Lenovo 3822, 3821, 3719, 3823 manual Levels or coordinated code

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

vSee 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.

A Uncorrectable Bus Error has	Error	A bus uncorrectable error	1.	Check the system-event log.
occurred on system %1.		has occurred.
			2.	Check the microprocessor
(%1 = CIM_ComputerSystem.		(Sensor = Critical Int CPU)
				error LEDs.
ElementName)
			3.	Remove the failing
				microprocessor from the
				system board.
			4.	Check for a server firmware
				update.
				Important:	Some cluster
				solutions require specific code
				levels or coordinated code
				updates. If the device is part
				of a cluster solution, verify
				that the latest level of code is
				supported for the cluster
				solution before you update
				the code.
			5.	Make sure that the two
				microprocessors are
				matching.
			6.	(Trained service technician
				only) Replace the system
				board.
A Uncorrectable Bus Error has	Error	A bus uncorrectable error	1.	Check the system-event log.
occurred on system %1.		has occurred.
			2.	Check the DIMM error LEDs.
(%1 = CIM_ComputerSystem.		(Sensor = Critical Int DIM)
			3.	Remove the failing DIMM
ElementName)
				from the system board.
			4.	Check for a server firmware
				update.
				Important:	Some cluster
				solutions require specific code
				levels or coordinated code
				updates. If the device is part
				of a cluster solution, verify
				that the latest level of code is
				supported for the cluster
				solution before you update
				the code.
			5.	Make sure that the installed
				DIMMs are supported and
				configured correctly.
			6.	(Trained service technician
				only) Replace the system
				board.

Chapter 5. Diagnostics 45