    |
          |       |     36      |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 18MB  | (1) 512K x  |  (1) 4M x  |    NONE    |    NONE    |
          |       |     36      |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 20MB  | (1) 512K x  | (1) 512K x |  (1) 4M x  |    NONE    |
          |       |     36      |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 20MB  | (1) 1M x 36 |  (1) 4M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 24MB  | (1) 512K x  | (1) 512K x |  (1) 1M x  |  (1) 4M x  |
          |       |     36      |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 24MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 4M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 24MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 2M x 36 |  (1) 2M x  |  (1) 2M x  |  (1) 2M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 4M x 36 |  (1) 4M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 32MB  | (1) 8M x 36 |    NONE    |    NONE    |    NONE    |
          |-------+-------------+------------+------------+------------|
          | 36MB  | (1) 512K x  | (1) 512K x |  (1) 4M x  |  (1) 4M x  |
          |       |     36      |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 36MB  | (1) 1M x 36 |  (1) 4M x  |  (1) 4M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 36MB  | (1) 1M x 36 |  (1) 8M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 40MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 4M x  |  (1) 4M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 40MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 8M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 48MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 4M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 48MB  | (1) 4M 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     |
          |-------+-------------+------------+------------+------------|
          | 64MB  |  (1) 16M x  |    NONE    |    NONE    |    NONE    |
          |       |     36      |            |            |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 8M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 64MB  | (1) 8M x 36 |  (1) 8M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 65MB  | (1) 256K x  | (1) 16M x  |    NONE    |    NONE    |
          |       |     36      |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 68MB  | (1) 1M x 36 | (1) 16M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 68MB  | (1) 1M x 36 |  (1) 8M x  |  (1) 8M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 72MB  | (1) 1M x 36 |  (1) 1M x  | (1) 16M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 72MB  | (1) 1M x 36 |  (1) 1M x  |  (1) 8M x  |  (1) 8M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 4M x 36 | (1) 16M x  |    NONE    |    NONE    |
          |       |             |     36     |            |            |
          |-------+-------------+------------+------------+------------|
          | 80MB  | (1) 4M x 36 |  (1) 8M x  |  (1) 8M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 4M x 36 |  (1) 4M x  | (1) 16M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 4M x 36 |  (1) 4M x  |  (1) 8M x  |  (1) 8M x  |
          |       |             |     36     |     36     |     36     |
          |-------+-------------+------------+------------+------------|
          | 96MB  | (1) 8M x 36 |  (1) 8M x  |  (1) 8M x  |    NONE    |
          |       |             |     36     |     36     |            |
          |-------+-------------+------------+------------+------------|
          | 128MB |  (1) 16M x  | (1) 16M x  |    NONE    |    NONE    |
          |       |     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       |
          |------------------+--------------------+--------------------|
          |       64KB       |     (4) 8K x 8     |     (4) 8K x 8     |
          |------------------+--------------------+--------------------|
          |      256KB       |    (4) 32K x 8     |    (4) 32K x 8     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CACHE JUMPER CONFIGURATION                 |
          |------------------------------------------------------------|
          |  Size   |   SW1/1    |   SW1/2    |   SW1/3    |   SW1/4   |
          |---------+------------+------------+------------+-----------|
          |  64KB   |    Off     |    Off     |    Off     |    Off    |
          |---------+------------+------------+------------+-----------|
          |  256KB  |     On     |     On     |     On     |    On     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |       Type        |     J19      |  J37   |  J43   |  J54  |
          |-------------------+--------------+--------+--------+-------|
          |      80486SX      | 1 & 2, 3 & 4 |  Open  |  Open  |  N/A  |
          |-------------------+--------------+--------+--------+-------|
          |      80487SX      | 1 & 2, 3 & 4 |  Open  |  Open  | 2 & 3 |
          |-------------------+--------------+--------+--------+-------|
