Lenovo RD210 manual Power-supply LEDs Error LED Description Action

Power-supply
	LEDs		Power-supply
AC		DC	error LED	Description	Action
Off		Off	Off	No power to the	1. Check the ac power to the server.
				server, or a problem
					2. Make sure that the power cord is connected to a
				with the ac power
					functioning power source.
				source.
					3. Remove one power supply at a time.
Off		Off	On	No power to the	v Make sure that the power cord is connected to a
				server, or an internal	functioning power source.
				power supply
					v Replace the power supply.
				problem.
Off		On	Off	Power supply	Replace the power supply.
				problem.
Off		On	On	Power supply	Replace the power supply.
				problem.
On		Off	Off	DC source power	1. Reseat the power supply.
				problem.
					2. If the problem remains, check the 240v Aux channel
					error LED on the system board and do the
					following:
					a. If the LED is lit, (trained service technician only)
					replace the system board.
					b. If the LED is not lit, replace the power supply.
On		Off	On	Power supply	Replace the power supply.
				problem.
On		On	Off	Standby power	1. View the event log (see the Hardware Maintenance
				problem.
					Manual for information about error logs).
					2. Remove one power supply at a time.
On		On	On	Power supply	Replace the power supply.
				problem, but still
				operational.
On		On	Flashing	System power-on	1. View the system-error log (see the Hardware
				problem.
					Maintenance Manual for information about error
					logs).
					2. Press the power-control button on the operator
					information panel.
					3. (Trained service technician only) Use the
					force-power-on jumper as a debugging aid (see the
					Hardware Maintenance Manual to determine
					whether the information panel switch and cable are
					faulty).
					4. (Trained service technician only) Replace the
					microprocessor.
On		On	Off	The power is good.	No action is necessary.

Chapter 7. Solving problems 165