9.13 IBM XGA; Using EMM386

   To use the IBM XGA successfully  with the EMM386 expanded-memory emulator,
   you need to  manually prevent EMM386  from using the  memory address range
   used by  the  XGA  display. To  do  this,  include the  X=  option  on the
   device=EMM386.EXE line in your CONFIG.SYS file. For example:

     device=EMM386.EXE  X=C600-C7FF

   Replace "C600-C7FF" with the  correct value for the  address range used by
   your XGA. To identify this range,  run the System Configuration Program on
   the System Reference  Disk for your  Personal System/2  (PS/2), and select
   "Display Memory Map." A common range is C600-C7FF.

   With some PS/2 model 75 plasma screens  or with XGA configured for 640x480
   resolution and 16 colors, you must also include the NOEMS or RAM option on
   the device=EMM386.EXE line in your CONFIG.SYS file. For example:

     device=EMM386.EXE NOEMS X=C600-C7FF

   Do not include  the i=B000-BE00  option on  the device=EMM386.EXE  line in
   your CONFIG.SYS file. This address  range is used by  the XGA when running
   Windows in 386 enhanced mode. Therefore, it cannot be used as upper memory
   area. Windows will  not recognize  XGA configurations  if EMM386  is using
   this address range.

   For more information about modifying your CONFIG.SYS file, see your MS-DOS
   documentation. For more information about  installing the EMM386 expanded-
   memory emulator and  configuring the way  it uses memory,  see Chapter 14,
   "Optimizing Windows," in the Microsoft Windows User's Guide.



.