Rampage!                                            AST Part Number 202073-002

The Rampage is a memory enhancement board designed for use with the IBM PC,
XT, and 100% compatibles running at a speed of 4.77MHz.  The Rampage can be
populated from 256K to 2048K using industry standard 256K DRAM chips of at
least 150ns speed.  The memory standards supported by the Rampage include
conventional (640K base), LIM 3.2, EEMS, and LIM 4.0.  Extended memory can be
emulated by using the REX.SYS device driver.  In order to access any
non-coventional memory, the REMM.SYS device driver must be used.


SWITCH SETTINGS

    (SW1 has eight switches; SW2 has four switches)

    BASE I/O ADDRESS

               208  218  258  268  2A8  2B8  2E8
               ---  ---  ---  ---  ---  ---  ---
        SW1-1   ON   ON   ON   ON  OFF  OFF  OFF
        SW1-2   ON   ON  OFF  OFF   ON   ON  OFF
        SW1-3   ON   ON   ON  OFF  OFF  OFF  OFF
        SW1-4   ON  OFF  OFF   ON   ON  OFF   ON


    BANKS AVAILABLE AS BASE (640K) MEMORY

        BANK     0       1       2       3

                       UP TO   UP TO   UP TO
                 0K     256K    512K    768K *
                -----  -----   -----   -----
        SW1-5     ON    OFF      ON     OFF
        SW1-6     ON     ON     OFF     OFF

        NOTE: The maximum amount of conventional memory in an IBM PC/XT is
              640K.  SW1-5 & SW1-6 define the amount of conventional memory
              available to the PC from the Rampage board.  In some cases, the
              total of existing PC memory and Rampage conventional memory may
              add up to more than 640K.  In this situation, conventional memory
              stops at 640K and the balance becomes available as expanded
              memory.

        SW1-7  Dual page mode enable - Recommend "on" at all times

        SW1-8  Parity check enable - Recommend "on" at all times


    STARTING ADDRESS

              SW2-1  SW2-2  SW2-2  SW2-4
              -----  -----  -----  -----
          0K   OFF    OFF    OFF    OFF
         64K    ON    OFF    OFF    OFF
        128K   OFF     ON    OFF    OFF
        192K    ON     ON    OFF    OFF
        256K   OFF    OFF     ON    OFF
        320K    ON    OFF     ON    OFF
        384K   OFF     ON     ON    OFF
        448K    ON     ON     ON    OFF
        512K   OFF    OFF    OFF     ON
        576K    ON    OFF    OFF     ON
        640K   OFF     ON    OFF     ON






SWITCH BANK LOCATIONS

    ͻ
                                           +-------+ +----+         
                                           |       | |    |        Ķ
                                           +-------+ +----+         
                                           SW1       SW2            
                                                                    
                                                                    
                                                                    
                                                                    
                                                                    
                                                                   Ķ
    ͻ            ͼ 
                                                  ͼ      
                                                                      
