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2. Check for correct Advanced-Management-Module operation (see the
3. Replace the monitor cable, if applicable.
4. Replace the monitor.
5. Replace the Advanced Management Module (see the documentation for your
If these steps do not solve the problem, it is likely a problem with the blade server.
See "Monitor or video problems" on page 173.
Solving undetermined problems
Use this information to diagnose and resolve undetermined issues with the blade
server.
Note: When you are diagnosing a problem in the blade server, you must
determine whether the problem is in the blade server or in the BladeCenter unit.
v If all of the blade servers have the same symptom, the problem is probably in
v If the BladeCenter unit contains more than one blade server and only one of the
If the diagnostic tests did not diagnose the failure or if the blade server is
inoperative, use the information in this section.
If you suspect that a software problem is causing failures (continuous or
intermittent), see "Software problems" on page 183.
Damaged data in CMOS memory or damaged UEFI code can cause undetermined
problems. To reset the CMOS data, remove and replace the battery to override the
power-on password and clear the CMOS memory; see "Removing the battery" on
page 61. If you suspect that the UEFI code is damaged, see "Recovering from a
UEFI update failure" on page 217.
Check the LEDs on all the power supplies of the BladeCenter unit in which the
blade server is installed. If the LEDs indicate that the power supplies are working
correctly and reseating the blade server does not correct the problem, complete the
following steps:
1. Make sure that the control panel connector is correctly seated on the system
226
BladeCenter HS23E Type 8038 and 8039: Problem Determination and Service Guide
Attention: Moving a color monitor while it is turned on might cause screen
discoloration.
Move the device and the monitor at least 305 mm (12 in.) apart. Turn on the
monitor. To prevent diskette drive read/write errors, make sure that the
distance between the monitor and any diskette drive is at least 76 mm (3 in.).
documentation for your BladeCenter unit).
Note: Some BladeCenter unit types have several management-module
components that might have to be tested or replaced (see the Installation Guide
for your Advanced Management Module for more information).
BladeCenter unit).
the BladeCenter unit. For more information, see the Hardware Maintenance
Manual and Troubleshooting Guide or Problem Determination and Service Guide for
your BladeCenter unit.
blade servers has the problem, troubleshoot the blade server that has the
problem.
board (see "Blade server connectors" on page 13 for the location of the
connector).
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