ACHME COMPUTER, INC.
====================

   MS-5170

   Device Type      Mainboard                                     
   Processor        CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium 
   Processor Speed  Unidentified                                  
   Chip Set         Intel                                         
   Video Chip Set   None                                          
   Maximum Onboard  256MB (EDO & SDRAM supported)                 
   Memory           
   Maximum Video    None                                          
   Memory           
   Cache            512KB                                         
   BIOS             Unidentified                                  
   Dimensions       220mm x 220mm                                 
   I/O Options      32-bit PCI slots (4), floppy drive interface, 
                    green PC connector, IDE interfaces (2),       
                    parallel port, PS/2 mouse interface, serial   
                    ports (2), IR connector, USB connector, ATX   
                    power connector                               
   NPU Options      None                                          

<gopher://bitreich.org/I/th99/m/A-B/34726-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose         |  Location   | Purpose       |  Location  |
   |-----------------+-------------+---------------+------------|
   | ATX power       |     ATX     | Speaker       | JFP1/pins  |
   | connector       |             |               |  19 - 22   |
   |-----------------+-------------+---------------+------------|
   | Serial port 2   |     CN1     | IDE interface | JFP1/pins  |
   |                 |             | LED           |  12 & 24   |
   |-----------------+-------------+---------------+------------|
   | Serial port 1   |     CN2     | IR connector  |    JIR2    |
   |-----------------+-------------+---------------+------------|
   | Parallel port   |     CN3     | Green PC      |    JGS1    |
   |                 |             | connector     |            |
   |-----------------+-------------+---------------+------------|
   | Floppy drive    |     CN4     | Green PC LED  |    JGL1    |
   | interface       |             |               |            |
   |-----------------+-------------+---------------+------------|
   | IDE interface 2 |     CN5     | PS/2 mouse    |    JMS1    |
   |                 |             | interface     |            |
   |-----------------+-------------+---------------+------------|
   | IDE interface 1 |     CN6     | Soft off      |   JRMS1    |
   |                 |             | power supply  |            |
   |-----------------+-------------+---------------+------------|
   | Chassis fan     |    JFAN     | Soft off      |   JRMS2    |
   | power           |             | power supply  |            |
   |-----------------+-------------+---------------+------------|
   | Turbo LED       | JFP1/pins 2 | 32-bit PCI    | PC1 - PC4  |
   |                 |     & 3     | slots         |            |
   |-----------------+-------------+---------------+------------|
   | Reset switch    | JFP1/pins 9 | Chassis fan   |    PFAN    |
   |                 |    & 10     | power         |            |
   |-----------------+-------------+---------------+------------|
   | Power LED &     |  JFP1/pins  | USB connector |    USB     |
   | keylock         |   13 - 17   |               |            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function               | Label |   Position   |
   |-------------------------------------+-------+--------------|
   |>> | Factory configured - do not     |  J3   | Unidentified |
   |   | alter                           |       |              |
   |---+---------------------------------+-------+--------------|
   |>> | Factory configured - do not     | JBAT  | Unidentified |
   |   | alter                           |       |              |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     SIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |            Size            |            Bank 0             |
   |----------------------------+-------------------------------|
   |            8MB             |          (2) 1M x 36          |
   |----------------------------+-------------------------------|
   |            16MB            |          (2) 2M x 36          |
   |----------------------------+-------------------------------|
   |            32MB            |          (2) 4M x 36          |
   |----------------------------+-------------------------------|
   |            64MB            |          (2) 8M x 36          |
   |----------------------------+-------------------------------|
   |           128MB            |         (2) 16M x 36          |
   |------------------------------------------------------------|
   | Note: Board accepts EDO memory.                            |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     DIMM CONFIGURATION                     |
   |------------------------------------------------------------|
   |       Size       |       Bank 1       |       Bank 2       |
   |------------------+--------------------+--------------------|
   |       8MB        |    (1) 1M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 2M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       16MB       |    (1) 1M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       24MB       |    (1) 2M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 4M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       32MB       |    (1) 2M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       40MB       |    (1) 4M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       48MB       |    (1) 4M x 64     |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 8M x 64     |        None        |
