Operation Manual

Note: See Chapter 7, “Parts listing, Types 8861, 8862,” on page 139 to determine which components are
replaceable by the customer and which components must be replaced by an IBM field service technician.
Service Processor message FRU/action
System shutoff due to +1.5v under voltage
1. Check light path and replace failing component.
2. VRM3or4.
3. Microprocessor x.
4. Microprocessor tray assembly.
System shutoff due to +12v over voltage
1. Power supply
2. Power backplane
System shutoff due to +12v under voltage
1. Power supply
2. Power backplane
System shutoff due to +2.5v over voltage
1. Check light path and replace failing component.
2. Microprocessor tray assembly.
System shutoff due to +2.5v under voltage
1. Check light path and replace failing component.
2. Microprocessor tray assembly.
System shutoff due to +3.3v over voltage
v I/O board assembly
System shutoff due to +3.3v under voltage
v I/O board assembly
System shutoff due to +5v over voltage
1. Power supply
2. I/O board assembly
System shutoff due to +5v under voltage
1. Power supply
2. I/O board assembly
System shutoff due to CPU X over
temperature
1. Check all fans and remove any obstacles from the path of
airflow.
2. Verify room temperature is within recommended range.
3. Verify the microprocessor heat sinks are properly seated.
System shutoff due to DASD X temperature
1. Check all fans and remove any obstacles from the path of
airflow.
2. Verify room temperature is within recommended range.
System shutoff due to high ambient
temperature
1. Check all fans and remove any obstacles from the path of
airflow.
2. Verify room temperature is within recommended range.
Systems Management RTC battery is no
longer reliable
v Replace Remote Supervisor Adapter II.
User <USERID> attempting to power/reset
server
v Information only
VRM X Power Good Fault
1. VRM3or4
2. Microprocessor tray assembly
The service processor also generates a large number of information, error, and
warning messages.
If an RXE-100 unit is attached, the service processor might generate further
messages specific to this unit, which are listed in the following table:
Chapter 6. Symptom-to-FRU index 115