Table 14. 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 web site 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
201-901-xxx Memory Memory
Test
Failed Test failure:
single-bit error,
failing DIMM z.
1. Turn off the system and disconnect it
from the power source.
2. Reseat DIMM z.
3. Reconnect the system to power and turn
on the system.
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 server 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 71.
6. Run the test again.
7. Replace the failing DIMMs.
8. Re-enable all memory in the Setup utility
(see “Using the Setup utility” on page
75).
9. Run the test again.
10. Replace the failing DIMM.
11. Re-enable all memory in the Setup utility
see “Using the Setup utility” on page
75).
12. Run the test again.
13. 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 4. Troubleshooting 229
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