Troubleshooting Guide www.hp.com/in 8-17
Troubleshooting
Problem
Computer will not start.
Cause
Wrong memory modules
were used in the upgrade
or memory modules were
installed in the wrong
location.
Solution
1. Review the documentation
that came with the system to
determine if you are using
the correct memory modules
and to verify the proper
installation.
2. Observe the beeps and LED
lights on the front of the
computer. See "Interpreting
Diagnostic Lights and
Audible Codes" to determine
possible causes.
3. If you still cannot resolve the
issue, contact Customer
Support.
Interpreting Diagnostic Lights and Audible Codes
This section covers the front panel LED codes as well as the audible codes
that may occur before or during POST that do not necessarily have an
error code or text message associated with them.
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on
the front panel of the computer and refer to the following table to
determine the front panel LED codes.
Recommended actions in the following table are listed in the order in
which they should be performed.
Replace the system board or power supply only as the last resort.
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