Chapter 6. Solving Problems - IBM LS20 - BladeCenter - 8850 Installation And User Manual

Chapter 6. Solving problems

This section provides basic information about the diagnostic tools available to help
you solve some common problems that might occur while setting up the blade
server.
If you install the blade server in the BladeCenter unit and the blade server does not
start up, check the following:
v Make sure that the BladeCenter unit is properly connected to a power source.
v Reseat the blade server in the BladeCenter unit (see "Installing the blade server
v Status of the power-on LED:
v If you have just added a new option or component, make sure that it is properly
If the blade server does not start up after verifying the above actions, see the
Problem Determination and Service Guide on the Documentation CD.
The following tools are available to help you diagnose and solve hardware-related
problems:
v POST beep codes and error messages
v Problem isolation tables
© Copyright IBM Corp. 2006
in a BladeCenter unit" on page 30).
– If the LED is flashing slowly, turn on the blade server (see "Turning on the
blade server" on page 11).
– If the LED is lit continuously, make sure that the KVM select button is lit. If the
KVM button is not lit, see "The control panel buttons and LEDs" on page 12
for more information.
installed and compatible with the blade server and its components. If the option
or component is not compatible, remove it from the blade server, reinstall the
blade server in the BladeCenter unit, and then restart the blade server.
Note: Microprocessors can only be removed by a trained service technician.
The power-on self-test beep codes indicate the detection of a problem.
– One beep indicates successful completion of POST.
– Repeating long beeps indicate a memory error has occurred. Make sure that
all DIMMs are correctly installed.
– Any other combination of beeps indicates that POST detected a problem.
Error messages also appear during startup if POST detects a
hardware-configuration problem. Make sure any devices you might have installed
are correctly installed.
See the Problem Determination and Service Guide for your blade server for more
information about POST beep codes and error messages.
Use the problem isolation tables to find solutions to problems with definite
symptoms. These tables are in the Problem Determination and Service Guide for
your blade server.
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