Table 3. DSA Preboot messages (continued)
• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See Chapter 9 “Parts listing, ThinkServer RD210 Type 3795, 3796, 3818, and 3819” on page 143 to determine
which components are customer replaceable units (CRU) and which components are field replaceable
units (FRU).
• If an action step is preceded by “(Trained service technician only),” that step must be performed only by
a Trained service technician.
• Go to the Lenovo support Web site at http://www.lenovo.com/support to check for technical information,
hints, tips, and new device drivers or to submit a request for information.
Message
number
Component Test
State
Description
Action
166-904-xxx
IMM
IMM I2C
Test
Failed
The IMM
indicates
a failure in
the power
supply bus
(Bus 3).
1. Turn off the system and disconnect it from
the power source. You must disconnect the
system from ac power to reset the IMM.
2. After 45 seconds, reconnect the system to the
power source and turn on the system.
3. Run the test again.
4. Make sure that the DSA code is at the latest
level. For the latest level of DSA code, go to:
http://www.lenovo.com/support
5. Make sure that the IMM firmware is at the latest
level. The installed firmware level is shown in
the DSA event log in the Firmware/VPD section
for this component.
6. Run the test again.
7. Reseat the power supply.
8. Run the test again.
9. Turn off the system and disconnect it from the
power source.
10. Trained service technician only) Replace the
system board.
11. Reconnect the system to the power source
and turn on the system.
12. Run the test again.
13. If the failure remains, go to
http://www.lenovo.com/support for
more troubleshooting information.
44
ThinkServer RD210 Hardware Maintenance Manual
Summary of Contents for ThinkServer RD210
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