Lenovo ThinkServer TD200x Hardware Maintenance Manual page 92

v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See the Chapter 8, "Parts Listing, TD200x Machine Types 3719, 3821, 3822, and 3823," on page 239 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.
Lit light path
diagnostics LED with
the system-error or
information LED also
lit Description
Service processor bus The IMM detects an internal error.
(SP BUS)
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ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual
Look at the system service label on the top of the server, which gives an
overview of internal components that correspond to the LEDs on the light path
diagnostics panel. This information can often provide enough information to
diagnose the error.
Action
1. Disconnect the server from ac power; then,
reconnect the server to power and restart the
server.
2. Update the IMM firmware.