IBM 5155 Manual To Operations page 126

4
Did the following appear on your screen?
DO YOU WANT TO INCLUDE FIXED DISK
WRITE TESTS ON DRIVE 0: (YIN)? y
PERFORMING SEEK TEST
PERFORMING WRITE TEST
PERFORMING TRACK ZERO TEST
PERFORMING SURFACE SCAN
PLEASE STAND BY
YES - Your system has successfully completed
r""\
this test. Continue with the next Test.
NO - Record the error message and have the
expansion unit serviced.
1700-4 Test January 1984