(TXT) View Source
       
       # DASH COMPUTER, INC.
       
          DC-420
       
       Processor  CX486DX/IBM486DX/TI486DX/SGS486DX/80486DX/AM486DX2/              
                  (SL)486DX2/CX486DX2/IBM486DX2/TI486DX2/SGS486DX2/                
                  80486DX2/CX486DX4/IBM486DX4/TI486DX4/SGS486DX4/                  
                  AM486DX4/(SL)AM486DX4/SL80486DX4/P24D/CX5X86/AM X5               
       Processor  25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 
       Speed      100(internal)/120(internal)/133(internal)MHz                     
       Chip Set   UMC                                                              
       Video Chip None                                                             
       Set        
       Maximum    128MB                                                            
       Onboard    
       Memory     
       Maximum    None                                                             
       Video      
       Memory     
       Cache      128/256/512/1024KB                                               
       BIOS       AMI                                                              
       Dimensions 250mm x 220mm                                                    
       I/O        32-bit VESA local bus slot, 32-bit PCI slots (3), floppy drive   
       Options    interface, green PC connector, IDE interfaces (2), parallel      
                  port, serial ports (2), cache slot                               
       NPU        None                                                             
       Options    
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose           | Location | Purpose          | Location |
          |-------------------+----------+------------------+----------|
          | Serial port 1     |   CN1    | Turbo LED        |   J10    |
          |-------------------+----------+------------------+----------|
          | Serial port 2     |   CN2    | Reset switch     |   J11    |
          |-------------------+----------+------------------+----------|
          | Parallel port     |   CN3    | Turbo switch     |   J12    |
          |-------------------+----------+------------------+----------|
          | Floppy drive      |   CN4    | IDE interface    |   J13    |
          | interface         |          | LED              |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 1   |   CN5    | Green PC         |   J14    |
          |                   |          | connector        |          |
          |-------------------+----------+------------------+----------|
          | IDE interface 2   |   CN6    | 32-bit PCI slots |  PC1 -   |
          |                   |          |                  |   PC3    |
          |-------------------+----------+------------------+----------|
          | External battery  |    J4    | 32-bit VESA      |   SL1    |
          |                   |          | local bus slot   |          |
          |-------------------+----------+------------------+----------|
          | Power LED &       |    J8    | Cache slot       |   SL2    |
          | keylock           |          |                  |          |
          |-------------------+----------+------------------+----------|
          | Speaker           |    J9    |                  |          |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          |   | Battery type select internal    |  J4   |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Battery type select external    |  J4   |    Closed    |
          |---+---------------------------------+-------+--------------|
          |   | CMOS memory clear               |  J4   |  Pins 3 & 4  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          | » | Factory configured - do not     |  JP1  | Unidentified |
          |   | alter                           |       |              |
          |---+---------------------------------+-------+--------------|
          |   | Flash BIOS voltage select 12v   |  JP2  |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Flash BIOS voltage select 5v    |  JP2  |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          |    Size    |    Bank 0     |    Bank 1     |    Bank 2     |
          |------------+---------------+---------------+---------------|
          |    1MB     | (4) 256K x 9  |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    1MB     |     None      | (1) 256K x 36 |     None      |
          |------------+---------------+---------------+---------------|
          |    2MB     |     None      | (1) 512K x 36 |     None      |
          |------------+---------------+---------------+---------------|
          |    3MB     | (4) 256K x 9  | (1) 256K x 36 | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    3MB     | (4) 256K x 9  |     None      | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     | (4) 256K x 9  | (1) 256K x 36 | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     |  (4) 1M x 9   |     None      |     None      |
          |------------+---------------+---------------+---------------|
          |    4MB     |     None      | (1) 512K x 36 | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    4MB     |     None      |  (1) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    4MB     |     None      |     None      |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    5MB     | (4) 256K x 9  |  (1) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    5MB     | (4) 256K x 9  |     None      |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    5MB     |     None      |  (1) 1M x 36  | (1) 256K x 36 |
          |------------+---------------+---------------+---------------|
          |    6MB     |  (4) 1M x 9   |     None      | (1) 512K x 36 |
          |------------+---------------+---------------+---------------|
