v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v See Chapter 3, “Parts listing, Type 7979 and 1914 server,” on page 79 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Error code Description Action
166-415-001 System Management: Failed.
I
2
C bus failure.
1. Disconnect all power cords and external cables
from the server, wait 30 seconds, reconnect the
power cords and cables, and retry the test.
2. Update the BMC firmware to the latest level.
3. Reseat the operator information panel cable.
4. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Operator information panel assembly
b. (Trained service technician only) System
board
180-xxx-000 Diagnostics LED failure. Run diagnostics panel LED test for the failing LED.
180-xxx-001 Failed front LED panel test.
1. Reseat the operator information panel cable.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Operator information panel assembly
b. (Trained service technician only) System
board
180-xxx-002 Failed diagnostics LED panel test. Note: The light path diagnostics panel is part of the
operator information panel assembly.
1. Reseat the operator information panel cable.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Operator information panel assembly
b. (Trained service technician only) System
board
180-361-003 Failed fan LED test.
1. Reseat the fans.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time:
a. Fans
b. (Trained service technician only) System
board
180-xxx-003 Failed system board LED test. (Trained service technician only) Replace the system
board.
Chapter 2. Diagnostics 63
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