IBM RT User's Setup Manual page 383

9-16 Options Installation
44. Correct the problem, plug in all power cables to wall or other
electrical outlets, and retry the Options Installation Checkout
starting with Step 2.
45. Go to
IBM R T PC Problem Determination Guide
PC Hardware Maintenance and Service,
problem determination procedure.
46. Return Diagnostic Diskette 1 to the
Determination Guide',
and perform the
IBM R T PC Problem
the options checkout is complete.
or to
IBM RT