IBM System x3100 M4

Table 7. DSA Preboot 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, System x3100 M4 Type 2582,” on page 151 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.
v Go to the IBM support website at http://www.ibm.com/supportportal/ 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
166-907-xxx IMM2 IMM2 I2C Test Failed The IMM2 indicates
a failure in the
temperature sensor
(Bus 6).
1. Turn off the system and disconnect it
from the power source. You must
disconnect the system from ac
power to reset the IMM2.
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 more information
and to download the utilities, go to
http://www.ibm.com/systems/support/
supportsite.wss/
docdisplay?brandind=5000008
&lndocid=SERV-DSA.
5. Make sure that the IMM2 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 267.
6. Run the test again.
7. Make sure that the fans are
operating, that there are no
obstructions to the airflow (front and
rear of the server), that the air baffle
is in place and correctly installed,
and that the server cover are
installed and completely closed.
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 the IBM
website for more troubleshooting
information at http://www.ibm.com/
systems/support/supportsite.wss/
docdisplay?brandind=5000008
&lndocid=SERV-CALL.
Chapter 3. Diagnostics
125