HP Integrity rx1620 Installation Guide, Second Edition - HP Integrity rx1620 - Page 53

Troubleshooting Troubleshooting and FRU identification Table 4-1 Problem Symptoms Repair Actions (Continued) Problem or Symptom Problem Indicators System will not power on when display panel Power switch is turned on. • Display panel power LED stays off when power is turned on. • System LED may be flashing yellow (attention indication). Normal Functioning Indicators • Power switch on. • Power LED on steady green. • System LED is off. Troubleshooting Steps Potential FRUs 1. Ensure there is a working power supply. The LED on the supply should be lit. • Power supply • CPU power pod 2. Verify that standby voltage is present. Check that the STBY LED on the system board is lit. 3. Verify that the baseboard management controller is functioning. Check the heartbeat (BMC) LED on the system board is lit. • System board • Intrusion switch on chassis (cover not completely closed) No EFI Main Menu prompt. 4. Check system event log (SEL). Look for event log detail = Low Voltage DC power. This indicates a failure of one of the CPU power pods. The failing CPU power pod is indicated in the Source ID field. • Display panel power LED is not steady green. • No system events are being displayed at the console. • There is no EFI Main Menu prompt at the console. • Display panel power LED is steady green. • System events are being displayed at the console. • EFI Main Menu prompt. 1. Check that the console is properly connected and that you can communicate with the BMC (CTRL+B should get you the MP login prompt). 2. Check system event log (SEL). Look for entries related to: • Processors • Processor support modules (also known as power pods). • Memory 3. Check for a red LED on the MP card if installed. If lit red, the problem is with the MP. • Processors • Processor support modules • Memory • System board • Console 4. Reduce to minimum configuration and troubleshoot from there. Chapter 4 53