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       # UNIDENTIFIED
       
          80486 VIP
       
       Processor  CX486M6/80486SX/SL80486SX/CX486M7/U5/80486DX/AM486DX2/              
                                                                                      
                  AM486DX4/SL80486DX4/P24D                                            
       Processor  25/33/40/50/66(internal)/75(internal)/80(internal)/100(internal)MHz 
       Speed      
       Chip Set   Unidentified                                                        
       Max.       256MB                                                               
       Onboard    
       DRAM       
       Cache      64/128/256/512/1024KB                                               
       BIOS       AMI                                                                 
       Dimensions 254mm x 218mm                                                       
       I/O        32-bit VESA local bus slots (2), 32-bit PCI slots (4), IDE          
       Options    interfaces (2)                                                      
       NPU        None                                                                
       Options    
       
   IMG IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          | Purpose          | Location | Purpose           | Location |
          |------------------+----------+-------------------+----------|
          | External battery |   JP3    | Turbo LED         |   JP20   |
          |------------------+----------+-------------------+----------|
          | Green PC         |   JP4    | IDE interface LED |   JP40   |
          | connector        |          |                   |          |
          | (monitor)        |          |                   |          |
          |------------------+----------+-------------------+----------|
          | Turbo switch     |   JP14   | Chassis fan power |   JP41   |
          |------------------+----------+-------------------+----------|
          | Reset switch     |   JP15   | 32-bit PCI slots  |  PCI1 -  |
          |                  |          |                   |   PCI4   |
          |------------------+----------+-------------------+----------|
          | Green PC         |   JP16   | IDE interface     |    S1    |
          | connector        |          | (primary)         |          |
          |------------------+----------+-------------------+----------|
          | Power LED &      |   JP18   | IDE interface     |    S2    |
          | keylock          |          | (secondary)       |          |
          |------------------+----------+-------------------+----------|
          | Speaker          |   JP19   | 32-bit VESA local |  SL1 &   |
          |                  |          | bus slots         |   SL2    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |               Function               | Jumper |  Position  |
          |--------------------------------------+--------+------------|
          |   | Flash BIOS voltage select 5v     |  JP2   |    Open    |
          |---+----------------------------------+--------+------------|
          |   | Flash BIOS voltage select 12v    |  JP2   |   Closed   |
          |---+----------------------------------+--------+------------|
          | » | Battery type select internal     |  JP3   | pins 2 & 3 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          |   | Battery type select external     |  JP3   |   Closed   |
          |---+----------------------------------+--------+------------|
          |   | CMOS memory clear                |  JP3   | pins 3 & 4 |
          |   |                                  |        |   closed   |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP9   |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP10  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP11  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP12  |    N/A     |
          |   | alter                            |        |            |
          |---+----------------------------------+--------+------------|
          | » | Factory configured - do not      |  JP13  |    N/A     |
          |   | alter                            |        |            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     DRAM CONFIGURATION                     |
          |------------------------------------------------------------|
          | Size |   Bank 0    |   Bank 1    |   Bank 2   |   Bank 3   |
          |------+-------------+-------------+------------+------------|
          | 1MB  | (1) 256K x  |    NONE     |    NONE    |    NONE    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (1) 256K x  | (1) 256K x  |    NONE    |    NONE    |
          |      |     36      |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 2MB  | (1) 512K x  |    NONE     |    NONE    |    NONE    |
          |      |     36      |             |            |            |
          |------+-------------+-------------+------------+------------|
          | 3MB  | (1) 256K x  | (1) 256K x  | (1) 256K x |    NONE    |
          |      |     36      |     36      |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 256K x  | (1) 256K x  | (1) 256K x | (1) 256K x |
          |      |     36      |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 512K x  | (1) 512K x  |    NONE    |    NONE    |