   |------------------+--------------------+--------------------|
   |       64MB       |    (1) 4M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |       72MB       |    (1) 8M x 64     |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |       80MB       |    (1) 8M x 64     |    (1) 2M x 64     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 DIMM CONFIGURATION (CON'T)                 |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       96MB       |    (1) 8M x 64     |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 16M x 64    |        None        |
   |------------------+--------------------+--------------------|
   |      128MB       |    (1) 8M x 64     |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      136MB       |    (1) 16M x 64    |    (1) 1M x 64     |
   |------------------+--------------------+--------------------|
   |      144MB       |    (1) 16M x 64    |    (1) 2M x 64     |
   |------------------+--------------------+--------------------|
   |      160MB       |    (1) 16M x 64    |    (1) 4M x 64     |
   |------------------+--------------------+--------------------|
   |      192MB       |    (1) 16M x 64    |    (1) 8M x 64     |
   |------------------+--------------------+--------------------|
   |      256MB       |    (1) 16M x 64    |    (1) 16M x 64    |
   |------------------------------------------------------------|
   | Note: Board accepts SDRAM memory.                          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   | Note: 512KB cache is factory installed and is not          |
   | configurable. The location is unidentified.                |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU BUS SPEED SELECTION                   |
   |------------------------------------------------------------|
   |       Speed        |       SW1/4        |      SW1/5       |
   |--------------------+--------------------+------------------|
   |       55MHz        |         On         |        On        |
   |--------------------+--------------------+------------------|
   |       60MHz        |         On         |       Off        |
   |--------------------+--------------------+------------------|
   |       66MHz        |        Off         |       Off        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU MULTIPLIER SELECTION                  |
   |------------------------------------------------------------|
   |  Multiplier   |    SW1/1     |    SW1/2     |    SW1/3     |
   |---------------+--------------+--------------+--------------|
   |     1.5x      |     Off      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |      2x       |      On      |     Off      |     Off      |
   |---------------+--------------+--------------+--------------|
   |     2.5x      |      On      |      On      |     Off      |
   |---------------+--------------+--------------+--------------|
   |      3x       |     Off      |      On      |     Off      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VOLTAGE SELECTION                    |
   |------------------------------------------------------------|
   | Voltage  | V core  |   JV1   |   JV2   |   JV4   |   JV5   |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  2.0v   |  Open   |  Open   |  Open   |  Open   |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  2.1v   | Closed  |  Open   |  Open   |  Open   |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  2.5v   | Closed  |  Open   | Closed  |  Open   |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  2.8v   |  Open   |  Open   |  Open   | Closed  |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  2.9v   | Closed  |  Open   |  Open   | Closed  |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  3.2v   |  Open   |  Open   | Closed  | Closed  |
   |----------+---------+---------+---------+---------+---------|
   |   3.3v   |  3.3v   | Closed  |  Open   | Closed  | Closed  |
   |----------+---------+---------+---------+---------+---------|
   |   3.5v   |  3.5v   | Closed  | Closed  | Closed  | Closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                   CPU VOLTAGE SELECTION                    |
   |------------------------------------------------------------|
   |          Setting           |              JV3              |
   |----------------------------+-------------------------------|
   |           Single           |       Pins 1 & 2 closed       |
   |----------------------------+-------------------------------|
   |            Dual            |       Pins 2 & 3 closed       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                      POWER SELECTION                       |
   |------------------------------------------------------------|
   |                Setting                 |        J2         |
   |----------------------------------------+-------------------|
   | System always off when AC power is on  | Pins 1 & 2 closed |
   |----------------------------------------+-------------------|
   |   System goes to last status when AC   | Pins 2 & 3 closed |
   |    power on for internal test only     |                   |
   |----------------------------------------+-------------------|
   |  System always on when AC power is on  |       Open        |
   +------------------------------------------------------------+