HP DL760 HP ProLiant DL760 Generation 2 Server User Guide - Page 280

Troubleshooting Information Table E-5: Are all of the System Interconnect Status LED Indicators Off? Refer to "System Interconnect LED Indicators" in Appendix D. IMPORTANT: To prevent damage to critical system components, the ProLiant DL760 G2 server will not power up if certain components are not installed or are installed incorrectly. The system interconnect LEDs provide a closed-loop checking mechanism for verifying proper component mating between critical server components. Answer Possible Reasons The Next Step No If a system interconnect LED corresponding to a Reseat the component represented component or module is on, then the by the system interconnect LED. corresponding component or module is missing or is not seated properly. The components can include any processor, the memory board, a fan, the I/O module, the processor memory module, or media module. If the emergency shutdown system interconnect LED is on, AC power to the system has been cut to avert imminent component damage and data loss. The system may have recorded a temperature violation. A short circuit may have occurred. Check for bent pins on the midplane and power supply, which may have caused a short. Verify that the fans are working properly. Check the IML as soon as possible to view messages that indicate which component caused the shutdown. If the reset LED is on, the system is in reset. Reseat the server modules. A power supply may have stopped providing adequate power as per system specifications. Check for bent pins on the midplane. The system may have experienced a short. A reboot may have been initiated by means of Automatic Server Recovery (ASR-2). Verify that the power supplies are functioning properly. continued E-12 HP ProLiant DL760 Generation 2 Server User Guide