IBM 8668 Hardware Maintenance Manual - Page 133

Temperature related system shutdown, DASD checkout

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Message Action Power ″X″ fan fault (level-critical; power 1. Replace power supply ″X″ supply has shutdown due to fan failure Power Supply ″X″ thermal fault 1. Replace Power supply ″X″ (level-critical; power supply ″X″ has exceed permitted temperature limits and has shutdown) System shutoff due to ″X″ over-voltage (level-critical system shutoff due to ″X″ supply over-voltage) 1. Check power supply connectors 2. Replace power supply 3. Replace power backplane System shutoff due to ″X″ under-voltage (level-critical system shutoff due to ″X″ supply under-voltage) 1. Check power supply connectors 2. Replace power supply 3. Replace power backplane System shutoff due to VRM ″X″ over voltage 1. Replace VRM ″X″ Temperature related system shutdown Message Action System shutoff due to board over temperature (level-critical; board is over temperature) 1. Ensure system is being properly cooled, see "General checkout" on page 1. 2. Replace board System shutoff due to CPU ″X″ over temperature (level-critical; CPU ″X″ is over temperature) 1. Ensure system is being properly cooled, see "General checkout" on page 1. 2. Replace CPU ″X″ System shutoff due to CPU ″X″ under 1. Ambient temperature must be within normal operating temperature (level-critical; CPU ″X″ is under specifications (see "Features and specifications" on page 3.) temperature) System shutoff due to DASD temperature (sensor X) (level-critical; DASD area reported temperature outside recommended operating range) 1. Ensure system is being properly cooled, see "General checkout" on page 1. System shutoff due to high ambient temperature (level-critical; high ambient temperature) 1. Ambient temperature must be within normal operating specifications (see "Features and specifications" on page 3.). System shutoff due to system board under 1. Ambient temperature must be within normal operating temperature (level-critical; system board is specifications (see "Features and specifications" on page 3.). under temperature) DASD checkout Message Hard drive ″X″ removal detected (level-critical; hard drive ″X″ has been removed) Action 1. Information only, take action as appropriate. Symptom-to-FRU index 125

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Message
Action
Power
″
X
″
fan fault
(level-critical; power
supply has shutdown due to fan failure
1.
Replace power supply
″
X
″
Power Supply
″
X
″
thermal fault
(level-critical; power supply
″
X
″
has exceed
permitted temperature limits and has
shutdown)
1.
Replace Power supply
″
X
″
System shutoff due to
″
X
″
over-voltage
(level-critical system shutoff due to
″
X
″
supply over-voltage)
1.
Check power supply connectors
2.
Replace power supply
3.
Replace power backplane
System shutoff due to
″
X
″
under-voltage
(level-critical system shutoff due to
″
X
″
supply under-voltage)
1.
Check power supply connectors
2.
Replace power supply
3.
Replace power backplane
System shutoff due to VRM
″
X
″
over
voltage
1.
Replace VRM
″
X
″
Temperature related system shutdown
Message
Action
System shutoff due to board over
temperature
(level-critical; board is over
temperature)
1.
Ensure system is being properly cooled
, see “General checkout”
on page 1.
2.
Replace board
System shutoff due to CPU
″
X
″
over
temperature
(level-critical; CPU
″
X
″
is over
temperature)
1.
Ensure system is being properly cooled
, see “General checkout”
on page 1.
2.
Replace CPU
″
X
″
System shutoff due to CPU
″
X
″
under
temperature
(level-critical; CPU
″
X
″
is under
temperature)
1.
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)
1.
Ensure system is being properly cooled
, see “General checkout”
on page 1.
System shutoff due to high ambient
temperature
(level-critical; high ambient
temperature)
1.
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)
1.
Ambient temperature must be within normal operating
specifications
(see “Features and specifications” on page 3.).
DASD checkout
Message
Action
Hard drive
″
X
″
removal detected
(level-critical; hard drive
″
X
″
has been
removed)
1.
Information only, take action as appropriate.
Symptom-to-FRU index
125