Table 6. 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.
80010701-2c01xxxx Sensor Mezz Card
Temp going high
(upper non-critical)
has asserted.
Warning An upper
non-critical sensor
going high has
asserted.
1. Reduce the ambient temperature.
2. Check the server airflow. Make sure
that nothing is blocking the air from
coming into or preventing the air
from exiting the server.
80010901-2c01xxxx Sensor Mezz Card
Temp going high
(upper critical) has
asserted.
Error An upper critical
sensor going high
has asserted.
1. Reduce the ambient temperature.
2. Check the server airflow. Make sure
that nothing is blocking the air from
coming into or preventing the air
from exiting the server.
80010b01-2c01xxxx Sensor Mezz Card
Temp going high
(upper
non-recoverable) has
asserted.
Error An upper
non-recoverable
sensor going high
has asserted.
Check the server airflow. Make sure
that nothing is blocking the air from
coming into or preventing the air from
exiting the server.
80010204-1d01xxxx
80010204-1d02xxxx
80010204-1d03xxxx
80010204-1d04xxxx
80010204-1d05xxxx
80010204-1d06xxxx
Numeric sensor Fan
n A Tach going low
(lower critical) has
asserted.
(n = fan number)
Error A lower critical
sensor going low
has asserted.
1. Reseat the failing fan n, which is
indicated by a lit LED near the fan
connector on the system board.
2. Replace the failing fan (see
“Removing a hot-swap dual-motor
hot-swap fan” on page 257 and
“Installing a hot-swap dual-motor
hot-swap fan” on page 258).
(n = fan number)
80010204-1d01xxxx
80010204-1d02xxxx
80010204-1d03xxxx
80010204-1d04xxxx
80010204-1d05xxxx
80010204-1d06xxxx
Numeric sensor Fan
n B Tach going low
(lower critical) has
asserted.
(n = fan number)
Error A lower critical
sensor going low
has asserted.
1. Reseat the failing fan n, which is
indicated by a lit LED near the fan
connector on the system board.
2. Replace the failing fan (see
“Removing a hot-swap dual-motor
hot-swap fan” on page 257 and
“Installing a hot-swap dual-motor
hot-swap fan” on page 258).
(n = fan number)
800b010a-1e81xxxx
800b010a-1e82xxxx
Fan Zone n
redundancy lost has
asserted.
(n = fan number)
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 fans (see “Removing a
hot-swap dual-motor hot-swap fan”
on page 257 and “Installing a
hot-swap dual-motor hot-swap fan”
on page 258).
(n = fan number)
Chapter 3. Diagnostics 51
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