Table of Contents
Advertisement
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 3, "Parts listing," on page 23 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.
Symptom
A blade server does not
power-on.
Fan-module problems
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 3, "Parts listing," on page 23 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.
Symptom
A fan module is running at full
speed.
Action
v Press the power-control button on the blade server to turn it on. See your blade
server documentation for more information.
v Reseat the blade server.
v Make sure that power modules are installed and working.
Note: Power modules 1 and 2 provide power to blade bays 1 through 6, and
power modules 3 and 4 supply power to blade bays 7 through 10.
v Make sure that at least one management module is installed and it is active and
working.
v Check the event log, using the management-module Web interface.
v Use the management-module Web interface to make sure that local power
control is enabled for the blade server.
v Make sure that the fault LEDs on the multiplexer expansion modules are not lit.
If a fault LED on a multiplexer expansion module is lit, reseat the module.
v Move the blade server to a known working bay in the BladeCenter HT unit or in
another BladeCenter HT unit.
v Replace the blade server.
Action
1. Make sure that:
v All other fan modules are installed and working.
v At least one management module is installed and it is active and working.
2. Reseat the following components:
a. Multiplexer expansion modules (see "Removing a multiplexer expansion
module" on page 79)
b. Fan modules (see "Removing a fan module" on page 83)
3. Reverse the locations of the fan modules. (If more than two fan modules are
removed or more than two fan modules experience a double fan failure, the
blade servers will shut down within 1 to 3 seconds.)
a. If the same fan module runs at full speed, replace it.
b. If a different fan module in the same bay runs at full speed, call for service.
103
Chapter 5. Diagnostics
Advertisement
Table of Contents
