System Shutdown; Voltage Related System Shutdown; Temperature Related System Shutdown - IBM xSeries 230 6RY Hardware Maintenance Manual

Message
12V "X" bus fault (level-critical; overcurrent
condition on 12 volt "X" voltage bus)
5V fault (level-critical; overcurrent condition
on 5 V subsystem)
240 VA bus fault (level-critical; overcurrent
or overvoltage condition in power
subsystem)

System shutdown

Refer to the following tables when experiencing system shutdown related to
voltage or temperature problems.

Voltage related system shutdown

Message
System shutoff due to "X" current over
max value (level-critical; system drawing
too much current on voltage "X" bus)
System shutoff due to "X" current over
min value (level-critical; current on voltage
bus "X" under minimum value)
System shutoff due to "X" V over voltage
(level-critical; system shutoff due to "X"
supply over voltage)
System shutoff due to "X" V under
voltage (level-critical system shutoff due to
"X" supply under voltage)
System shutoff due to VRM "X" over
voltage

Temperature related system shutdown

Message
System shutoff due to board over
temperature (level-critical; board is over
temperature)
System shutoff due to CPU "X" over
temperature (level-critical; CPU "X" is over
temperature)
System shutoff due to CPU "X" under
temperature (level-critical; CPU "X" is under
temperature)
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Hardware Maintenance Manual: xSeries 230 Models 6RY, 61Y
Action
1. Check for short circuit on 12 volt "X" voltage bus
2. See "Power checkout" on page 26.
1. Check for short circuit on 5 v bus
2. See "Power checkout" on page 26.
1. See "Power checkout" on page 26.
Action
1. See "Power checkout" on page 26
1. See "Power checkout" on page 26.
1. Check power supply connectors
2. Replace power supply
3. Replace power backplane
1. Check power supply connectors
2. Replace power supply
3. Replace power backplane
1. Replace power supply
2. Replace power supply backplane
Action
1. Ensure system is being properly cooled, see "Temperature
checkout" on page 28.
2. Replace board
1. Ensure system is being properly cooled, see "Temperature
checkout" on page 28.
2. Replace CPU "X"
1. Ambient temperature must be within normal operating
specifications (see "Features and specifications" on page 3.)