System Shutdown; Voltage Related System Shutdown - IBM x 340 Series Hardware Maintenance Manual

Message
System under recommended voltage for "X"
v (level-warning; indicated
voltage supply under nominal value; value
for "X" can be +12, -12, or +5)
System under recommended voltage on 3.3
(level-warning; 3.3 volt
v
supply under nominal value)
System under recommended X current
(level-non-critical; system drawing less
current than recommended on voltage "X")
"X" V bus fault (level-critical;
overcurrent condition on "X" voltage bus)
12V "X" bus fault
overcurrent condition on 12 volt "X" voltage
bus)
5V fault (level-critical; overcurrent
condition on 5 V subsystem)
240 VA fault (level-critical; overcurrent
or overvoltage condition in power
subsystem)

System shutdown

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 under
min value
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)
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Hardware Maintenance Manual: xSeries 340 Model 6RY
1.
2.
3.
1.
2.
3.
1.
1.
2.
(level-critical; 1.
2.
1.
2.
1.
Refer to the following tables when experiencing system shutdown related to voltage
or temperature problems.
1.
1.
(level-critical;
1.
2.
3.
1.
2.
3.
Check connections to power subsystem
Replace power supply
Replace power backplane
Check connections to power subsystem
Replace power supply
Replace power backplane
See "Power checkout" on page 26.
Check for short circuit on "X" voltage bus
See"Power checkout" on page 26.
Check for short circuit on 12 volt "X" voltage bus
See "Power checkout" on page 26.
Check for short circuit on 5 v bus
See"Power checkout" on page 26.
See "Power checkout" on page 26.
See "Power checkout" on page 26.
See "Power checkout" on page 26.
Check power supply connectors
Replace power supply
Replace power backplane
Check power supply connectors
Replace power supply
Replace power backplane
Action
Action