(TXT) View Source
       
       # ATC/UNITRON COMPUTER & COMPUTER PARTS
       
          486SL
       
       Processor  CCX486M6/X486M7/AM486SXL/AM486SX(PLUS)/80486SX/AM486DXL/ 80486DX/              
                  80486DX2/AM486DX4(PLUS)/80486DX4/P23S/P24D/Pentium Overdrive                   
       Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)/ 
       Speed      120(internal)MHz                                                               
       Chip Set   SIS                                                                            
       Max.       128MB                                                                          
       Onboard    
       DRAM       
       Cache      None                                                                           
       BIOS       AMI/Award                                                                      
       Dimensions 220mm x 220mm                                                                  
       I/O        Floppy drive interface, green PC connector, IDE interface, parallel port,      
       Options    serial ports (2), VGA feature connector, VGA port, riser slot                  
       NPU        None                                                                           
       Options    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose              | Location | Purpose       | Location |
          |----------------------+----------+---------------+----------|
          | VGA port             |   CN1    | Green PC      |   JP59   |
          |                      |          | connector     |          |
          |----------------------+----------+---------------+----------|
          | Parallel port        |   CN2    | IDE interface |   JP60   |
          |                      |          | LED           |          |
          |----------------------+----------+---------------+----------|
          | Serial port 2        |   CN3    | Turbo LED     |   JP61   |
          |                      |          |               | pins 1 & |
          |                      |          |               |    2     |
          |----------------------+----------+---------------+----------|
          | Serial port 1        |   CN4    | Turbo switch  |   JP61   |
          |                      |          |               | pins 3 & |
          |                      |          |               |    4     |
          |----------------------+----------+---------------+----------|
          | VGA feature          |   CN5    | Reset switch  |   JP62   |
          | connector            |          |               |          |
          |----------------------+----------+---------------+----------|
          | IDE interface        |   CN6    | Speaker       |   JP63   |
          |----------------------+----------+---------------+----------|
          | Floppy drive         |   CN7    | Power LED &   |   JP64   |
          | interface            |          | keylock       |          |
          |----------------------+----------+---------------+----------|
          | External battery     |   JP16   | Riser Card    |   SL1    |
          |----------------------+----------+---------------+----------|
          | Green PC connector   |   JP51   |               |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          |   | PS/2 mouse enabled               |  JP3   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | PS/2 mouse disabled              |  JP3   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | Power good signal detect from    |  JP4   | pins 1 & 2 |
          |   | power supply                     |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Power good signal detect from    |  JP4   | pins 2 & 3 |
          |   | board                            |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | VGA BIOS enabled                 |  JP7   | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | VGA BIOS disabled                |  JP7   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP8   |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select color        |  JP9   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | Monitor type select monochrome   |  JP9   |    Open    |
          |---+----------------------------------+--------+------------|
          | » | On board VGA enabled             |  JP10  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | On board VGA disabled            |  JP10  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | CMOS memory normal operation     |  JP11  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |  JP11  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | ECP DRQ enabled                  |  JP12  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | ECP DRQ disabled                 |  JP12  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | ECP A10 enabled                  |  JP15  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | ECP A10 disabled                 |  JP15  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Parallel port IRQ select IRQ7    |  JP17  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Parallel port IRQ select IRQ5    |  JP17  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Serial port IRQ select IRQ4      |  JP18  | pins 3 & 4 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Serial port IRQ select IRQ3      |  JP18  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP24  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          |   | CPU voltage regulator type       |  JP27  |   Closed   |
          |   | select auto                      |        |            |
          |---+----------------------------------+--------+------------|
          |   | CPU voltage regulator type       |  JP27  |    Open    |
          |   | select manual                    |        |            |
          |---+----------------------------------+--------+------------|
          | » | IDE interface enabled            |  JP32  |    Open    |
          |---+----------------------------------+--------+------------|
