JP> would normally start. This happens whilst using the 
 JP> IBM2SCSI.ADD device driver. If I REM this out, the

Have you tried the warp csd yet?  Here's one of the apars

 APAR= PJ16151
  IBM2SCSI WON'T ALLOW BOOT PARTITIONS > 4 GIGS OR BEYOND 4 GIGS
  IF THE PARTITIONS ARE SMALL UNDER OS2 3.0, 2.11 ABD BELOW

Also,  the debug kernel (actually the debug loader) will print out
everything OS/2 is assuming about your memory when it first loads.  This
may or may not help you.


--- Maximus/2 2.02p1