          |    80486DX/DX2    | 1 & 2, 3 & 4 |  Open  |  Open  | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          |   80486DX4 (2x)   |    2 & 3     | 1 & 2  |  Open  | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          |  80486DX4 (2.5x)  |    2 & 3     | 2 & 3  |  Open  | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          |   80486DX4 (3x)   |    2 & 3     |  Open  |  Open  | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          |       P23T        | 1 & 2, 3 & 4 |  Open  |  Open  | 2 & 3 |
          |-------------------+--------------+--------+--------+-------|
          |  P4S, P23S, P24S  |    2 & 3     |  Open  |  Open  | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          |       P24CT       |    3 & 4     |  Open  | Closed | 2 & 3 |
          |-------------------+--------------+--------+--------+-------|
          |       P24D        |    3 & 4     |  Open  | Closed | 1 & 2 |
          |-------------------+--------------+--------+--------+-------|
          | Pentium Overdrive |    3 & 4     |  Open  | Closed | 2 & 3 |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU TYPE CONFIGURATION (CON'T)               |
          |------------------------------------------------------------|
          |      Type       |     J55      |     J56      |    J57     |
          |-----------------+--------------+--------------+------------|
          |     80486SX     |    2 & 3     |     Open     | 1 & 2, 3 & |
          |                 |              |              |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          |     80487SX     | 1 & 2, 3 & 4 |     Open     | 1 & 2, 3 & |
          |                 |              |              |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          |   80486DX/DX2   | 1 & 2, 3 & 4 |     Open     | 1 & 2, 3 & |
          |                 |              |              |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          |  80486DX4 (2x)  | 1 & 2, 3 & 4 |  1 & 2, 3 &  |    Open    |
          |                 |              |   4, 5 & 6   |            |
          |-----------------+--------------+--------------+------------|
          | 80486DX4 (2.5x) | 1 & 2, 3 & 4 |  1 & 2, 3 &  |    Open    |
          |                 |              |   4, 5 & 6   |            |
          |-----------------+--------------+--------------+------------|
          |  80486DX4 (3x)  | 1 & 2, 3 & 4 |  1 & 2, 3 &  |    Open    |
          |                 |              |   4, 5 & 6   |            |
          |-----------------+--------------+--------------+------------|
          |      P23T       | 1 & 2, 3 & 4 |     Open     | 1 & 2, 3 & |
          |                 |              |              |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          | P4S, P23S, P24S | 1 & 2, 3 & 4 |     Open     | 1 & 2, 3 & |
          |                 |              |              |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          |      P24CT      | 1 & 2, 3 & 4 |  1 & 2, 3 &  |    Open    |
          |                 |              |   4, 5 & 6   |            |
          |-----------------+--------------+--------------+------------|
          |      P24D       | 1 & 2, 3 & 4 |  1 & 2, 3 &  | 1 & 2, 3 & |
          |                 |              |   4, 5 & 6   |  4, 5 & 6  |
          |-----------------+--------------+--------------+------------|
          |     Pentium     | 1 & 2, 3 & 4 |     Open     | 1 & 2, 3 & |
          |    Overdrive    |              |              |  4, 5 & 6  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |          VESA SPEED (ID2 & ID3) CONFIGURATION          |
          |------------------------------------------------------------|
          |      Speed       |     J16 (ID3)      |     J17 (iD2)      |
          |------------------+--------------------+--------------------|
          |      25MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      33MHz       | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      40MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      50iMHz      | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      50MHz       | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |------------------+--------------------+--------------------|
          |      66iMHz      | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |      75iMHz      | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |     100iMHz      | pins 2 & 3 closed  | pins 2 & 3 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DMA CONFIGURATION                      |
          |------------------------------------------------------------|
          |       DMA        |        J41         |        J44         |
          |------------------+--------------------+--------------------|
          |       None       |        Open        |        Open        |
          |------------------+--------------------+--------------------|
          |       DRQ0       | pins 1 & 2 closed  | pins 1 & 2 closed  |
          |------------------+--------------------+--------------------|
          |       DRQ1       | pins 3 & 4 closed  | pins 3 & 4 closed  |
          |------------------+--------------------+--------------------|
          |       DRQ3       | pins 5 & 6 closed  | pins 5 & 6 closed  |
          +------------------------------------------------------------+