IBM x3655 Service Guide - Page 186

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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 x3655, Type 7985," on page 97 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. BMC log message Sensor Sensor number type Action VRD 1.4V 2E 08 1. Inspect the SAS power cable. Assertion 01 (Power unit failure) 2. Replace the SAS backplane assembly. 3. (Trained service technician only) Replace the system board. VRD 1.2V 2F 08 Information only Assertion 00 (Presence detected) VRD 1.2V 2F 08 1. (Trained service technician only) Replace the system board. Assertion 01 (Power unit failure) 2. (Trained service technician only) Isolate the failing microprocessor. 3. (Trained service technician only) Replace the microprocessor. Ambient temperature 32 01 Make sure that the fans have good airflow and are not obstructed. Exhaust temperature 33 01 Make sure that the fans have good airflow and are not obstructed. Power supply 1 fault 38 08 1. Reseat power supply 1. 2. Replace power supply 1. 3. (Trained service technician only) Replace the system board. Power supply 2 fault 39 08 1. Reseat power supply 2. 2. Replace power supply 2. 3. (Trained service technician only) Replace the system board. Fan 1 tach 40 04 1. Reseat fan 1. 2. Replace fan 1. 3. (Trained service technician only) Replace the system board. Fan 2 tach 41 04 1. Reseat fan 2. 2. Replace fan 2. 3. Replace the front fan board. 4. (Trained service technician only) Replace the system board. Fan 3 tach 42 04 1. Reseat fan 3. 2. Replace fan 3. 3. Replace the front fan board. 4. (Trained service technician only) Replace the system board. Fan 4 tach 43 04 1. Reseat fan 4. 2. Replace fan 4. 3. (Trained service technician only) Replace the system board. Fan 5 tach 44 04 1. Reseat fan 5. 2. Replace fan 5. 3. (Trained service technician only) Replace the system board. 168 IBM System x3655 Type 7985: Problem Determination and Service Guide

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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
x3655,
Type
7985,”
on
page
97
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.
BMC
log
message
Sensor
number
Sensor
type
Action
VRD
1.4V
Assertion
01
(Power
unit
failure)
2E
08
1.
Inspect
the
SAS
power
cable.
2.
Replace
the
SAS
backplane
assembly.
3.
(Trained
service
technician
only)
Replace
the
system
board.
VRD
1.2V
Assertion
00
(Presence
detected)
2F
08
Information
only
VRD
1.2V
Assertion
01
(Power
unit
failure)
2F
08
1.
(Trained
service
technician
only)
Replace
the
system
board.
2.
(Trained
service
technician
only)
Isolate
the
failing
microprocessor.
3.
(Trained
service
technician
only)
Replace
the
microprocessor.
Ambient
temperature
32
01
Make
sure
that
the
fans
have
good
airflow
and
are
not
obstructed.
Exhaust
temperature
33
01
Make
sure
that
the
fans
have
good
airflow
and
are
not
obstructed.
Power
supply
1
fault
38
08
1.
Reseat
power
supply
1.
2.
Replace
power
supply
1.
3.
(Trained
service
technician
only)
Replace
the
system
board.
Power
supply
2
fault
39
08
1.
Reseat
power
supply
2.
2.
Replace
power
supply
2.
3.
(Trained
service
technician
only)
Replace
the
system
board.
Fan
1
tach
40
04
1.
Reseat
fan
1.
2.
Replace
fan
1.
3.
(Trained
service
technician
only)
Replace
the
system
board.
Fan
2
tach
41
04
1.
Reseat
fan
2.
2.
Replace
fan
2.
3.
Replace
the
front
fan
board.
4.
(Trained
service
technician
only)
Replace
the
system
board.
Fan
3
tach
42
04
1.
Reseat
fan
3.
2.
Replace
fan
3.
3.
Replace
the
front
fan
board.
4.
(Trained
service
technician
only)
Replace
the
system
board.
Fan
4
tach
43
04
1.
Reseat
fan
4.
2.
Replace
fan
4.
3.
(Trained
service
technician
only)
Replace
the
system
board.
Fan
5
tach
44
04
1.
Reseat
fan
5.
2.
Replace
fan
5.
3.
(Trained
service
technician
only)
Replace
the
system
board.
168
IBM
System
x3655
Type
7985:
Problem
Determination
and
Service
Guide