IBM 5531 Operator's Manual page 50

Running the Power-On Self-Test {POST}
(continued)
As we mentioned before, when the POST has finished, you will hear one short beep.
Then, the following screen should appear:
If you heard one short beep and your screen looks like the example above, then the system
completed its power-on self-test successfully. Go to the section, "Formatting a Diskette," in
this chapter.
Note: If a program from a diskette or an operating system from the fixed disk drive is
automatically loaded, the first screen that appears will look different from our example.
If this screen is correct (for the operating system you are using), you are ready to format a
diskette and begin running the diagnostic tests.
If nothing appears on the screen, you did not hear a beep, an error message appears, or if the
screen is not centered properly, continue with the next section, "Industrial Computer
POST Errors."
Chapter 5. Problem Determination Procedures
5-5