Lenovo TD100X manual Power-supply

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee Chapter 3, “Parts listing, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206,” on page 25 to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Power-supply			Front
			information
	LEDs		panel
AC		DC	power-on	Description	Action
			LED
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.
Lit		Off	Off	DC source or power	1.	Make sure that the power supply is connected to the
				supply power
						power backplane.
				problem.
					2.	Remove and replace one power supply at a time.
					3.	View the system-error log (see “Error logs” on page
						153).
Lit		Lit	Off	Standby power	1.	View the system-error log (see “Error logs” on page
				problem.
						153).
					2.	Remove one power supply at a time.
					3.	(Trained service technician only) Replace the power
						backplane.
Lit		Lit	Flashing	System power-on	1.	View the system-error log (see “Error logs” on page
				problem.
						153).
					2.	Make sure that the power cables are seated correctly.
					3.	Press the power-control button on the control-panel.
					4.	Remove the optional Remote Supervisor Adapter II
						SlimLine, and try to turn on the server.
					5.	(Trained service technician only) Reseat the system
						board.
					6.	(Trained service technician only) Replace the system
						board.
Lit		Lit	Lit	The power is good.	No action is necessary.

188ThinkServer TD100 and TD100x: Hardware Maintenance Manual