IBM 8862 Hardware Maintenance Manual - Page 124

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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 is over recommended voltage for 1.8V CPU 1. Check light path and replace failing component. 2. VRM 3 or 4. 3. Microprocessor x. System is over recommended voltage on VRM X 1. VRM 3 or 4 2. Microprocessor tray assembly System is under recommended voltage for 1.8V CPU 1. Check light path and replace failing component. 2. VRM 3 or 4. 3. Microprocessor x. System is under recommended voltage on VRM X 1. VRM 3 or 4 2. Microprocessor tray assembly System log 75%% full v Information only System Memory Error 1. Reseat memory card and DIMMs. 2. Replace memory. System over recommended ambient temperature 1. Check all fans and remove any obstacles from the path of airflow. 2. Verify room temperature is within recommended range. System over recommended voltage for +12v 1. Power supply 2. Power backplane System over recommended voltage for +5v 1. Power supply 2. Power backplane 3. I/O board assembly System over recommended voltage on +2.5v v Microprocessor tray assembly System over recommended voltage on +3.3v v I/O board assembly System over temperature for CPU X 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 Power Good Fault v Reseat/replace VRMs 3 and 4. System Running Nonredundant Power 1. Insert another power supply (if possible) and verify ac cord connections. 2. Remove devices consuming extraordinary power from the system. 3. Replace power backplane. System shutoff due to +1.5v over voltage 1. Check light path and replace failing component. 2. VRM 3 or 4. 3. Microprocessor x. 4. Microprocessor tray assembly. 114 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide

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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
is
over
recommended
voltage
for
1.8V
CPU
1.
Check
light
path
and
replace
failing
component.
2.
VRM
3
or
4.
3.
Microprocessor
x.
System
is
over
recommended
voltage
on
VRM
X
1.
VRM
3
or
4
2.
Microprocessor
tray
assembly
System
is
under
recommended
voltage
for
1.8V
CPU
1.
Check
light
path
and
replace
failing
component.
2.
VRM
3
or
4.
3.
Microprocessor
x.
System
is
under
recommended
voltage
on
VRM
X
1.
VRM
3
or
4
2.
Microprocessor
tray
assembly
System
log
75%%
full
v
Information
only
System
Memory
Error
1.
Reseat
memory
card
and
DIMMs.
2.
Replace
memory.
System
over
recommended
ambient
temperature
1.
Check
all
fans
and
remove
any
obstacles
from
the
path
of
airflow.
2.
Verify
room
temperature
is
within
recommended
range.
System
over
recommended
voltage
for
+12v
1.
Power
supply
2.
Power
backplane
System
over
recommended
voltage
for
+5v
1.
Power
supply
2.
Power
backplane
3.
I/O
board
assembly
System
over
recommended
voltage
on
+2.5v
v
Microprocessor
tray
assembly
System
over
recommended
voltage
on
+3.3v
v
I/O
board
assembly
System
over
temperature
for
CPU
X
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
Power
Good
Fault
v
Reseat/replace
VRMs
3
and
4.
System
Running
Nonredundant
Power
1.
Insert
another
power
supply
(if
possible)
and
verify
ac
cord
connections.
2.
Remove
devices
consuming
extraordinary
power
from
the
system.
3.
Replace
power
backplane.
System
shutoff
due
to
+1.5v
over
voltage
1.
Check
light
path
and
replace
failing
component.
2.
VRM
3
or
4.
3.
Microprocessor
x.
4.
Microprocessor
tray
assembly.
114
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide