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f. If booting on all servers fails using the new media tray, replace the following in the BladeCenter
unit:
v Management module
v Midplane
4. If you are attempting to boot from a hard disk drive.
a. Verify that the hard disk drive is installed.
b. Select the CD or DVD drive as the boot device.
c. Go to "Performing the checkout procedure" on page 177.
d. Reload the operating system onto the hard disk drive if the boot attempts from that disk continue
to fail.
e. Replace the suspect hard disk drive if you are not able to load the operating system.
f. Replace the system-board; then, retry loading the operating system.
Troubleshooting tables
Use the troubleshooting tables to find solutions to problems that have identifiable symptoms.
If these symptoms relate to shared BladeCenter unit resources, see "Solving shared BladeCenter resource
problems" on page 219. If you cannot find the problem in these tables, see "Running the diagnostics
program" on page 179 for information about testing the blade server.
If you have just added new software or a new optional device and the blade server is not working,
complete the following steps before using the troubleshooting tables:
1. Remove the software or device that you just added.
2. Run the diagnostic tests to determine whether the blade server is running correctly.
3. Reinstall the new software or new device.
General problems
Identify general problem symptoms and corrective actions.
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, type 7891," on page 225 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
An LED is not working or a
similar problem has occurred.
Action
If the part is a CRU, replace it. If the part is a FRU, the part must be replaced by a
trained service technician.
183
Chapter 2. Diagnostics
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