Lenovo ThinkServer TD100 Hardware Maintenance Manual page 229

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 3, "Parts listing, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206," on page 25 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.
System-error log message
System shutoff due to +3.3V over voltage
System shutoff due to +3.3V under voltage
System shutoff due to 1.5V CPU over voltage
System shutoff due to 1.5V CPU under voltage
System shutoff due to board over temperature
System shutoff due to continuous +5v over
voltage
System shutoff due to continuous +5v under
voltage
System shutoff due to CPU over temperature
Action
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Make sure that all fans have good airflow and are not
obstructed.
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. Hot-swap power supplies (if any are installed)
b. (Trained service technician only) Power-supply cables on
the system board
2. (Trained service technician only) Replace the system board.
1. Make sure that the heat sink has good airflow and is not
obstructed.
2. Reseat the following components:
a. Heat sink cable
b. (Trained service technician only) Heat sink
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Chapter 5. Diagnostics