Lenovo 3823, 3821, 3822, 3719 manual Diagnostics

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

vSee the Chapter 8, “Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823,” on page 237 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.

Lit EasyLED
diagnostics LED with
the system-error or
information LED also
lit	Description	Action
System board (BRD)	An error occurred on the system	1.	Check the LEDs on the system board to identify
	board.
			the component that is causing the error. The BRD
			LED can be lit for the following conditions:
			v Failed or missing battery
			v	Failed voltage regulator
		2.	Check the system-event log for information about
			the error.
		3.	Replace any failed or missing replaceable
			components, such as the battery.
		4.	(Trained service technician only) If a voltage
			regulator has failed, replace the system board.
PCI bus	A PCI adapter has failed.	1.	See the system-event log (see “System-event log”
			on page 38).
		2.	Check the LEDs on the PCI slots to identify the
			component that is causing the error, and reseat the
			failing adapter.
		3.	Replace the following components one at a time,
			in the order shown, restarting the server each time:
			a.	Failing adapter
			b. (Trained service technician only) System board
Fan	A fan has failed or is operating too	1.	Reinstall the removed fan.
	slowly.
		2.	If an individual fan LED is lit, replace the fan.
		3.	(Trained service technician only) Replace the
			system board.
Power supply	A power supply has failed or has	1.	Check the individual power-supply LEDs.
	been removed.
		2.	Reseat the following components:
	Note: In a redundant power
			a.	Power supply
	configuration, the dc power LED on
	one power supply might be off.		b. (Trained service technician only) Power-supply
				cage cables
		3.	Replace the following components one at a time,
			in the order shown, restarting the server each time:
			a.	Power supply
			b. (Trained service technician only) Power-supply
				cage

Chapter 5. Diagnostics 79