IBM System x3750 M4 Type 8722 Installation And Service Manual page 362

Table 29. 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 5, "Parts listing, System x3750 M4 Types 8722 and 8733," on page 195 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
166-903-xxx IMM2
166-904-xxx IMM2
346
System x3750 M4 Types 8722 and 8733: Installation and Service Guide
Test State Description
2
IMM I C Failed IMM indicates
a failure in the
Clock bus (Bus
2)
2
IMM I C Failed IMM indicates
a failure in the
LED bus (Bus
3)
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. 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.
4. Make sure that the IMM firmware is
at the latest level. The installed
firmware level can be found at
http://www.ibm.com/support/
docview.wss?uid=psg1MIGR-4JTS2T.
For more information, see "Updating
the firmware" on page 123.
5. Run the test again.
6. If the failure remains, see Chapter 4,
"Troubleshooting," on page 149 for
the corrective 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. 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.
4. Make sure that the IMM firmware is
at the latest level. The installed
firmware level can be found at
http://www.ibm.com/support/
docview.wss?uid=psg1MIGR-4JTS2T.
For more information, see "Updating
the firmware" on page 123.
5. Run the test again.
6. If the failure remains, see Chapter 4,
"Troubleshooting," on page 149 for
the corrective action.