Lenovo ThinkServer TD200x Hardware Maintenance Manual page 48

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
Sensor Sys Board Fault has
transitioned to critical from a less
severe state.
The Power Supply (Power Supply: n)
has Failed.(n = power supply number)
Sensor PS n Fan Fault has transitioned
to critical from a less severe state.(n
= power supply number)
40
ThinkServer TD200x Hardware Maintenance Manual
Error A sensor has changed to
Critical state from a less
severe state.
Error Power supply nhas failed.(n
= power supply number)
Error A sensor has changed to
Critical state from a less
severe state.
1. Check the system-event log.
2. Check for an error LED on
the system board.
3. Replace any failing device.
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. (Trained service technician
only) Replace the system
board.
1. If the power-on LED is lit,
complete the following steps:
a. Reduce the server to the
minimum configuration.
b. Reinstall the components
one at a time, restarting
the server each time.
c. If the error recurs, replace
the component that you
just reinstalled.
2. Reseat power supply n.
3. Replace power supply n.
(n = power supply number)
1. Make sure that there are
no obstructions, such as
bundled cables, to the airflow
from the power-supply fan.
2. Replace power supply n.
(n = power supply number)