3Com Corporation
              EtherDisk Diskette for the EtherLink II Family
                            System Resources



 The EtherLink II, and II/TP adapters uses four system resources
 using defaults as follows:

      -  I/O address range                    300h
      -  Interrupt level                      3
      -  DMA channel/Arbitration level        1
      -  Memory address range                 DISABLE


 The EtherLink II/16, and II/16/TP adapters use five system resources
 using defaults as follows:      

      - I/O base address         300h
      - Interrupt level          3
      - DMA channel              1
      - Memory base address      C8000     
      - Data Transfer Mode       16 bit    
      
 These defaults are used in the diagnostics, within NDIS drivers, and in
 the case of hardware jumpers, and can be changed.  NetWare, on the other hand,
 has many optional settings to choose from during installation, and therefore 
 has no default.  Before you  install the adapter, make sure that these settings
 do not conflict  with similar settings on other peripherals.

 Listed below are commonly used peripherals and the adapter option settings
 they might conflict with.  If any of these peripherals are installed in your
 computer, check which resources they are using and make sure the EtherLink II
 options are not set to use the same resources.  Other peripherals, not 
 mentioned in these lists, might also cause conflicts.


 NOTE:  The codes in parenthesis following a peripheral name indicates that 
        the information applies only on those types of computers.

        PC    --  IBM PC
        XT    --  IBM PC/XT
        AT    --  IBM Personal Computer AT
        PS/2  --  IBM Personal System/2 models containing the Industry Standard
                  Architecture (ISA) bus
        

 I/O Base Address
 ----------------

 COM4: - fourth serial port              2E0
 GPIB adapter                            2E0
 Data Acquisition adapter                2E0
 Prototype board                         300


 Interrupt Level
 ---------------

 Reserved (PC)                           2
 Redirected from level 9 (XT,AT)         2
 EGA or VGA video adapter                2
 Video (PS/2)                            2
 ASYNC adapter                           3,4
 SDLC adapter                            3,4
 BSC adapter                             3,4
 Cluster (PC,AT)                         3
 COM2: - second serial port (XT,AT)      3
 PC network adapter                      3
 COM1: - first serial port (XT,AT,PS/2)  4
 Hard disk controller (PC,XT,PS/2)       5
 LPT2: - second parallel port (XT,AT)    5


 DMA Channel
 -----------

 SDLC adapter                            1
 Diskette controller                     2
 Hard disk controller (PS/2)             3


 Memory Base Address
 -------------------

 Hard disk controller ROM (PC)           C8000
 Hard disk controller ROM (XT)           C8000,CC000
 EGA and VGA video ROM                   C8000,CC000
 Expansion RAM                           D8000,DC000





       (%VER  System Resources v2.0c)