Lenovo BladeCenter HX5 7873 Problem Determination And Service Manual page 257

• See "Parts listing - BladeCenter HX5" on page 57 to determine which components are CRUs and which
components are FRUs.
• If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Description
Error code
166-909-xxx Failed the IMM I
scalable memory interconnect A and C -
memory drawer BUS 0.
2
C test due to a failure in the
Action
140 and "Installing the system-board assembly -
BladeCenter HX5" on page 142).
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 chassis" on page 66 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 a blade server in a
BladeCenter chassis" on page 67 and "Turning
on the blade server" on page 11.
3. Run the test again. See "Diagnostic tools
overview" on page 146.
4. Make sure that the DSA code is up-to-date;
upgrade if necessary. The latest code can be
found at http://www.ibm.com/systems/ support/
supportsite.wss/docdisplay? brandind=
5000008&lndocid=SERV-DSA.
5. Make sure that the component firmware level is
up-to-date; upgrade if necessary. The installed
firmware level can be found in the DSA log
within the Firmware/VPD section for this
component. The latest level firmware for this
component can be found at http://www.ibm.
com/support/ fixcentral/systemx/groupView?
query.productGroup=ibm%2FBladeCenter.
6. Run the test again.
7. Reseat the scalability card (see "Removing the
2-node scalability card" on page 83 and
"Installing the system-board assembly -
BladeCenter HX5" on page 142).
8. Run the test again.
9. (Trained service technician only) Reseat the
system-board (see "Removing the system-
board assembly - BladeCenter HX5" on page
140 and "Installing the system-board assembly -
BladeCenter HX5" on page 142).
Chapter 5
. 241
Diagnostics