Lenovo THINKSERVER 3821 - Manual (Page 62)

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See 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).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Memory DIMM Configuration Error
for DIMM nStatus on Memory
Subsystem DIMM nStatus.
(n = DIMM number) Error A DIMM configuration error
has occurred. Make sure that DIMMs are
installed in the correct sequence
and have the same size, type,
speed, and technology.
Sensor DIMM n Temp has
transitioned to critical from a less
severe state.
(n = DIMM number) Error A sensor has changed to
Critical state from a less
severe state. 1. Make sure that the fans are
operating, that there are no
obstructions to the airflow,
that the air baffles are in
place and correctly installed,
and that the server cover is
installed and completely
closed.
2. If a fan has failed, complete
the action for a fan failure.
3. Replace DIMM n.
(n = DIMM number)
A PCI PERR has occurred on system
%1.
(%1 = CIM_ComputerSystem.
ElementName) Error A PCI PERR has occurred.
(Sensor = PCI Slot n; n =
PCI slot number) 1. Check the extender-card
LEDs.
2. Reseat the affected adapters
and extender card.
3. Update the server and
adapter firmware (UEFI and
IMM).
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.
4. Remove the adapter from slot
n.
5. Replace the PCIe adapter.
6. Replace extender card n.
(n = PCI slot number)
54 ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual