Lenovo ThinkServer TS200 Hardware Maintenance Manual page 143

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See the parts listing in the Hardware Maintenance Manual to determine which components are customer
replaceable units (CRUs) and which components are field replaceable units (FRUs).
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by
a trained service technician.
System error or
information LED 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 the
procedures for removing and
installing a microprocessor in the
Hardware Maintenance Manual.
CPU 2 error LED Microprocessor 2 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 the
procedures for removing and
installing a microprocessor in the
Hardware Maintenance Manual.
CPU mismatch LED A mismatched microprocessor has
been installed.
Note: All microprocessors must
have the same speed and cache
size.
VRM failure LED Microprocessor 2 VRM has failed or
is incorrectly installed.
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
1. Check the system-event log to determine the reason
for the lit LED.
2. Find the failing, missing, or mismatched
microprocessor by checking the LEDs on the
system board.
3. (Trained service technician) Reseat the failing
microprocessor.
4. 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
1. Run the Setup Utility and view the microprocessor
information to compare the installed microprocessor
specifications.
2. (Trained service technician only) Remove and
replace one of the microprocessors so that they
both match.
1. Reseat the VRM
2. Replace the following components one at a time, in
the order shown, restarting the server each time:
a. VRM
b. (Trained service technician only) System board
3. Replace the VRM
.
Chapter 5 Locating Server Controls and connectors
135