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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
201-902-xxx Memory Memory
Test
Failed Test failure:
single-bit and
multi-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 (see the information in
Installation and User Guide).
9. Run the test again.
112 ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Hardware Maintenance Manual