Lenovo 3822, 3821, 3719, 3823 manual Cnfg

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
Memory (MEM)	A memory error has occurred.	1. Determine whether the CNFG LED is also lit,
	Note: The error LED on the DIMM
		which indicates that the memory configuration is
	is also lit.
		invalid. Reinstall the DIMMs in a supported
		configuration.
		2. If the CNFG LED is not lit, one of the following
		conditions might be present:
		v The server did not start and a failing DIMM LED
		is lit:
		a. Check for a PFA log event in the
		system-event log.
		b. Reseat the DIMM.
		c. Move the DIMM to a different slot or replace
		the DIMM.
		d. (Trained service technician only) Replace
		the system board.
		v The server started, the failing DIMM is disabled,
		and the LED is lit:
		a. If the LEDs are lit by two DIMMs, check the
		system-event log for a PFA event on one of
		the DIMMs, and then replace that DIMM.
		Otherwise, replace both DIMMs.
		b. If the LED is lit by only one DIMM, replace
		that DIMM.
		c. Re-enable the DIMM, using the Setup utility.
Microprocessor/	A hardware configuration error has	1. (The system error LED, CPU LED, and this LED
Memory Configuration	occurred. (This LED is used with the
		are lit when POST detects a microprocessor
(CNFG)	MEM, VRM, and CPU LEDs.)
		mismatch.) Remove and install two
		microprocessors of the same cache size, type, and
		clock speed.
		2. (The system error LED, MEM LED, and this LED
		are lit when POST detects an invalid memory
		configuration.) Remove and install supported
		DIMMs (see “Installing a memory module” on page
		211).
		3. (The system error LED, VRM LED, and this LED
		are lit when POST detects a missing VRM.) Install
		a VRM for microprocessor 2 (see “Installing a
		voltage regulator module” on page 180).
		4. Check the system error log for information
		indicating incompatible components.

Chapter 5. Diagnostics 81