          |   | IDE interface disabled           |  JP32  |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | CPU clock = CLKIN                |  JP47  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | CPU clock delayed for CLKIN      |  JP47  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Internal clock select CLKIN      |  JP50  | pins 1 & 2 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Internal clock select 1/2 CLKIN  |  JP50  | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP65  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |   JV   |    N/A     |
          |   | alter                            |        |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       1MB        |   (1) 256K x 36    |        NONE        |
          |------------------+--------------------+--------------------|
          |       2MB        |   (1) 256K x 36    |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       2MB        |   (1) 512K x 36    |        NONE        |
          |------------------+--------------------+--------------------|
          |       3MB        |   (1) 512K x 36    |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       3MB        |   (1) 256K x 36    |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       4MB        |   (1) 512K x 36    |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       4MB        |    (1) 1M x 36     |        NONE        |
          |------------------+--------------------+--------------------|
          |       5MB        |    (1) 1M x 36     |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       5MB        |   (1) 256K x 36    |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       6MB        |    (1) 1M x 36     |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       6MB        |   (1) 512K x 36    |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       8MB        |    (1) 1M x 36     |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       8MB        |    (1) 2M x 36     |        NONE        |
          |------------------+--------------------+--------------------|
          |       9MB        |    (1) 2M x 36     |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       9MB        |   (1) 256K x 36    |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       10MB       |    (1) 2M x 36     |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       10MB       |   (1) 512K x 36    |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       12MB       |    (1) 2M x 36     |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       12MB       |    (1) 1M x 36     |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       16MB       |    (1) 2M x 36     |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       16MB       |    (1) 4M x 36     |        NONE        |
          |------------------+--------------------+--------------------|
          |       17MB       |    (1) 4M x 36     |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       17MB       |   (1) 256K x 36    |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       18MB       |    (1) 4M x 36     |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       18MB       |   (1) 512K x 36    |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       20MB       |    (1) 4M x 36     |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       20MB       |    (1) 1M x 36     |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       24MB       |    (1) 4M x 36     |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       24MB       |    (1) 2M x 36     |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       32MB       |    (1) 4M x 36     |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       32MB       |    (1) 8M x 36     |        NONE        |
          |------------------+--------------------+--------------------|
          |       33MB       |    (1) 8M x 36     |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       33MB       |   (1) 256K x 36    |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       34MB       |    (1) 8M x 36     |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       34MB       |   (1) 512K x 36    |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       36MB       |    (1) 8M x 36     |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       36MB       |    (1) 1M x 36     |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       40MB       |    (1) 8M x 36     |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       40MB       |    (1) 2M x 36     |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       48MB       |    (1) 8M x 36     |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       48MB       |    (1) 4M x 36     |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       64MB       |    (1) 8M x 36     |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       64MB       |    (1) 16M x 36    |        NONE        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON'T)                 |
          |------------------------------------------------------------|
          |       Size       |       Bank 0       |       Bank 1       |
          |------------------+--------------------+--------------------|
          |       65MB       |    (1) 16M x 36    |   (1) 256K x 36    |
          |------------------+--------------------+--------------------|
          |       65MB       |   (1) 256K x 36    |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |       66MB       |    (1) 16M x 36    |   (1) 512K x 36    |
          |------------------+--------------------+--------------------|
          |       66MB       |   (1) 512K x 36    |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |       68MB       |    (1) 16M x 36    |    (1) 1M x 36     |
          |------------------+--------------------+--------------------|
          |       68MB       |    (1) 1M x 36     |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |       72MB       |    (1) 16M x 36    |    (1) 2M x 36     |
          |------------------+--------------------+--------------------|