          |    8MB     |  (4) 1M x 9   |  (1) 1M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    8MB     |  (4) 1M x 9   |     None      |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    8MB     |     None      |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    8MB     |     None      |  (1) 2M x 36  |     None      |
          |------------+---------------+---------------+---------------|
          |    8MB     |     None      |     None      |  (1) 2M x 36  |
          |------------+---------------+---------------+---------------|
          |    9MB     | (4) 256K x 9  |  (1) 1M x 36  |  (1) 1M x 36  |
          |------------+---------------+---------------+---------------|
          |    9MB     |  (4) 1M x 9   |  (1) 1M x 36  | (1) 256K x 36 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          |   Size   |     Bank 0     |     Bank 1     |    Bank 2     |
          |----------+----------------+----------------+---------------|
          |   9MB    |   (4) 1M x 9   | (1) 256K x 36  |  (1) 1M x 36  |
          |----------+----------------+----------------+---------------|
          |   10MB   |   (4) 1M x 9   |  (1) 1M x 36   | (1) 512K x 36 |
          |----------+----------------+----------------+---------------|
          |   12MB   |   (4) 1M x 9   |  (1) 1M x 36   |  (1) 1M x 36  |
          |----------+----------------+----------------+---------------|
          |   12MB   |      None      |  (1) 1M x 36   |  (1) 2M x 36  |
          |----------+----------------+----------------+---------------|
          |   12MB   |      None      |  (1) 2M x 36   |  (1) 1M x 36  |
          |----------+----------------+----------------+---------------|
          |   16MB   |   (4) 4M x 9   |      None      |     None      |
          |----------+----------------+----------------+---------------|
          |   16MB   |      None      |  (1) 4M x 36   |     None      |
          |----------+----------------+----------------+---------------|
          |   16MB   |      None      |      None      |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   17MB   |  (4) 256K x 9  |      None      |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   17MB   |   (4) 4M x 9   | (1) 256K x 36  |     None      |
          |----------+----------------+----------------+---------------|
          |   20MB   |   (4) 1M x 9   |  (1) 4M x 36   |     None      |
          |----------+----------------+----------------+---------------|
          |   20MB   |   (4) 1M x 9   |      None      |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   24MB   |   (4) 1M x 9   |  (1) 1M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   24MB   |   (4) 1M x 9   |  (1) 4M x 36   |  (1) 1M x 36  |
          |----------+----------------+----------------+---------------|
          |   32MB   |   (4) 4M x 9   |  (1) 4M x 36   |     None      |
          |----------+----------------+----------------+---------------|
          |   32MB   |   (4) 4M x 9   |      None      |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   32MB   |      None      |  (1) 4M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   32MB   |      None      |      None      |  (1) 8M x 36  |
          |----------+----------------+----------------+---------------|
          |   33MB   |  (4) 256K x 9  |  (1) 8M x 36   |     None      |
          |----------+----------------+----------------+---------------|
          |   34MB   |   (4) 4M x 9   |  (1) 4M x 36   | (1) 512K x 36 |
          |----------+----------------+----------------+---------------|
          |   36MB   |   (4) 4M x 9   |  (1) 1M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   36MB   |   (4) 1M x 9   |  (1) 4M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   48MB   |   (4) 4M x 9   |  (1) 4M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   48MB   |   (4) 4M x 9   |      None      |  (1) 8M x 36  |
          |----------+----------------+----------------+---------------|
          |   48MB   |      None      |  (1) 8M x 36   |  (1) 4M x 36  |
          |----------+----------------+----------------+---------------|
          |   64MB   |      None      |  (1) 8M x 36   |  (1) 8M x 36  |
          |----------+----------------+----------------+---------------|
          |   64MB   |      None      |  (1) 16M x 36  |     None      |
          |----------+----------------+----------------+---------------|
          |   65MB   |      None      | (1) 256K x 36  | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |   66MB   |      None      | (1) 512K x 36  | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |   68MB   |      None      |  (1) 1M x 36   | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |   72MB   |      None      |  (1) 2M x 36   | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |   80MB   |      None      |  (1) 4M x 36   | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |   96MB   |      None      |  (1) 8M x 36   | (1) 16M x 36  |
          |----------+----------------+----------------+---------------|
          |  128MB   |      None      |  (1) 16M x 36  | (1) 16M x 36  |
          |------------------------------------------------------------|
          | Note: Any combination of memory is valid. This table only  |
          | shows a sample of possible configurations.                 |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CACHE CONFIGURATION                     |
          |------------------------------------------------------------|
          |            Size            |              SL1              |
          |----------------------------+-------------------------------|
          |           128KB            |    128KB module installed     |
          |----------------------------+-------------------------------|
          |           256KB            |    256KB module installed     |