          |      |     36      |     36      |            |            |
          |------+-------------+-------------+------------+------------|
          | 4MB  | (1) 1M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 5MB  | (1) 1M x 36 |    NONE     | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (1) 1M x 36 |    NONE     | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 6MB  | (1) 1M x 36 |    NONE     | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 | (1) 1M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 512K x  | (1) 512K x  | (1) 512K x | (1) 512K x |
          |      |     36      |     36      |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 1M x 36 |    NONE     | (1) 512K x | (1) 512K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 8MB  | (1) 2M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 9MB  | (1) 2M x 36 |    NONE     | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 10MB | (1) 2M x 36 |    NONE     | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 512K x | (1) 512K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 12MB | (1) 2M x 36 |    NONE     |  (1) 1M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 1M x 36 | (1) 1M x 36 |  (1) 1M x  |  (1) 1M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 4M x 36 |    NONE     |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 16MB | (1) 2M x 36 | (1) 2M x 36 |    NONE    |    NONE    |
          |------+-------------+-------------+------------+------------|
          | 17MB | (1) 4M x 36 |    NONE     | (1) 256K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 4M x 36 |    NONE     | (1) 256K x | (1) 256K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 18MB | (1) 4M x 36 |    NONE     | (1) 512K x |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 1M x 36 |    NONE     |  (1) 2M x  |  (1) 2M x  |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 1M x 36 |    NONE     |  (1) 4M x  |    NONE    |
          |      |             |             |     36     |            |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 2M x 36 | (1) 2M x 36 | (1) 512K x | (1) 512K x |
          |      |             |             |     36     |     36     |
          |------+-------------+-------------+------------+------------|
          | 20MB | (1) 4M x 36 |    NONE     | (1) 512K x | (1) 512K x |
          |      |             |             |     36     |     36     |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 DRAM CONFIGURATION (CON’T)                 |
          |------------------------------------------------------------|
          | Size  |   Bank 0    |  Bank 1   |   Bank 2    |   Bank 3   |
          |-------+-------------+-----------+-------------+------------|
          | 20MB  | (1) 2M x 36 | (1) 2M x  | (1) 1M x 36 |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 20MB  | (1) 4M x 36 |   NONE    | (1) 1M x 36 |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 24MB  | (1) 4M x 36 |   NONE    | (1) 1M x 36 |  (1) 1M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 24MB  | (1) 4M x 36 |   NONE    | (1) 2M x 36 |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 24MB  | (1) 2M x 36 | (1) 2M x  | (1) 2M x 36 |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 24MB  | (1) 2M x 36 | (1) 2M x  | (1) 1M x 36 |  (1) 1M x  |
          |       |             |    36     |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 32MB  | (1) 4M x 36 |   NONE    | (1) 2M x 36 |  (1) 2M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 32MB  | (1) 2M x 36 | (1) 2M x  | (1) 2M x 36 |  (1) 2M x  |
          |       |             |    36     |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 32MB  | (1) 4M x 36 | (1) 4M x  |    NONE     |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 32MB  | (1) 8M x 36 |   NONE    |    NONE     |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 36MB  | (1) 1M x 36 |   NONE    | (1) 4M x 36 |  (1) 4M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 36MB  | (1) 1M x 36 |   NONE    | (1) 8M x 36 |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 40MB  | (1) 8M x 36 |   NONE    | (1) 2M x 36 |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 40MB  | (1) 8M x 36 |   NONE    | (1) 1M x 36 |  (1) 1M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 48MB  | (1) 4M x 36 |   NONE    | (1) 8M x 36 |    NONE    |
          |-------+-------------+-----------+-------------+------------|
          | 48MB  | (1) 4M x 36 | (1) 4M x  | (1) 4M x 36 |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 48MB  | (1) 4M x 36 |   NONE    | (1) 4M x 36 |  (1) 4M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 48MB  | (1) 2M x 36 | (1) 2M x  | (1) 4M x 36 |  (1) 4M x  |
          |       |             |    36     |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 64MB  | (1) 4M x 36 | (1) 4M x  | (1) 4M x 36 |  (1) 4M x  |
          |       |             |    36     |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 64MB  | (1) 8M x 36 | (1) 8M x  |    NONE     |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 64MB  |  (1) 16M x  |   NONE    |    NONE     |    NONE    |
          |       |     36      |           |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 65MB  |  (1) 16M x  |   NONE    | (1) 256K x  |    NONE    |
          |       |     36      |           |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 65MB  | (1) 8M x 36 | (1) 8M x  | (1) 256K x  |    NONE    |
