Table 6. DSA 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 See Chapter 4, “Parts listing, Type 7377 server,” on page 125 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.
Message
number Component Test State Description Action
166-906-xxx IMM IMM I2C Test Failed The IMM
indicates a
failure in the
memory
configuration
bus (Bus 5).
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.ibm.com/support/
docview.wss?uid=psg1SERV-DSA.
5. Make sure that the IMM firmware is at the latest
level. The installed firmware level is shown in
the diagnostic event log in the Firmware/VPD
section for this component. For more
information, see “Updating the firmware” on
page 233.
6. Run the test again.
7. Turn off the system and disconnect it from the
power source.
8. (Trained service technician only) Reseat the
system board.
9. Reconnect the system to the power source and
turn on the system.
10. Run the test again.
11. If the failure remains, go to the IBM Web site for
more troubleshooting information at
http://www.ibm.com/systems/support/
supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
201-801-xxx Memory Memory Test Aborted Test canceled:
the server
firmware
programmed the
memory
controller with
an invalid CBAR
address
1. Turn off and restart the system.
2. Run the test again.
3. Make sure that the server firmware is at the
latest level. The installed firmware level is shown
in the diagnostic event log in the Firmware/VPD
section for this component. For more information,
see “Updating the firmware” on page 233.
4. Run the test again.
5. If the failure remains, go to the IBM Web site for
more troubleshooting information at
http://www.ibm.com/systems/support/
supportsite.wss/docdisplay?brandind=5000008
&lndocid=SERV-CALL.
Chapter 3. Diagnostics
81
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