Lenovo ThinkServer TS200 Hardware Maintenance Manual page 106

Table 5. 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 7 "Parts listing, TS200 Types 6522, 6523, 6524, 6525, 6526, 6528, 6529, and 6530" on page 209
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
166-903-xxx IMM
98
Hardware Maintenance Manual
State
IMM I2C Test Failed
Description Action
The IMM 1. Turn off the system and disconnect
indicates a it from the power source. You must
failure in the disconnect the system from ac
DIMM bus (Bus power to reset the IMM.
2).
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. For
more information, see "Updating
the firmware" on page 269.
6. Run the test again.
7. Disconnect the system from the
power source.
8. Replace the DIMMs one at a
time, and run the test again after
replacing each DIMM.
9. Reconnect the system to the power
source and turn on the system.
10. Run the test again.
11. Turn off the system and disconnect
it from the power source.
12. Reseat all of the DIMMs.
13. Reconnect the system to the power
source and turn on the system.
14. Run the test again.
15. Turn off the system and disconnect
it from the power source.
16. (Trained service technician only)
Replace the system board.
17. Reconnect the system to the power
source and turn on the system.
18. Run the test again.
19. If the failure remains, go to
the Lenovo Web site for more
troubleshooting information at
http://www.lenovo.com/support.