IBM totalstorage 200, Service Manual

Page: 54 / 180

Power error messages
Table 12 describes power error messages and their suggested actions.
Table 12. Power errors and actions
Message Meaning Action
Power supply X current
fault
Level-critical; excessive
current demand on power
supply
X
See “Power checkout” on page 11.
Power supply X DC good
fault
Level-critical; power good
signal not detected for power
supply
X
Replace power supply X .
Power supply X fan fault Level-critical; fan fault in
power supply
X
Replace power supply X
Power supply X fault Level-critical; overcurrent
condition exists See “Power checkout” on page 11.
Power supply X 12V fault Level-critical; overcurrent
condition detected See “Power checkout” on page 11.
Power supply X 3.3V fault Level-critical; 3.3V power
supply
X had an error
See “Power checkout” on page 11.
Power supply X 5V fault Level-critical; 5V power
supply
X had an error
See “Power checkout” on page 11.
System over recommended
X current
Level-non-critical; system
running too much current on
that voltage See “Power checkout” on page 11.
System running
non-redundant power Level-non-critical; system
does not have redundant
power
1. Add another power supply
2. Remove options from system
Note: The system can continue to operate without
redundancy protection if steps 1 and 2 are not
followed.
System under
recommended voltage for
X
v
Level-warning; indicated
voltage supply under nominal
value; value for
X can be
+12, -12, or +5
1. Check connections to power subsystem
2. Replace power supply
3. Replace power backplane
System under
recommended voltage on
3.3 v Level-warning; 3.3 volt supply
under nominal value
1. Check connections to power subsystem
2. Replace power supply
3. Replace power backplane
System under
recommended X current Level-non-critical; system
drawing less current than
recommended on voltage
X
See “Power checkout” on page 11.
X V bus fault Level-critical; overcurrent
condition on
X voltage bus
1. Check for short circuit on X voltage bus
2. See “Power checkout” on page 11.
12V X bus fault Level-critical; overcurrent
condition on 12-V
X voltage
bus
1. Check for short circuit on 12-V X voltage bus
2. See “Power checkout” on page 11.
5V fault Level-critical; overcurrent
condition on 5-V subsystem
1. Check for short circuit on 5-V bus.
2. See “Power checkout” on page 11.
240 VA bus fault Level-critical; overcurrent or
overvoltage condition in
power subsystem. See “Power checkout” on page 11.
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Models 200 and 225 Service Guide