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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
405-906-xxx BroadCom
Ethernet
Device
Test Loop
back at
MAC
-Layer
Failed
1. Make sure that the component
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 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.
2. Run the test again.
3. Replace the component that is causing
the error. If the error is caused by an
adapter, replace the adapter (see
“Removing a PCI adapter” on page
179 and “Installing a PCI adapter” on
page 180). Check the PCI Information
and Network Settings information in
the DSA event log to determine the
physical location of the failing
component.
4. If the failure remains, collect the data
from the DSA event log and send it to
IBM Service. For information about
contacting and sending data to IBM
Service, go to http://www.ibm.com/
support/
docview.wss?uid=psg1SERVCALL.
132 ThinkServer RD220 Types 3729, 3779, 3797, and 3798: Hardware Maintenance Manual