Rampage!                                            AST Part Number 202141-001

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

    STARTING ADDRESS

              SW1-1   SW1-2   SW1-3   SW1-4
              -----   -----   -----   -----
          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


    TYPE OF RAM INSTALLED

        BANK 0  BANK 1    SW1-5  SW1-6  SW1-7
        ------  ------    -----  -----  -----
          64K     64K   |   ON     ON    OFF
          64K    256K   |   ON    OFF    OFF
         256K    256K   |  OFF    OFF    OFF

        NOTE: The Rampage requires 256K DRAM memory chips in all of it's banks
              with the exception of banks zero and one.  As shown above, 64K
              DRAMS may be used in these two banks if the switches are set
              correctly.

        SW1-8 - PARITY CHECK (recommended ON at all times)


    BASE I/O ADDRESS

               208  218  258  268  2A8  2B8  2E8
               ---  ---  ---  ---  ---  ---  ---
        SW2-1   ON  OFF  OFF   ON   ON  OFF   ON
        SW2-2   ON   ON   ON  OFF  OFF  OFF  OFF
        SW2-3   ON   ON  OFF  OFF   ON   ON  OFF
        SW2-4   ON   ON   ON   ON  OFF  OFF  OFF


    RAMPAGE MEMORY AVAILABLE AS COVENTIONAL (Base 640K)

                 0K    64K  128K  192K  256K  320K  384K  448K  512K  576K
                ----  ----  ----  ----  ----  ----  ----  ----  ----  ----
        SW2-5   OFF    ON   OFF    ON   OFF    ON   OFF    ON   OFF    ON
        SW2-6   OFF    ON    ON   OFF   OFF    ON    ON   OFF   OFF    ON
        SW2-7   OFF    ON    ON    ON    ON   OFF   OFF   OFF   OFF    ON
        SW2-8   OFF    ON    ON    ON    ON    ON    ON    ON    ON   OFF




SWITCH BANK LOCATIONS

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