IBM QS21 - BladeCenter - 0792 Service Manual page 83

Table 6. BMC test results (continued)
Test Number Status
166-902- Fail
xxx
Extended
results Actions
The BMC
1. Turn off the system and disconnect it from power. The
indicates a
system must be removed from AC power in order to reset
failure in the
the BMC.
memory card
2. After 45 seconds, reconnect the system to power and turn
bus.
on the system.
3. Run the test again.
4. Make sure that the DSA Diagnostic code is at the latest
level. The latest level DSA Diagnostic code can be found
on the IBM Support Web site at http://www.ibm.com/
support/docview.wss?uid=psg1SERV-DSA/.
5. Check BMC firmware level and upgrade if necessary. The
installed firmware level can be found in the DSA
Diagnostic Event Log within the Firmware/VPD section for
this component. The latest level firmware for this
component can be found on the IBM Support Web site
athttp://www.ibm.com/support/us/en/.
6. Run the test again.
7. If the reported memory size is the same as the installed
memory size, complete the following steps. Otherwise, go
to step 8.
a. Turn off the system and disconnect it from power.
b. Reseat all the system DIMMs within the system.
c. Reconnect the system to power and turn on the
d. Run the test again.
8. Turn off the system and disconnect it from power.
9. Remove all the system memory.
10. Install the minimum memory configuration for the system.
See the QS21 Installation and User's Guide for supported
memory configurations.
11. Reconnect the system to power and turn on the system.
12. Make sure that the reported memory size is the same as
the installed memory size.
13. Run the test again. If the memory passes the test, one of
the uninstalled memory cards or DIMMs is the failing
component.
14. Repeat steps 8 through to 13 as necessary, using
different memory cards and DIMMs, to isolate the failing
component. It is important to change only one element
each time in order to identify the specific cause of the
error.
15. Replace the failing memory card or DIMM.
system.
Chapter 5. Diagnostics and troubleshooting
65