          |       72MB       |    (1) 2M x 36     |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |       80MB       |    (1) 16M x 36    |    (1) 4M x 36     |
          |------------------+--------------------+--------------------|
          |       80MB       |    (1) 4M x 36     |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |       96MB       |    (1) 16M x 36    |    (1) 8M x 36     |
          |------------------+--------------------+--------------------|
          |       96MB       |    (1) 8M x 36     |    (1) 16M x 36    |
          |------------------+--------------------+--------------------|
          |      128MB       |    (1) 16M x 36    |    (1) 16M x 36    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |      Type       |  JP19  |  JP20  |  JP21  | JP22  | JP23  |
          |-----------------+--------+--------+--------+-------+-------|
          |     CX486M6     |  N/A   | 2 & 3  | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |    AM486SXL     | 1 & 2  |  N/A   | 2 & 3  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |  AM486SX(PLUS)  | 4 & 5  |  N/A   | 1 & 2  | 2 & 3 | 2 & 3 |
          |-----------------+--------+--------+--------+-------+-------|
          |     80486SX     | 1 & 2  |  N/A   | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |    AM486DXL     | 1 & 2  |  N/A   | 2 & 3  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |     CX486M7     |  N/A   | 2 & 3  | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |     80486DX     | 1 & 2  |  N/A   | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |    80486DX2     | 1 & 2  |  N/A   | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          | AM486DX4(PLUS)  | 4 & 5  |  N/A   | 1 & 2  | 2 & 3 | 2 & 3 |
          |-----------------+--------+--------+--------+-------+-------|
          |    80486DX4     | 1 & 2  |  N/A   | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |      P23S       | 1 & 2  |  N/A   | 1 & 2  | 2 & 3 |  N/A  |
          |-----------------+--------+--------+--------+-------+-------|
          |      P24D       | 2 & 3  | 1 & 2  | 1 & 2  | 1 & 2 | 1 & 2 |
          |-----------------+--------+--------+--------+-------+-------|
          |      P24T       | 1 & 2  | 1 & 2  | 1 & 2  | 1 & 2 |  N/A  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU TYPE CONFIGURATION (CON'T)               |
          |------------------------------------------------------------|
          |      Type      | JP38  | JP39  |  JP40   | JP41  |  JP42   |
          |----------------+-------+-------+---------+-------+---------|
          |    CX486M6     | 2 & 3 | 2 & 3 |   N/A   | 1 & 2 |  2 & 3  |
          |----------------+-------+-------+---------+-------+---------|
          |    AM486SXL    |  N/A  | 3 & 4 |  1 & 2  | 3 & 4 |  2 & 3  |
          |----------------+-------+-------+---------+-------+---------|
          | AM486SX(PLUS)  | 4 & 5 |  N/A  |   N/A   | 2 & 3 |  2 & 3  |
          |----------------+-------+-------+---------+-------+---------|
          |    80486SX     | 4 & 5 |  N/A  |   N/A   | 2 & 3 |  2 & 3  |
          |----------------+-------+-------+---------+-------+---------|
          |    AM486DXL    |  N/A  | 3 & 4 | 1 & 2,  | 3 & 4 | 1 & 2,  |
          |                |       |       |  3 & 4  |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |    CX486M7     | 2 & 3 | 2 & 3 |  3 & 4  | 1 & 2 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |    80486DX     | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |    80486DX2    | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          | AM486DX4(PLUS) | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |    80486DX4    | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |      P23S      | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 |  2 & 3  |
          |----------------+-------+-------+---------+-------+---------|
          |      P24D      | 4 & 5 |  N/A  |  3 & 4  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |----------------+-------+-------+---------+-------+---------|
          |      P24T      | 1 & 2 | 1 & 2 |  2 & 3  | 2 & 3 | 1 & 2,  |
          |                |       |       |         |       |  3 & 4  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU TYPE CONFIGURATION (CON'T)               |
          |------------------------------------------------------------|
          |      Type       | JP43  | JP44 | JP45 | JP46 | JP48 | JP49 |
          |-----------------+-------+------+------+------+------+------|
          |     CX486M6     |  N/A  | N/A  | 2 &  | N/A  | N/A  | N/A  |
          |                 |       |      |  3   |      |      |      |
          |-----------------+-------+------+------+------+------+------|
          |    AM486SXL     |  N/A  | N/A  | 4 &  | N/A  | N/A  | N/A  |
          |                 |       |      |  5   |      |      |      |
          |-----------------+-------+------+------+------+------+------|
          |  AM486SX(PLUS)  |  N/A  | N/A  | 3 &  | N/A  | N/A  | N/A  |
          |                 |       |      |  4   |      |      |      |
          |-----------------+-------+------+------+------+------+------|
          |     80486SX     |  N/A  | N/A  | 3 &  | N/A  | 2 &  | 1 &  |
          |                 |       |      |  4   |      |  3   |  2   |
          |-----------------+-------+------+------+------+------+------|
          |    AM486DXL     |  N/A  | N/A  | 4 &  | N/A  | 1 &  | 2 &  |
          |                 |       |      |  5   |      |  2   |  3   |
          |-----------------+-------+------+------+------+------+------|
          |     CX486M7     |  N/A  | N/A  | 2 &  | N/A  | 1 &  | 2 &  |
          |                 |       |      |  3   |      |  2   |  3   |
          |-----------------+-------+------+------+------+------+------|
          |     80486DX     | 2 & 3 | N/A  | 3 &  | N/A  | 2 &  | 1 &  |
          |                 |       |      |  4   |      |  3   |  2   |
          |-----------------+-------+------+------+------+------+------|
          |    80486DX2     | 2 & 3 | N/A  | 3 &  | N/A  | 2 &  | 1 &  |
          |                 |       |      |  4   |      |  3   |  2   |
