Premium/386-16 Motherboard                          AST Part Number 202332-001

The Motherboard of the 386-16 System has seven bus expansion slots, six of
which can accommodate 16-bit adapter boards and one that will only accept
8-bit adapters.  Two of the 16-bit slots can also accept AST FASTslot boards.
One of these will always be used by the 386-16 CPU Board (P/N 202323-001).
The bus speed on this system is 8MHz, one wait state.  This motherboard comes
standard with one serial port and one parallel port.  Up to three floppy
drives can be connected directly to the motherboard


JUMPERS/CONNECTIONS

  J22 - Battery connection         J19 - Floppy A/B connection
  J23 - LED/Reset connection       J20 - Third floppy connection
  J24 - Speaker connection

  E33 - Install jumper to disable on-board floppy controller
        Leave open to connect floppies to motherboard


I/O PORT ADDRESSING

  PORT    IRQ  HEX      JUMPER
  =============================
  COM1     4   3F8    E23 & E28 (default)
  COM2     3   2F8    E22 & E29

  LPT1     7   3BC    E24 & E25
  LPT1/2   7   378    E24 & E26 (default)
  LPT2/3   5   278    E25 & E27


JUMPER AND CONNECTOR LOCATIONS
ͻ
                                           
                                 
                                 
                                 
                   
                   
                                 
       J23*   *J24                                     *I/O    
                                                       *PORT   
                                                       *JUMPERS
                                                               
                                J19* *J20                      
                                   * *                         
                                   * *                         
                                   * *                         
                                        *E33                   
                                                       *J22    
ͼ
