Interpreting Post Diagnostic Front Panel Leds And Audible Codes - HP dc72 - Blade Workstation Client Getting Started Manual
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- Reference manual (268 pages) ,
- Hardware reference manual (60 pages) ,
- User manual (42 pages)
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Table 2
Solving Hardware Installation Problems (continued)
Power LED flashes Red six times, once every second, followed by a two second pause, and the computer beeps six
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Graphics card is not seated properly or is bad, or system board
is bad.
Power LED flashes Red ten times, once every second, followed by a two second pause, and the computer beeps ten
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Bad option card.
Interpreting POST Diagnostic Front Panel LEDs 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.
WARNING!
to the system board. To reduce the risk of personal injury from electrical shock and/or hot
surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system
components to cool before touching.
Look for the LED between the DIMM sockets. If the LED is illuminated, the system still has power.
Power off the computer and remove the power cord before proceeding.
NOTE:
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.
Not all diagnostic lights and audible codes are available on all models.
Table 3
Diagnostic Front Panel LEDs and Audible Codes
Activity
Green Power LED On.
ENWW
When the computer is plugged into an AC power source, voltage is always applied
If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel
Beeps
None
Solution
For systems with a graphics card:
1.
Reseat the graphics card. Power on the system.
2.
Replace the graphics card.
3.
Replace the system board.
For systems with integrated graphics, replace the system
board.
Solution
1.
Check each option card by removing the cards one at time
(if multiple cards), then power on the system to see if fault
goes away.
2.
Once bad card is identified, remove and replace bad
option card.
3.
Replace the system board.
Possible Cause
Computer on.
Recommended Action
None
Basic Troubleshooting
13
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