SUMMARY
You may come across the following error:
AERead: Status=00002001
Boot I/O Reading Disk
or your PC hang if you run Windows NT on an IBM PS/2 model 95. These problems may be caused by an error in the IBM PS/2 model 95 XP 486 Reference Disk version 1.20.

MORE INFORMATION

On several IBM PS/2 models, hardware support and diagnostic code is installed from the reference disk to a reserved area of the fixed disk. Depending on the reference disk used to set up a given machine, some PS/2 95s may show the difficulty and others may not. Just switching to a reference disk from a machine which works does not solve the difficulty since the reference disks are matched to processor cards specific to any given machine. The coding error in version 1.20 of the PS/2 model 95 XP reference disk may also cause wrong memory readings if you perform the MS-DOS MEM command on a system set up with this reference disk.