          |       |             |    36     |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 66MB  |  (1) 16M x  |   NONE    | (1) 256K x  | (1) 256K x |
          |       |     36      |           |     36      |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 66MB  |  (1) 16M x  |   NONE    | (1) 512K x  |    NONE    |
          |       |     36      |           |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 68MB  | (1) 1M x 36 |   NONE    | (1) 8M x 36 |  (1) 8M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 68MB  | (1) 1M x 36 |   NONE    |  (1) 16M x  |    NONE    |
          |       |             |           |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 68MB  |  (1) 16M x  |   NONE    | (1) 512K x  | (1) 512K x |
          |       |     36      |           |     36      |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 68MB  |  (1) 16M x  |   NONE    | (1) 1M x 36 |    NONE    |
          |       |     36      |           |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 72MB  |  (1) 16M x  |   NONE    | (1) 1M x 36 |  (1) 1M x  |
          |       |     36      |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 72MB  |  (1) 16M x  |   NONE    | (1) 2M x 36 |    NONE    |
          |       |     36      |           |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 80MB  | (1) 4M x 36 |   NONE    | (1) 8M x 36 |  (1) 8M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 80MB  | (1) 4M x 36 |   NONE    |  (1) 16M x  |    NONE    |
          |       |             |           |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 80MB  |  (1) 16M x  |   NONE    | (1) 2M x 36 |  (1) 2M x  |
          |       |     36      |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 80MB  |  (1) 16M x  |   NONE    | (1) 4M x 36 |    NONE    |
          |       |     36      |           |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 96MB  |  (1) 16M x  |   NONE    | (1) 8M x 36 |    NONE    |
          |       |     36      |           |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 96MB  | (1) 8M x 36 | (1) 8M x  | (1) 8M x 36 |    NONE    |
          |       |             |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 96MB  | (1) 8M x 36 |   NONE    | (1) 8M x 36 |  (1) 8M x  |
          |       |             |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 96MB  |  (1) 16M x  |   NONE    | (1) 4M x 36 |  (1) 4M x  |
          |       |     36      |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 128MB |  (1) 16M x  |   NONE    | (1) 8M x 36 |  (1) 8M x  |
          |       |     36      |           |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 128MB |  (1) 16M x  | (1) 16M x |    NONE     |    NONE    |
          |       |     36      |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 129MB |  (1) 16M x  | (1) 16M x | (1) 256K x  |    NONE    |
          |       |     36      |    36     |     36      |            |
          |-------+-------------+-----------+-------------+------------|
          | 144MB |  (1) 16M x  | (1) 16M x | (1) 2M x 36 |  (1) 2M x  |
          |       |     36      |    36     |             |     36     |
          |-------+-------------+-----------+-------------+------------|
          | 160MB |  (1) 16M x  | (1) 16M x | (1) 8M x 36 |    NONE    |
          |       |     36      |    36     |             |            |
          |-------+-------------+-----------+-------------+------------|
          | 256MB |  (1) 16M x  | (1) 16M x |  (1) 16M x  | (1) 16M x  |
          |       |     36      |    36     |     36      |     36     |
          +------------------------------------------------------------+
       
       
       
          +------------------------------------------------------------+
          |                   CPU TYPE CONFIGURATION                   |
          |------------------------------------------------------------|
          |    Type    |   JP25    |   JP26   |  JP27  | JP28  | JP29  |
          |------------+-----------+----------+--------+-------+-------|
          |  CX486M6   |   2 & 3   |   Open   | 1 & 2  | 2 & 3 | 1 & 2 |
          |------------+-----------+----------+--------+-------+-------|
          |  80486SX   |   2 & 3   |   Open   |  Open  | Open  | 2 & 3 |
          |------------+-----------+----------+--------+-------+-------|
          | SL80486SX  |   2 & 3   |   Open   | 1 & 2  | Open  | 1 & 2 |
          |------------+-----------+----------+--------+-------+-------|
          |  CX486M7   | 1 & 2, 3  |  3 & 4   | 1 & 2  | 2 & 3 | 1 & 2 |
          |            |    & 4    |          |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          |     U5     |   2 & 3   | 1 & 2, 3 | 2 & 3  | Open  | 2 & 3 |
          |            |           |   & 4    |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          |  80486DX   | 1 & 2, 3  |  3 & 4   |  Open  | Open  | 2 & 3 |
          |            |    & 4    |          |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          |  AM486DX2  | 1 & 2, 3  |  3 & 4   |  Open  | Open  | 2 & 3 |
          |            |    & 4    |          |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          |  AM486DX4  | 1 & 2, 3  |  3 & 4   |  Open  | Open  | 2 & 3 |
