Troubleshooting Using Hp Intelligent Manageability Features; Diagnostic Light Codes - HP xw4300 Service And Technical Reference Manual

5.5

Troubleshooting Using HP Intelligent Manageability Features

The Local Alert Pop-Up Dialog notifies you of an impending or actual hardware failure. If the workstation is connect to
a network and the HP Insight Management Agents are installed and configured, a Simple Network Management
Protocol (SNMP) trap (message) is sent to the specified SNMP-compliant management application.
5.6

Diagnostic Light Codes

This sections provides an overview of the diagnostic lights that are related to your workstation.
NOTE: The beeps are heard through the on-board piezo speaker and not the chassis speaker. The blinking lights and
beeps repeat for five cycles. After that, only the blinking lights repeat.
Table 5-2 Diagnostic Light Codes
Chassis Indicator Lights
Power LED and Sound Activity
None
Beeps and blinks RED two times
Beeps and blinks RED 3 times
Beeps and blinks RED 4 times
Diagnosis and Service Action
System does not power on.
Press the power button. If the HDD LED is green:
Check that the power supply cables are properly connected to the system board.
1.
2. Remove the expansion cards one at a time.
3. Replace the system board.
Or
Press the power button. If the HDD LED does not illuminate:
1. Check that the unit is plugged into a working AC outlet.
2. Check that the power button harness is properly connected to the in-line front panel I/O
device assembly connector.
3. Check that the power supply cables are properly connected to the system board.
4. Check the power supply functionality.
a. Disconnect the AC power.
b. Remove all internal power supply cables from the system board.
c. Plug in the AC power.
• If the power supply fan spins and the BIST LED lights, the power supply is functional.
Replace the system board.
• If the power supply fan does not spin or the BIST LED does not light, replace the power
supply.
Thermal shutdown:
1. Ensure the workstation air vents are not blocked and the cooling fans are running.
2. Press the power button, and see if the fans on the CPU heatsinks spin. If they are not
spinning, ensure the fan cable is plugged into the system board. Ensure the CPU heatsinks
are properly seated.
3. If the CPU heatsinks are plugged in and seated but are not spinning, replace the CPU
heatsinks.
4. Reseat the CPU heatsinks and verify the fan assemblies are properly attached.
CPU is not installed:
1. Install CPU.
2. Reseat CPU.
Power supply failure:
1. Locate the faulty device by removing all devices and then reinstalling one at a time until
workstation fails. Replace the device causing the failure. Continue adding devices to ensure
all are functioning properly.
2. Check the power supply functionality.
a. Disconnect AC power.
d. Remove all internal power supply cables from the system board.
e. Plug in AC power.
• If the power supply fan spins and the BIST LED lights, then the power supply is
functional. Replace the system board.
• If the power supply fan does not spin or the BIST LED does not light, replace the power
supply.
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