J-MARK COMPUTER CORPORATION
===========================

   JET-386E CACHE

   Processor             80386DX                                  
   Processor Speed       33/40MHz                                 
   Chip Set              ETEQ                                     
   Max. Onboard DRAM     32MB                                     
   Cache                 64/128/256KB                             
   BIOS                  AMI/Award                                
   Dimensions            254mm x 220mm                            
   I/O Options           None                                     
   NPU Options           80387/3167                               

<gopher://bitreich.org/I/th99/m/I-L/31076-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   | Purpose             | Location | Purpose        | Location |
   |---------------------+----------+----------------+----------|
   | External battery    |   J20    | Reset switch   |   RST    |
   |---------------------+----------+----------------+----------|
   | Power LED & keylock |   KEY    | Speaker        |   SPK    |
   |---------------------+----------+----------------+----------|
   | Turbo LED           |   LED    | Turbo switch   |   TSW    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Jumper |   Position   |
   |------------------------------------+--------+--------------|
   |>> | Monitor type select color      |  JP3   |    Closed    |
   |---+--------------------------------+--------+--------------|
   |   | Monitor type select monochrome |  JP3   |     Open     |
   |---+--------------------------------+--------+--------------|
   |>> | CMOS memory normal operation   |  JP5   |  pins 1 & 2  |
   |   |                                |        |    closed    |
   |---+--------------------------------+--------+--------------|
   |   | CMOS memory clear              |  JP5   |  pins 2 & 3  |
   |   |                                |        |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     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        |
   |------------------+--------------------+--------------------|
   |       8MB        |     (4) 1M x 9     |     (4) 1M x 9     |
   |------------------+--------------------+--------------------|
   |       16MB       |     (4) 4M x 9     |        NONE        |
   |------------------+--------------------+--------------------|
   |       32MB       |     (4) 4M x 9     |     (4) 4M x 9     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                    CACHE CONFIGURATION                     |
   |------------------------------------------------------------|
   |    Size    |    Bank 0     |    Bank 1     |      TAG      |
   |------------+---------------+---------------+---------------|
   |    64KB    |  (4) 8K x 8   |  (4) 8K x 8   |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   128KB    |  (4) 32K x 8  |     NONE      |  (1) 8K x 8   |
   |------------+---------------+---------------+---------------|
   |   256KB    |  (4) 32K x 8  |  (4) 32K x 8  |  (1) 32K x 8  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 CACHE JUMPER CONFIGURATION                 |
   |------------------------------------------------------------|
   | Size  |   J6   |  J7  | J8  | J9  |  J12   |  J13   | J15  |
   |-------+--------+------+-----+-----+--------+--------+------|
   | 64KB  |  Open  | 1 &  | 1 & | 2 & |  Open  |  Open  | 1 &  |
   |       |        |  2   |  2  |  3  |        |        |  2   |
   |-------+--------+------+-----+-----+--------+--------+------|
   | 128KB | Closed | 1 &  | 2 & | 2 & |  Open  | Closed | 4 &  |
   |       |        |  2   |  3  |  3  |        |        |  5   |
   |-------+--------+------+-----+-----+--------+--------+------|
   | 256KB | Closed | 2 &  | 2 & | 2 & | Closed | Closed | 5 &  |
   |       |        |  3   |  3  |  3  |        |        |  6   |
   |------------------------------------------------------------|
   | Note:Pins designated should be in the closed position.     |
   +------------------------------------------------------------+