          |            |    & 4    |          |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          | SL80486DX4 | 1 & 2, 3  |  3 & 4   | 1 & 2  | Open  | 1 & 2 |
          |            |    & 4    |          |        |       |       |
          |------------+-----------+----------+--------+-------+-------|
          |    P24D    | 1 & 2, 3  |  3 & 4   | 1 & 2, | 3 & 4 | 1 & 2 |
          |            |    & 4    |          | 3 & 4  |       |       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU TYPE CONFIGURATION (CON’T)               |
          |------------------------------------------------------------|
          |    Type    |     JP30     |  JP31  |     JP32     |  JP33  |
          |------------+--------------+--------+--------------+--------|
          |  CX486M6   |    2 & 3     | 2 & 3  | 1 & 2, 3 & 4 |  Open  |
          |------------+--------------+--------+--------------+--------|
          |  80486SX   |     Open     |  Open  |     Open     | Closed |
          |------------+--------------+--------+--------------+--------|
          | SL80486SX  |    1 & 2     |  Open  | 2 & 3, 4 & 5 |  Open  |
          |------------+--------------+--------+--------------+--------|
          |  CX486M7   |    2 & 3     | 2 & 3  | 1 & 2, 3 & 4 |  Open  |
          |------------+--------------+--------+--------------+--------|
          |     U5     |     Open     | 3 & 4  |     Open     | Closed |
          |------------+--------------+--------+--------------+--------|
          |  80486DX   |     Open     |  Open  |     Open     | Closed |
          |------------+--------------+--------+--------------+--------|
          |  AM486DX2  |     Open     |  Open  |     Open     | Closed |
          |------------+--------------+--------+--------------+--------|
          |  AM486DX4  |     Open     |  Open  |     Open     | Closed |
          |------------+--------------+--------+--------------+--------|
          | SL80486DX4 |    1 & 2     |  Open  | 2 & 3, 4 & 5 |  Open  |
          |------------+--------------+--------+--------------+--------|
          |    P24D    | 1 & 2, 3 & 4 |  Open  | 2 & 3, 4 & 5 |  Open  |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               CPU TYPE CONFIGURATION (CON’T)               |
          |------------------------------------------------------------|
          |    Type    |   JP35    |   JP36    |   JP37    |   JP38    |
          |------------+-----------+-----------+-----------+-----------|
          |  CX486M6   |   1 & 2   |   Open    |   1 & 2   |   2 & 3   |
          |------------+-----------+-----------+-----------+-----------|
          |  80486SX   |   Open    |   2 & 3   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          | SL80486SX  |   Open    |   2 & 3   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          |  CX486M7   |   1 & 2   |   Open    |   1 & 2   |   2 & 3   |
          |------------+-----------+-----------+-----------+-----------|
          |     U5     |   Open    |   2 & 3   |   2 & 3   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          |  80486DX   |   Open    |   2 & 3   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          |  AM486DX2  |   Open    |   2 & 3   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          |  AM486DX4  |   Open    |   1 & 2   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          | SL80486DX4 |   Open    |   2 & 3   |   1 & 2   |   1 & 2   |
          |------------+-----------+-----------+-----------+-----------|
          |    P24D    |   Open    |   1 & 2   |   1 & 2   |   1 & 2   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                  CPU SPEED CONFIGURATION                   |
          |------------------------------------------------------------|
          |     Speed     |     JP6      |     JP7      |     JP8      |
          |---------------+--------------+--------------+--------------|
          |     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    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |       CPU SPEED SELECT CONFIGURATION (80486DX4 ONLY)       |
          |------------------------------------------------------------|
          |            Speed            |             JP34             |
          |-----------------------------+------------------------------|
          |             2X              |            Closed            |
          |-----------------------------+------------------------------|
          |             3X              |             Open             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 CPU VOLTAGE CONFIGURATION                  |
          |------------------------------------------------------------|
          |  Voltage  |  JP21   |  JP22   |  JP23   |  JP24  |  JP42   |
          |-----------+---------+---------+---------+--------+---------|
          |   3.3 v   |  1 & 2  |  1 & 2  |  1 & 2  | 1 & 2  | Closed  |
          |-----------+---------+---------+---------+--------+---------|
          |    4 v    |  1 & 2  |  1 & 2  |  1 & 2  | 1 & 2  |  Open   |
          |-----------+---------+---------+---------+--------+---------|
          |    5 v    |  2 & 3  |  2 & 3  |  2 & 3  | 2 & 3  | Closed  |
          |------------------------------------------------------------|
          | Note: Pins designated should be in the closed position.    |
          +------------------------------------------------------------+