IBM 8649 Hardware Maintenance Manual - Page 127

checkout, built-in, fault, messages

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Page 127 highlights

Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field service technician. Message Action System shutoff due to CPU x under temperature (level-critical; CPU x is under temperature) Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3 System shutoff due to DASD temperature (sensor x) (level-critical; DASD area reported temperature outside recommended operating range) Ensure that the system is being properly cooled; see "System reliability considerations" on page 33 System shutoff due to high ambient temperature (level-critical; high ambient temperature) Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3 System shutoff due to system board under temperature (level-critical; system board is under temperature) Ambient temperature must be within normal operating specifications; see "Features and specifications" on page 3 DASD checkout Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field service technician. Message Action Hard drive x removal detected (level-critical; hard drive x has been removed) Information only; take action as appropriate. Host built-in self test (BIST) Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field service technician. Message Action Host fail (level-informational; built-in self-test for the host failed) 1. Reseat the microprocessor. 2. Replace the microprocessor. Bus fault messages Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field service technician. Bus fault messages Message Action Failure reading 12C device. Check devices on bus 0. 1. If installed, reseat the I2C cable between Remote Supervisor Adapter (in PCI slot 1/J14) and the Remote Supervisor Adapter connector on the system board. 2. Memory DIMMs. 3. System board. Chapter 6. Symptom-to-FRU index 117

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Note:
See
“System
replaceable
units”
on
page
122
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Message
Action
System
shutoff
due
to
CPU
x
under
temperature
(level-critical;
CPU
x
is
under
temperature)
Ambient
temperature
must
be
within
normal
operating
specifications;
see
“Features
and
specifications”
on
page
3
System
shutoff
due
to
DASD
temperature
(sensor
x
)
(level-critical;
DASD
area
reported
temperature
outside
recommended
operating
range)
Ensure
that
the
system
is
being
properly
cooled;
see
“System
reliability
considerations”
on
page
33
System
shutoff
due
to
high
ambient
temperature
(level-critical;
high
ambient
temperature)
Ambient
temperature
must
be
within
normal
operating
specifications;
see
“Features
and
specifications”
on
page
3
System
shutoff
due
to
system
board
under
temperature
(level-critical;
system
board
is
under
temperature)
Ambient
temperature
must
be
within
normal
operating
specifications;
see
“Features
and
specifications”
on
page
3
DASD
checkout
Note:
See
“System
replaceable
units”
on
page
122
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Message
Action
Hard
drive
x
removal
detected
(level-critical;
hard
drive
x
has
been
removed)
Information
only;
take
action
as
appropriate.
Host
built-in
self
test
(BIST)
Note:
See
“System
replaceable
units”
on
page
122
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Message
Action
Host
fail
(level-informational;
built-in
self-test
for
the
host
failed)
1.
Reseat
the
microprocessor.
2.
Replace
the
microprocessor.
Bus
fault
messages
Note:
See
“System
replaceable
units”
on
page
122
to
determine
which
components
should
be
replaced
by
a
field
service
technician.
Bus
fault
messages
Message
Action
Failure
reading
12C
device.
Check
devices
on
bus
0.
1.
If
installed,
reseat
the
I2C
cable
between
Remote
Supervisor
Adapter
(in
PCI
slot
1/J14)
and
the
Remote
Supervisor
Adapter
connector
on
the
system
board.
2.
Memory
DIMMs.
3.
System
board.
Chapter
6.
Symptom-to-FRU
index
117