Lenovo ThinkServer RD220 Hardware Maintenance Manual page 129

• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 7 "Parts listing, ThinkServer RD220 Type 3729, 3779, 3797, and 3798" on page 205 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.
System event/error log message
CPU n IERR, the CPU has been disabled n = the
microprocessor number
CPU n over temperature n = the microprocessor
number
CPU removal detected
CPU n non-critical over temperature warning n
= the microprocessor number
CPU n non-recoverable over temperature fault
VRD 1 critical over voltage fault
VRD 1 critical under voltage fault
VRD 2 critical over voltage fault VRD 2 = VRM
VRD 2 critical under voltage fault VRD 2 = VRM
Processor VTT Power Fault.
Action
1. (Trained service technician only) Reseat microprocessor n.
2. (Trained service technician only) Replace microprocessor n.
3. (Trained service technician only) Replace the system board.
1. Make sure that the fans are operating, that there are no
obstructions to the airflow, that the air baffles are in place and
correctly installed, and that the server cover is installed and
completely closed.
2. Make sure that the heat sink for microprocessor n is installed
correctly.
3. (Trained service technician only) Replace microprocessor n.
Information only. Take action as appropriate.
1. Make sure that the fans are operating, that there are no
obstructions to the airflow, that the air baffles are in place and
correctly installed, and that the server cover is installed and
completely closed.
2. Make sure that the heat sink for microprocessor n is installed
correctly.
1. Make sure that the fans are operating, that there are no
obstructions to the airflow, that the air baffles are in place and
correctly installed, and that the server cover is installed and
completely closed.
2. Make sure that the heat sink for microprocessor n is installed
correctly.
3. (Trained service technician only) Replace microprocessor n
4. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat microprocessor 1.
2. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat microprocessor 1.
2. (Trained service technician only) Replace the system board.
1. Reseat the VRM.
2. (Trained service technician only) Reseat microprocessor 2.
3. (Trained service technician only) Replace the system board.
1. Reseat the VRM.
2. (Trained service technician only) Reseat microprocessor 2.
3. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat microprocessor 1.
2. (Trained service technician only) Replace the system board.
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Chapter 5 Diagnostics