IBM L40 SX - Page 156

#E.2.3 Usage Note for OS/2
#Because the program, EXT_PWR.EXE, accesses the system hardware, add the
#following line to the CONFIG.SYS file.
# IOPL=YES
#Otherwise, accessing the system hardware results in an error condition
#(for example, SYS0197).
PS/2 Model L40 SX Quick Reference
Usage Note for OS/2
¦ Copyright IBM Corp. 1991
E.2.3 - 1