IBM 5150 Manual To Operations page 27

Power-on Self-test
11.
When you first position System Unit switch to on, it performs a
~
Power-on Self-test. The time the Self-test takes is determined
by the amount of memory your system has (3 to 45 seconds).
Position the System Unit switch to ON. There will normally be
three responses:
1. Cursor will appear on screen in approximately 4 seconds.
2. One short beep will be heard after memory is tested.
3. "IBM Personal Computer" will appear on screen.
1
2
•
; ~ I I I I I I I I I I I I I I
II:81DI
o
\
3
fIjjifi
The IBM Personal Computer
~-'
,1/
•
o
Note: These three responses tell you that your Self-test has
completed successfully. Other information will appear on
screen and is not important at this time.
If responses were incorrect, go to Section 4, ''Problem
Detennination Procedures" (PDPs).
If responses were correct, go to Step 12.
Setup 2-11