Lenovo ThinkServer TD200x Hardware Maintenance Manual page 94

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 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
DIMM 1 to DIMM 16 A DIMM has failed or is incorrectly
error LEDs installed.
CPU 1 error LED Microprocessor 1 has failed, is
missing, or has been incorrectly
installed.
Note: (Trained service technician
only) Make sure that the
microprocessors are installed in the
correct sequence; see "Installing a
microprocessor and heat sink" on
page 222.
86
ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual
The system board is equipped with a PCI extender card that provides either one
or two additional expansion slots. The following illustration shows the LEDs on
the PCI Express extender card, if one is installed.
The following illustration shows the LEDs on the PCI-X extender card, if one is
installed.
The following table describes the LEDs on the system board and extender card
and suggested actions to correct the detected problems.
Action
1. Remove the DIMM that is indicated by a lit error
LED.
2. Reseat the DIMM.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. DIMM
b. (Trained service technician only) System board
1. Check the system-event log to determine the
reason for the lit LED.
2. (Trained service technician) Reseat the failing
microprocessor.
3. Replace the following components one at a time,
in the order shown, restarting the server each time:
a. (Trained service technician only) Failing
microprocessor
b. (Trained service technician only) System board