Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 167

9
chapter
This chapter provides information on how to identify and
correct some common disk, display, memory, network, and
software problems. It also identifies and explains some common
messages you may receive on the screen.
Consult Appendix C, "Error Messages," for an explanation of
specific messages that may display during the power-on self-test
(POST) at startup. You will not see these messages if your
computer is configured for the Clean Boot mode.
Clean Boot is a fast boot process that suppresses most system
messages during POST, such as memory count and non-error
text messages. If a POST error occurs, the screen will display
the error message. To manually switch to Descriptive mode
during POST, press any key (except F10). The default boot
mode is Clean Boot.
Descriptive Boot shows all system messages during POST and
takes longer to complete. To see the system messages every
time you restart your computer, reconfigure your computer to
the Descriptive Boot mode, using Computer Setup.
If you encounter some minor problem with your computer,
monitor, or software, refer to the following list of general
suggestions before taking further action:
Check that the computer and monitor are plugged into a
working electrical outlet.
Check to see that the computer is turned on and the green
power light is on.
Check to see that the monitor is turned on and the green
monitor light is on.
Turn up the brightness and contrast controls of the monitor
if the monitor is dim.
Press and hold any key. If the system beeps, then your
keyboard is operating correctly.