Lenovo BladeCenter HS23 1929, Руководство по диагностике и обслуживанию

Страница: 278 / 299

• The power-on LED on the blade server flashes slowly before you press the power-control button.
Note: While the service processor in the blade server is initializing and synchronizing with the
management module, the power-on LED flashes rapidly, and the power-control button on the blade server
does not respond. This process can take approximately two minutes after the blade server has been
installed.
• The BladeCenter unit blowers are correctly installed and operational.
If these procedures do not solve the problem, it is likely a problem with the blade server. See “Power error
messages” on page 195 and “Power problems” on page 198.
Video problems
Use this information to diagnose and resolve video issues .
To check for video problems, complete the following steps until the problem is solved:
Step 1. Make sure that:
• Both the blade server and the monitor are turned on, and the monitor brightness and contrast
controls are correctly adjusted.
• The keyboard/video/mouse select button LED on the front of the blade server is lit, indicating
that the blade server is connected to the shared BladeCenter monitor.
• The video cable is securely connected to the BladeCenter Advanced Management Module. Non-
IBM monitor cables might cause unpredictable problems.
• The monitor works with another blade server.
• Some IBM monitors have their own self-tests. If you suspect a problem with the monitor, see the
information that comes with the monitor for instructions for adjusting and testing the monitor. If
the monitor self-tests show that the monitor is working correctly, consider the location of the
monitor. Magnetic fields around other devices (such as transformers, appliances, fluorescent
lights, and other monitors) can cause screen jitter or wavy, unreadable, rolling, or distorted
screen images. If this happens, turn off the monitor.
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.).
Step 2. Check for correct Advanced-Management-Module operation (see the 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).
Step 3. Replace the monitor cable, if applicable.
Step 4. Replace the monitor.
Step 5. Replace the Advanced Management Module (see the documentation for your BladeCenter unit).
If these steps do not solve the problem, it is likely a problem with the blade server. See “Monitor or video
problems” on page 192.
Solving undetermined problems
Use this information to diagnose and resolve undetermined issues with the blade server.
262
BladeCenter HS23 Blade ServerProblem Determination and Service Guide