          |-----------------+-------+------+------+------+------+------|
          | AM486DX4(PLUS)  | 2 & 3 | N/A  | 3 &  | N/A  | 1 &  | 1 &  |
          |                 |       |      |  4   |      |  2   |  2   |
          |-----------------+-------+------+------+------+------+------|
          |    80486DX4     | 1 & 2 | N/A  | 3 &  | N/A  | 2 &  | 1 &  |
          |                 |       |      |  4   |      |  3   |  2   |
          |-----------------+-------+------+------+------+------+------|
          |      P23S       |  N/A  | N/A  | 3 &  | N/A  | N/A  | N/A  |
          |                 |       |      |  4   |      |      |      |
          |-----------------+-------+------+------+------+------+------|
          |      P24D       |  1 &  | N/A  | 1 &  | N/A  | 1 &  | 1 &  |
          |                 | 2, or |      | 2, 3 |      |  2   |  2   |
          |                 | 2 & 3 |      | & 4  |      |      |      |
          |-----------------+-------+------+------+------+------+------|
          |      P24T       |  N/A  | N/A  | 3 &  | 1 &  | 1 &  | 1 &  |
          |                 |       |      |  4   |  2,  |  2   |  2   |
          |                 |       |      |      | or 2 |      |      |
          |                 |       |      |      | & 3  |      |      |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          | This board also accepts SL-series CPUs & am486dxl2, but no |
          | jumper settings are listed.                                |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |           Speed            |             JP37              |
          |----------------------------+-------------------------------|
          |           25MHz            |   pins 1 & 2, 5 & 6 closed    |
          |----------------------------+-------------------------------|
          |           33MHz            |   pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |           40MHz            |       pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |           50iMHz           |   pins 1 & 2, 5 & 6 closed    |
          |----------------------------+-------------------------------|
          |           50MHz            |       pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |           66iMHz           |   pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |           75iMHz           |   pins 1 & 2, 5 & 6 closed    |
          |----------------------------+-------------------------------|
          |           80iMHz           |       pins 5 & 6 closed       |
          |----------------------------+-------------------------------|
          |          100iMHz           |   pins 1 & 2, 3 & 4 closed    |
          |----------------------------+-------------------------------|
          |          120iMHz           |       pins 5 & 6 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU VOLTAGE CONFIGURATION                  |
          |------------------------------------------------------------|
          |          Voltage           |             JP26              |
          |----------------------------+-------------------------------|
          |        Auto detect         |             Open              |
          |----------------------------+-------------------------------|
          |            3.3v            |       pins 2 & 3 closed       |
          |----------------------------+-------------------------------|
          |             5v             |       pins 1 & 2 closed       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DMA CONFIGURATION                      |
          |------------------------------------------------------------|
          |       DMA        |        JP13        |        JP14        |
          |------------------+--------------------+--------------------|
          | » |    DMA 1     | pins 2 & 3 closed  | pins 2 & 3 closed  |
          |---+--------------+--------------------+--------------------|
          | » |    DMA 3     | pins 1 & 2 closed  | pins 1 & 2 closed  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             FLOPPY ENHANCED MODE CONFIGURATION             |
          |------------------------------------------------------------|
          |        Setting         |      JP28       |      JP29       |
          |------------------------+-----------------+-----------------|
          | »  |      Enabled      |     Closed      |     Closed      |
          |----+-------------------+-----------------+-----------------|
          | »  |     Disabled      |      Open       |      Open       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   KEYBOARD CONFIGURATION                   |
          |------------------------------------------------------------|
          | Type |  JP1   |  JP2   |       JP5       |       JP6       |
          |------+--------+--------+-----------------+-----------------|
          |  AT  |  Open  |  Open  |   pins 2 & 3    |   pins 2 & 3    |
          |      |        |        |     closed      |     closed      |
          |------+--------+--------+-----------------+-----------------|
          | PS/2 | Closed | Closed |   pins 1 & 2    |   pins 1 & 2    |
          |      |        |        |     closed      |     closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 MEDIA DETECT CONFIGURATION                 |
          |------------------------------------------------------------|
          |        Setting         |      JP30       |      JP31       |
          |------------------------+-----------------+-----------------|
          | » |      Enabled       |     Closed      |     Closed      |
          |---+--------------------+-----------------+-----------------|
          | » |      Disabled      |      Open       |      Open       |
          +------------------------------------------------------------+
       
          +----------------------------------------------+
          |         MISCELLANEOUS TECHNICAL NOTE         |
          |----------------------------------------------|
          | Note: The location of pin 1 is unidentified. |
          +----------------------------------------------+