IBM 8669 Hardware Maintenance Manual - Page 111

Voltage related system shutdown, Temperature related system shutdown, DASD checkout

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Voltage related system shutdown Message Action System shutoff due to ″X″ current over max value (level-critical; system drawing too much current on voltage ″X″ bus) 1. See "Power checkout" on page 19. System shutoff due to ″X″ V over voltage 1. Check power supply connectors (level-critical; system shutoff due to ″X″ supply over voltage) 2. Replace power supply 3. Replace power backplane System shutoff due to ″X″ V 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″ System shutoff due to excessive (< 240 1. See "Power checkout" on page 19. VA) loading 2. Cycle AC On/Off to enable retry 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 "System reliability considerations" on page 41. 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 "System reliability considerations" on page 41. 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) 2. 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 "System reliability considerations" on page 41. 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 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 101

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Voltage related system shutdown
Message
Action
System shutoff due to
″
X
″
current over
max value
(level-critical; system drawing
too much current on voltage
″
X
″
bus)
1.
See “Power checkout” on page 19.
System shutoff due to
″
X
″
V 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
″
V 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
″
System shutoff due to excessive (< 240
VA) loading
1.
See “Power checkout” on page 19.
2.
Cycle AC On/Off to enable retry
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 “System reliability
considerations” on page 41.
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 “System reliability
considerations” on page 41.
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.
2.
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 “System reliability
considerations” on page 41.
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
101