HP ProLiant DL760 G2 Server - Manual (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
If a system interconnect LED corresponding to a
component or module is on, then the
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.
Reseat the component represented
by the system interconnect LED.
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.
No
If the reset LED is on, the system is in reset.
A power supply may have stopped providing
adequate power as per system specifications.
The system may have experienced a short.
A reboot may have been initiated by means of
Automatic Server Recovery (ASR-2).
Reseat the server modules.
Check for bent pins on the
midplane.
Verify that the power supplies are
functioning properly.
continued
E-12 HP ProLiant DL760 Generation 2 Server User Guide
HP CONFIDENTIAL
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