EVEREX SYSTEMS, INC.
====================

   TEMPO 486-25/33/50 EV-18173

   Processor    80486SX/80487SX/80486DX                           
   Processor    25/33/50MHZ                                       
   Speed        
   Chip Set     C & T/Suntac                                      
   Max. onboard 32MB                                              
   DRAM         
   SRAM Cache   32/64KB                                           
   BIOS         AMI                                               
   Dimensions   330mm x 218mm                                     
   I/O Options  Floppy drive interface, front panel connector,    
                IDE interface                                     
                                                                  
                parallel port, serial ports (2)                   
   NPU Options  None                                              

<gopher://bitreich.org/I/th99/m/E-H/31396-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose              | Location | Purpose       | Location |
   |----------------------+----------+---------------+----------|
   | Parallel Port        |   CN1    | Reset switch  |    J1    |
   |----------------------+----------+---------------+----------|
   | Serial Port (COM1)   |   CN2    | Speaker       |    J3    |
   |----------------------+----------+---------------+----------|
   | Serial Port (COM2)   |   CN3    | Front panel   |   J10    |
   |                      |          | connector     |          |
   |----------------------+----------+---------------+----------|
   | IDE interface        |   CN4    | IDE interface |   J13    |
   |                      |          | LED           |          |
   |----------------------+----------+---------------+----------|
   | Floppy drive         |   CN5    | Unknown       |   J18    |
   | interface            |          |               |          |
   |------------------------------------------------------------|
   | Note:The location of J1 is unknown.                        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                USER CONFIGURABLE SETTINGS                  |
   |------------------------------------------------------------|
   |            Function             | Jumper/Switch | Position |
   |---------------------------------+---------------+----------|
   |>> | Factory configured - do not |      JP1      | Unknown  |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |      JP2      | Unknown  |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |      JP3      | Unknown  |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |      JP4      | Unknown  |
   |   | alter                       |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | I/O bus speed select 1 wait |      JP5      |   Open   |
   |   | state                       |               |          |
   |---+-----------------------------+---------------+----------|
   |   | I/O bus speed select 0 wait |      JP5      |  Closed  |
   |   | states                      |               |          |
   |---+-----------------------------+---------------+----------|
   |>> | CMOS memory normal          |      JP8      | Unknown  |
   |   | operation                   |               |          |
   |---+-----------------------------+---------------+----------|
   |   | CMOS memory clear           |     JP11      | Unknown  |
   |---+-----------------------------+---------------+----------|
   |>> | Factory configured - do not |     JP11      | Unknown  |
   |   | alter                       |               |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    DRAM CONFIGURATION                      |
   |------------------------------------------------------------|
   |       Size       |       Bank 0       |       Bank 1       |
   |------------------+--------------------+--------------------|
   |       1MB        |    (4) 256K x 9    |        NONE        |
   |------------------+--------------------+--------------------|
   |       2MB        |    (4) 256K x 9    |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       4MB        |     (4) 1M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       5MB        |     (4) 1M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       17MB       |     (4) 4M x 9     |    (4) 256K x 9    |
   |------------------+--------------------+--------------------|
   |       20MB       |     (4) 1M x 9     |     (4) 4M x 9     |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |   Size    |     Cache     |      TAG      | Dirty Bit (DB) |
   |-----------+---------------+---------------+----------------|
   |   32KB    |  (4) 8K x 8   |  (1) 8K x 8   |  (1) 16K x 1   |
   |-----------+---------------+---------------+----------------|
   |   64KB    |  (4) 16K x 8  |  (1) 16K x 8  |  (1) 16K x 1   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                COM1 DTE/DCE CONFIGURATION                  |
   |------------------------------------------------------------|
   |            Mode            |       Jumper Block COM1       |
   |----------------------------+-------------------------------|
<gopher://bitreich.org/I/th99/m/E-H/31396-2.png>
   |            DCE             |                       |
   |----------------------------+-------------------------------|
<gopher://bitreich.org/I/th99/m/E-H/31396-3.png>
   |            DTE             |                       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                COM2 DTE/DCE CONFIGURATION                  |
   |------------------------------------------------------------|
   |            Mode            |       Jumper Block COM2       |
   |----------------------------+-------------------------------|
<gopher://bitreich.org/I/th99/m/E-H/31396-4.png>
   |            DCE             |                       |
   |----------------------------+-------------------------------|
<gopher://bitreich.org/I/th99/m/E-H/31396-5.png>
   |            DTE             |                       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               CACHE RESISTOR CONFIGURATION                 |
   |------------------------------------------------------------|
   |       Size       |        TR1         |        TR2         |
   |------------------+--------------------+--------------------|
   |       32KB       |   Not Installed    |     Installed      |
   |------------------+--------------------+--------------------|
   |       64KB       |     Installed      |   Not Installed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  CPU TYPE CONFIGURATION                    |
   |------------------------------------------------------------|
   |        TYPE        |        JP7         |       JP9        |
   |--------------------+--------------------+------------------|
   |      80486SX       | Pins 2 & 3 closed  |       Open       |
   |--------------------+--------------------+------------------|
   |      80487SX       | Pins 2 & 3 closed  |       Open       |
   |--------------------+--------------------+------------------|
   |      80486DX       | Pins 1 & 2 closed  |      Closed      |
   +------------------------------------------------------------+