Troubleshooting; Avoiding Memory Manager Conflicts - 3Com ETHERLINK III LAN PC CARD User Manual

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This chapter provides information for isolating and solving
problems that may occur during the installation and
configuration of the 3C589C PC Card.
Avoiding Memory Manager Conflicts
If you are not using Card Services and you are using an
expanded (EMM386.EXE) or extended (HIMEM.SYS) memory
manager on your PC, you must exclude an 8 K block of upper
memory from use by the memory manager. The memory
requirement is 4 K when the diagnostic tests are not running.
All PCs running Windows have a memory manager.
Follow these steps to exclude 8 K of memory for the
3C589C PC Card:
1 Make a backup copy of the CONFIG.SYS file. Type the
following:
copy CONFIG.SYS CONFIG.OLD
2 Use a text editor to edit the CONFIG.SYS file on your PC.
3 Exclude the memory range that the 3C589C PC Card is
using. For example, type this line into the device section
of the new CONFIG.SYS file:
device=c:\windows\emm386.exe x=DE00H–DFFFH noems
where x stands for exclude, followed by the memory range
that the PC Card is using. In this example, the memory
setting is DE00H–DFFFH.
T
ROUBLESHOOTING