IBM BladeCenter HS22V 7871 Problem Determination And Service Manual page 214

v See Chapter 4, "Parts listing, Types 7871 and 1949," on page 41 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
166-904-xxx Failed the IMM I2C test indicates failure in
the blade expansion unit, high-speed
daughter card, or light path diagnostics panel.
198
BladeCenter HS22V Type 7871 and 1949: Problem Determination and Service Guide
Action
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 52 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 53 and "Turning on
the blade server" on page 13.
3. Rerun the test. See "Diagnostic tools overview"
on page 97.
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 component 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. Reseat the following components:
a. Reseat the expansion unit, if one is installed
(see "Removing an optional expansion unit"
on page 57 and "Installing an optional
expansion unit" on page 58).
b. Reseat all high-speed expansion cards in the
blade server (see "Removing an I/O
expansion card" on page 74 and "Installing
an I/O expansion card" on page 78).
c. Reseat the bezel and control-panel cable (see
"Removing the bezel assembly" on page 59
and "Installing the bezel assembly" on page
60)
7. Rerun the test. See "Diagnostic tools overview"
on page 97.
8. (Trained service technician) If the failure
remains, replace the system-board (see
"Removing the system-board assembly" on page
94 and "Installing the system-board assembly"
on page 95).