IBM RT User's Setup Manual page 94

18. Look at the adapter names on the screen. Write On the system
cabling record the names of adapters you have not yet recorded.
Write only the names of adapters in slots 2 through 8 in IBM
6150 and slots 1 through 5 in IBM 6151. Do not worry about
slots not listed on the cabling record. The completed system
cabling record should match the information on the screen for
these numbered adapter slots.
19. Remove the diagnostic diskette from the drive and return it to
the pocket in the back cover of IBM RT PC Problem
Determination Guide.
You have completed task 7. Return to the check list.
3-12 User Setup Guide