Troubleshooting Tables; Blade Server Problems; Blower Module Problems - IBM 8852 - BladeCenter H Rack-mountable Service Manual

Troubleshooting tables

Use the troubleshooting tables to find solutions to problems that have identifiable
symptoms. If one or more LEDs on the BladeCenter unit or the components is lit,
see "Light path diagnostic LEDs" on page 17.
If you cannot find the problem in these tables, see "Solving undetermined
problems" on page 20.
If you have just added a new optional device and the BladeCenter unit is not
working, complete the following steps before using the troubleshooting tables:
1. Remove the device that you just added.
2. Restart the BladeCenter unit to determine whether the BladeCenter unit is
3. Reinstall the new device.

Blade server 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 blade server power-on LED
flashes rapidly for an extended
amount of time.

Blower 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 blower module is running at
full speed.
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BladeCenter H Type 8852, 7989, and 1886: Problem Determination and Service Guide
working correctly.
Action
v Make sure that at least one management module is installed, and it is active
and working.
v Reseat the blade server.
v Replace the blade server.
Action
1. Make sure that:
v The other blower is installed and working.
v At least one management module is installed, and it is active and working.
2. Reseat the following components:
a. Media tray
b. Blower module
3. Replace the blower module.