IBM x3250 M3 Problem Determination And Service Manual page 52

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 4, "Parts listing, System x3250 M3 Types 4251, 4252, and 4261," on page 119 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.
Numeric sensor Fan n Tach going
low (lower critical) has asserted.
(n = fan number)
The Processor CPU nStatus has
Failed with IERR.
(n = microprocessor number)
An Over-Temperature Condition has
been detected on the Processor
CPU nStatus.
(n = microprocessor number)
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IBM System x3250 M3 Types 4251, 4252, and 4261: Problem Determination and Service Guide
Error A lower critical sensor going
low has asserted.
Error A processor failed - IERR
condition has occurred.
Error An overtemperature condition
has occurred for
microprocessor n.
(n = microprocessor number)
1. Reseat the failing fan n, which
is indicated by a lit LED on
the system board (see
"System-board LEDs" on page
18).
2. Replace the failing fan.
(n = fan number)
1. Make sure that the latest
levels of firmware and device
drivers are installed for all
adapters and standard
devices, such as Ethernet,
SCSI, and SAS.
Important: Some cluster
solutions require specific code
levels or coordinated code
updates. If the device is part
of a cluster solution, verify that
the latest level of code is
supported for the cluster
solution before you update the
code.
2. Run the DSA program for the
hard disk drives and other I/O
devices.
3. (Trained service technician
only) Replace microprocessor
n.
(n = microprocessor number)
1. Make sure that the fans are
operating, that there are no
obstructions to the airflow, that
the air baffle is 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.
(n = microprocessor number)