NOTE: For high availability and safety reasons, the power LED is run directly from the power rails, not under firmware control.
Power Supply Power LED
There are 1 Hz flashing green POWER LED (PWR) located on each power supply, which indicate that ac power is applied to the power supply, and that housekeeping voltages are available in the server. These LEDs light steady green when power is available from the power supplies to the server. If a power supply LED flashes amber at 1 Hz, the power supply has failed.
Table
Table
Power Supply Power LED | Power Supply Condition |
|
|
Off | No ac power applied to any power supply |
|
|
Off | No ac power applied to a specific power supply |
|
|
Flashing green ~ 1 Hz | ac standby power is present |
|
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Steady green | Power supply dc outputs are functioning correctly |
|
|
Flashing amber ~ 1 Hz | Power supply has failed. (includes overvoltage, overcurrent, overtemperature, |
| and fan failure) |
|
|
I/O VRM
Table
Table
Diagnostic | IPMI Event | Cause | Source | Notes |
LED |
|
|
|
|
|
|
|
|
|
I/O power | Type 02h, 02h:07h:03h | Voltage on | BMC | A voltage on the I/O power |
| VOLTAGE_DEGRADES_TO_NON_RECOVERABLE | CRU is |
| assembly is out of range ( too |
|
| inadequate |
| low) |
|
|
|
|
|
Cooling Subsystem
The three fan cooling zones located in the rx3600 chassis provide N+1 redundancy for the chassis using three identical dual fan assembly CRUs. In turn, each dual fan assembly FRU provides additional N+1 redundancy for the fan cooling zone it cools. The fan assembly CRUs are identified in the chassis as fans 1, 2, and 3 both for logging and for fault identification on the diagnostic LED panel.
Cooling Subsystem Behavior
The BMC chip located on the core I/O board FRU controls fan speed based on ambient air temperatures, chip temperatures, server configuration, and fan operation or failure. Air is drawn through the front of the chassis and pushed out the rear by the cooling fans.
NOTE: You can display fan status remotely using the iLO 2 MP ps command.
Within HP Integrity rx3600 servers, temperature sensors report chassis temperatures to the BMC, which controls fan speed based on this information.
Table
166 Troubleshooting