IBM HS12 - BladeCenter - 8028 Service Manual page 152

v See Chapter 4, "Parts listing, Types 8014, 8028 and 1916," on page 25 to determine which components are CRUs
and which components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Error code Description
166-905-xxx Failed the BMC self test due to a failure in the
CPU/VRD bus.
140
BladeCenter HS12 Type 8014, 8028 or 1916: Problem Determination and Service Guide
Action
Note: Ignore this error if the direct access storage
device (DASD) planar is not installed.
1. Turn off the blade server, open the blade server
release levers and pull the blade server away
from the blade server bay, but do not remove
it. See "Removing the blade server from the
BladeCenter unit" on page 33 for more
information.
2. Wait 45 seconds and reseat the blade server in
the blade module bay and turn on the blade
server. See "Installing the blade server in a
BladeCenter unit" on page 34 and "Turning on
the blade server" on page 9.
3. Rerun the test. See "Diagnostic tools overview"
on page 67.
4. Make sure that the DSA Diagnostic code is
up-to-date, upgrade if necessary; then, rerun
the test. The latest code can be found on the
IBM support Web site at http://
www.ibm.com/support/
docview.wss?uid=psg1SERV-DSA.
5. Make sure that the BMC firmware level is
up-to-date, upgrade if necessary; then, rerun
the test. 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 at
http://www.ibm.com/support/
docview.wss?uid=psg1MIGR-4JTS2T.
6. Turn off the blade server, remove the blade
server from the blade server bay and remove
the cover. (See "Removing the blade server
cover" on page 35 for more information).
7. Locate the microprocessor and reseat it. (See
"Removing a microprocessor and heat sink" on
page 60 for more information.)
8. Close the cover and reseat the blade server in
the blade server bay and turn on the blade
server.
9. Rerun the test. See "Diagnostic tools overview"
on page 67.
10. If the failure remains, refer to Chapter 5,
"Removing and replacing blade server
components," on page 31 to replace the failed
component.