Table 13. IMM2 error messages (continued)
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v If an action step is preceded by “(Trained technician only),” that step must be performed only by a trained
technician.
800b010a-1e81xxxx
800b010a-1e82xxxx
800b010a-1e83xxxx
Cooling Zone n
redundancy lost has
asserted. (n = 1,2,3)
Error Redundancy lost
has asserted.
1. Make sure that the connectors on
fan n are not damaged.
2. Make sure that the fan n connectors
on the system board are not
damaged.
3. Make sure that the fans are correctly
installed.
4. Reseat the fans.
5. Replace the failing fan (see
“Removing a fan” on page 310 and
“Replacing a fan” on page 311).
(n = fan number)
800b050a-1e81xxxx
800b050a-1e82xxxx
800b050a-1e83xxxx
Cooling Zone n
insufficient resources
has asserted. (n =
1,2,3)
Error There is no
redundancy and
insufficient to
continue operation.
1. Make sure that the connectors on
fan n are not damaged.
2. Make sure that the fan n connectors
on the system board are not
damaged.
3. Make sure that the fans are correctly
installed.
4. Reseat the fans.
5. Replace the failing fan (see
“Removing a fan” on page 310 and
“Replacing a fan” on page 311).
(n = fan number)
80070204-0a01xxxx
80070204-0a02xxxx
Sensor PS n Fan
Fault has
transitioned to
critical from a less
severe state. (n =
power supply
number)
Error A sensor has
changed to Critical
state from a less
severe state.
1. Make sure that there are no
obstructions, such as bundled
cables, to the airflow from the
power-supply fan.
2. Replace power supply n.
(n = power supply number)
Power messages
80010902-0701xxxx Numeric sensor
Planar 3.3V going
high (upper critical)
has asserted.
Error An upper critical
sensor going high
has asserted.
(Trained technician only) Replace the
system board (see “Removing the
system board” on page 354 and
“Replacing the system board” on page
359).
80010202-0701xxxx Numeric sensor
Planar 3.3V going
low (lower critical)
has asserted.
Error A lower critical
sensor going low
has asserted.
(Trained technician only) Replace the
system board (see “Removing the
system board” on page 354 and
“Replacing the system board” on page
359).
Chapter 4. Troubleshooting 143
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