          |----------------------------+-------------------------------|
          |           512KB            |    512KB module installed     |
          |----------------------------+-------------------------------|
          |            1MB             |     1MB module installed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CPU SPEED SELECTION                     |
          |------------------------------------------------------------|
          |     Speed     |     JP3A     |     JP3B     |     JP3C     |
          |---------------+--------------+--------------+--------------|
          |     25MHz     |     Open     |     Open     |    Closed    |
          |---------------+--------------+--------------+--------------|
          |     33MHz     |    Closed    |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |     40MHz     |     Open     |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    50iMHz     |     Open     |     Open     |    Closed    |
          |---------------+--------------+--------------+--------------|
          |     50MHz     |    Closed    |     Open     |     Open     |
          |---------------+--------------+--------------+--------------|
          |    66iMHz     |    Closed    |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    75iMHz     |     Open     |     Open     |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    80iMHz     |     Open     |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    100iMHz    |    Closed    |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    120iMHz    |     Open     |    Closed    |    Closed    |
          |---------------+--------------+--------------+--------------|
          |    133iMHz    |    Closed    |    Closed    |    Closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     CPU TYPE SELECTION                     |
          |------------------------------------------------------------|
          |    Type     |   JP6   |   JP7   |  JP8A  |  JP8B  |  JP9A  |
          |-------------+---------+---------+--------+--------+--------|
          |   CX486DX   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  IBM486DX   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |   TI486DX   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  SGS486DX   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |   80486DX   |  Open   | Closed  | 2 & 3  |  Open  | 2 & 3  |
          |-------------+---------+---------+--------+--------+--------|
          |  AM486DX2   |  Open   | Closed  | 2 & 3  |  Open  | 2 & 3  |
          |-------------+---------+---------+--------+--------+--------|
          |    (SL)     | Closed  |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |  AM486DX2   |         |         |        |        |        |
          |-------------+---------+---------+--------+--------+--------|
          |  CX486DX2   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  IBM486DX2  |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  TI486DX2   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  SGS486DX2  |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  80486DX2   |  Open   | Closed  | 2 & 3  |  Open  | 2 & 3  |
          |-------------+---------+---------+--------+--------+--------|
          |  CX486DX4   |  Open   |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |     (A)     |         |         |        |        |        |
          |-------------+---------+---------+--------+--------+--------|
          |  CX486DX4   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  IBM486DX4  |  Open   |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |     (A)     |         |         |        |        |        |
          |-------------+---------+---------+--------+--------+--------|
          |  IBM486DX4  |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  TI486DX4   |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  SGS486DX4  |  Open   |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |     (A)     |         |         |        |        |        |
          |-------------+---------+---------+--------+--------+--------|
          |  SGS486DX4  |  Open   |  Open   |  Open  | 1 & 2  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |  AM486DX4   |  Open   | Closed  | 2 & 3  |  Open  | 2 & 3  |
          |-------------+---------+---------+--------+--------+--------|
          |    (SL)     | Closed  |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |  AM486DX4   |         |         |        |        |        |
          |-------------+---------+---------+--------+--------+--------|
          | SL80486DX4  |  Open   |  Open   | 2 & 3  |  Open  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |    P24D     |  Open   |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |   CX5X86    | Closed  |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |-------------+---------+---------+--------+--------+--------|
          |    AM X5    | Closed  |  Open   | 1 & 2  |  Open  | 1 & 2  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          | (A) = Intel pin out.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU TYPE SELECTION (CON’T)                 |
          |------------------------------------------------------------|
          |     Type      |   JP9B   | JP9C  | JP10A | JP10B  | JP10C  |
          |---------------+----------+-------+-------+--------+--------|
