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Table 3. DSA diagnostic 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 7, “Parts listing, ThinkServer RD220 Type 3729, 3779, 3797, and 3798,” on page 231 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 Test State Description Action
201-901-xxx Memory Memory
Test
Failed Test failure:
single-bit error,
failing bank x,
failing DIMM z.
1. Turn off the system and disconnect it
from the power source.
2. Reseat DIMM z (see “Removing a
memory module (DIMM)” on page
186 and “Installing a DIMM” on page
192).
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 system UEFI
code 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 the latest level of
firmware, go to http://www.ibm.com/
support/docview.wss?uid=psg1
MIGR-4JTS2T and select your
system to display a matrix of
available firmware.
6. Run the test again.
7. Replace the failing DIMMs.
8. Re-enable all memory in the Server
Configuration and Boot Management
program.
9. Run the test again.
10. Replace the failing memory card .
Chapter 5. Diagnostics 111