IBM 887022X Maintenance Manual - Page 215

temperature

Page 215 highlights

Note: See Chapter 8, "Parts listing, Type 8870," on page 249 to determine which components are replaceable by the customer, and which components should be replaced by an IBM field service technician. Service Processor message FRU/action Power supply x DC good fault 1. If System Power Present indicator (see "Center plane connectors, jumpers and LEDs" on page 159) is OFF: a. Power backplane b. Power supplies 2. If System Power Present indicator is ON, suspect shorting components; reduce the system to its minimum configuration (see "Undetermined problems" on page 246) and replace components one at a time to isolate fault. Power supply x fan fault Power supply Power supply x temperature fault 1. Verify that the system fan air intake areas are clear and well ventilated. 2. Verify that all four system fans are installed and functioning correctly. 3. Power supply. 4. Fans 3 and 4. Primary I/O Power Fault 1. Verify that the system power present indicator is ON (see "Center plane connectors, jumpers and LEDs" on page 159). 2. If the system power present indicator is OFF: a. Power backplane b. Power supplies 3. Failing component indicated by Light Path. 4. VRMs on failing board indicated by the Light Path. Processor or VRM failed 1. Failing component indicated by Light Path 2. Verify that the VRM is firmly seated. 3. Failing microprocessor VRM. 4. Failing microprocessor. Resetting System Due to an Unrecoverable error 1. Refer to previous log entries. 2. If Light Path indicates memory error, replace failing DIMM. 3. If Light Path indicates microprocessor error: a. VRM. b. Microprocessor. 4. SMP Module. System is over recommended voltage for 3.3V PCI System is under recommended voltage for 3.3V PCI 1. Remove PCI adapters and reinstall one at a time, restarting the server each time, to isolate failing adapter. 2. PCI-X VRM. 3. PCI-X Board. 4. I/O Board VRM. 5. I/O Board. 1. Remove PCI adapters and reinstall one at a time, restarting the server each time, to isolate failing adapter. 2. PCI-X VRM. 3. PCI-X Board. Chapter 7. Symptom-to-FRU index 205

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Note:
See
Chapter
8,
“Parts
listing,
Type
8870,”
on
page
249
to
determine
which
components
are
replaceable
by
the
customer,
and
which
components
should
be
replaced
by
an
IBM
field
service
technician.
Service
Processor
message
FRU/action
Power
supply
x
DC
good
fault
1.
If
System
Power
Present
indicator
(see
“Center
plane
connectors,
jumpers
and
LEDs”
on
page
159)
is
OFF:
a.
Power
backplane
b.
Power
supplies
2.
If
System
Power
Present
indicator
is
ON,
suspect
shorting
components;
reduce
the
system
to
its
minimum
configuration
(see
“Undetermined
problems”
on
page
246)
and
replace
components
one
at
a
time
to
isolate
fault.
Power
supply
x
fan
fault
Power
supply
Power
supply
x
temperature
fault
1.
Verify
that
the
system
fan
air
intake
areas
are
clear
and
well
ventilated.
2.
Verify
that
all
four
system
fans
are
installed
and
functioning
correctly.
3.
Power
supply.
4.
Fans
3
and
4.
Primary
I/O
Power
Fault
1.
Verify
that
the
system
power
present
indicator
is
ON
(see
“Center
plane
connectors,
jumpers
and
LEDs”
on
page
159).
2.
If
the
system
power
present
indicator
is
OFF:
a.
Power
backplane
b.
Power
supplies
3.
Failing
component
indicated
by
Light
Path.
4.
VRMs
on
failing
board
indicated
by
the
Light
Path.
Processor
or
VRM
failed
1.
Failing
component
indicated
by
Light
Path
2.
Verify
that
the
VRM
is
firmly
seated.
3.
Failing
microprocessor
VRM.
4.
Failing
microprocessor.
Resetting
System
Due
to
an
Unrecoverable
error
1.
Refer
to
previous
log
entries.
2.
If
Light
Path
indicates
memory
error,
replace
failing
DIMM.
3.
If
Light
Path
indicates
microprocessor
error:
a.
VRM.
b.
Microprocessor.
4.
SMP
Module.
System
is
over
recommended
voltage
for
3.3V
PCI
1.
Remove
PCI
adapters
and
reinstall
one
at
a
time
,
restarting
the
server
each
time,
to
isolate
failing
adapter.
2.
PCI-X
VRM.
3.
PCI-X
Board.
4.
I/O
Board
VRM.
5.
I/O
Board.
System
is
under
recommended
voltage
for
3.3V
PCI
1.
Remove
PCI
adapters
and
reinstall
one
at
a
time,
restarting
the
server
each
time,
to
isolate
failing
adapter.
2.
PCI-X
VRM.
3.
PCI-X
Board.
Chapter
7.
Symptom-to-FRU
index
205