IBM System x3250 Problem Determination And Service Manual page 71

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, Type 4364 or Type 4365 server," on page 59 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-event/error log message
System shutoff due to +1.5V CPU under voltage 1. Reseat the following components:
System shutoff due to +2.5v over voltage.
System shutoff due to +3.3V over voltage
System shutoff due to +3.3V under voltage
System shutoff due to +12v over voltage.
System shutoff due to +12v under voltage.
System shutoff due to continuous +5v over
voltage.
System shutoff due to continuous +5v under
voltage.
Action
a. (Trained service technician only) Microprocessor
b. (Trained service technician only) System board
c. Power supply
2. Replace the following components one at a time, in the order
shown, restarting the server each time:
a. (Trained service technician only) System board
b. (Trained service technician only) Microprocessor
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
1. Reseat the following components:
a. (Trained service technician only) System board
b. Power supply
2. (Trained service technician only) Replace the system board.
53
Chapter 2. Diagnostics