Lenovo ThinkServer TD200x Hardware Maintenance Manual page 49

• 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 Pwr Rail A Fault has
transitioned to non-recoverable.
Sensor Pwr Rail B Fault has
transitioned to non-recoverable.
Sensor Pwr Rail C Fault has
transitioned to non-recoverable.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
Error A sensor has changed to
Nonrecoverable state.
1. Turn off the server and
disconnect it from power.
2. (Trained service technician
only) Remove the PCI adapter
and microprocessor 1.
Reinstall the microprocessor
in socket 1 and restart the
server.
3. Restart the server.
4. Reinstall each device, one
at a time, starting the server
each time to isolate the failing
device.
5. Replace the failing device.
6. (Trained service technician
only) Replace the system
board.
1. Turn off the server and
disconnect it from power.
2. (Trained service technician
only) Remove the PCI adapter
and microprocessor 2.
3. Restart the server.
4. Reinstall each device, one
at a time, starting the server
each time to isolate the failing
device.
5. Replace the failing device.
6. (Trained service technician
only) Replace the system
board.
1. Turn off the server and
disconnect it from power.
2. Remove the hard disk drives,
hard disk drive backplanes,
and DIMMs in connectors 1
through 8.
3. Restart the server.
4. Reinstall each device, one
at a time, starting the server
each time to isolate the failing
device.
5. Replace the failing device.
6. (Trained service technician
only) Replace the system
board.
.
Chapter 5 Diagnostics
41