          |    CX486DX    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   IBM486DX    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |    TI486DX    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   SGS486DX    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |    80486DX    |   Open   | Open  | 3 & 4 |  Open  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   AM486DX2    |   Open   | Open  | 3 & 4 |  Open  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          | (SL) AM486DX2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   CX486DX2    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   IBM486DX2   |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   TI486DX2    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   SGS486DX2   |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   80486DX2    |   Open   | Open  | 3 & 4 |  Open  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          | CX486DX4 (A)  | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   CX486DX4    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          | IBM486DX4 (A) | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   IBM486DX4   |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   TI486DX4    |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          | SGS486DX4 (A) | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   SGS486DX4   |  1 & 2   | 2 & 3 | 3 & 4 | 2 & 3  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |   AM486DX4    |   Open   | Open  | 3 & 4 |  Open  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          | (SL) AM486DX4 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |  SL80486DX4   |  1 & 2   | Open  | 3 & 4 | 1 & 2  | 1 & 2, |
          |               |          |       |       |        | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |     P24D      | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |    CX5X86     | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |---------------+----------+-------+-------+--------+--------|
          |     AM X5     | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, | 1 & 2, |
          |               |   & 4    |       |       | 3 & 4  | 3 & 4  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          | (A) = Intel pin out.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU TYPE SELECTION (CON’T)                 |
          |------------------------------------------------------------|
          |     Type     |  JP11  | JP12A  | JP12B  |  JP13   |  JP14  |
          |--------------+--------+--------+--------+---------+--------|
          |   CX486DX    | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   IBM486DX   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   TI486DX    | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   SGS486DX   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   80486DX    |  Open  | 1 & 2  | 1 & 2  |  Open   |  Open  |
          |--------------+--------+--------+--------+---------+--------|
          |   AM486DX2   |  Open  | 1 & 2  | 2 & 3  |  Open   |  Open  |
          |--------------+--------+--------+--------+---------+--------|
          |     (SL)     |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |   AM486DX2   |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |   CX486DX2   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |  IBM486DX2   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   TI486DX2   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |  SGS486DX2   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   80486DX2   |  Open  | 1 & 2  | 1 & 2  |  Open   |  Open  |
          |--------------+--------+--------+--------+---------+--------|
          | CX486DX4 (A) |  Open  | 2 & 3  | 1 & 2  | Closed  | 2 & 3, |
          |              |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |   CX486DX4   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |  IBM486DX4   |  Open  | 2 & 3  | 1 & 2  | Closed  | 2 & 3, |
          |     (A)      |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |  IBM486DX4   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   TI486DX4   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |  SGS486DX4   |  Open  | 2 & 3  | 1 & 2  | Closed  | 2 & 3, |
          |     (A)      |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |  SGS486DX4   | 2 & 3  | 2 & 3  | 1 & 2  |  Open   | 1 & 2, |
          |              |        |        |        |         | 3 & 4  |
          |--------------+--------+--------+--------+---------+--------|
          |   AM486DX4   |  Open  | 1 & 2  | 2 & 3  |  Open   |  Open  |
          |--------------+--------+--------+--------+---------+--------|
          |     (SL)     |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |   AM486DX4   |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |  SL80486DX4  |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |              |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |     P24D     |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |              |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |    CX5X86    |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |              |        |        |        |         | 4 & 5  |
          |--------------+--------+--------+--------+---------+--------|
          |    AM X5     |  Open  | 1 & 2  | 1 & 2  |  Open   | 2 & 3, |
          |              |        |        |        |         | 4 & 5  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          | (A) = Intel pin out.                                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   CPU VOLTAGE SELECTION                    |
          |------------------------------------------------------------|
          |  Voltage  |   JP4    |  JP5A   |  JP5B   |  JP5C  |  JP5D  |
          |-----------+----------+---------+---------+--------+--------|
          |   3.3v    |  Closed  |  1 & 2  |  1 & 2  | 1 & 2  | 1 & 2  |
          |-----------+----------+---------+---------+--------+--------|
          |    4v     |   Open   |  1 & 2  |  1 & 2  | 1 & 2  | 1 & 2  |
          |-----------+----------+---------+---------+--------+--------|
          |    5v     |  Closed  |  2 & 3  |  2 & 3  | 2 & 3  | 2 & 3  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+