IBM 7383 Installation And Service Manual page 394

Table 38. 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 If an action step is preceded by "(Trained technician only)", that step must be performed only by a trained
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
166-902-xxx IMM
376
System x3500 M4 Type 7383: Installation and Service Guide
State Description
2
IMM I C Test Failed The IMM indicates
a failure in the
TPM bus (Bus 2).
Action
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.
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. Turn off the system and disconnect
it from the power source.
8. (Trained 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
website for more troubleshooting
information.