When The Server Blade Does Not Start - HP ProLiant BL20p Generation 3 User Manual

Server Blade Troubleshooting

When the Server Blade Does Not Start

This section provides systematic instructions on what to try and where to go for help
for the most common problems encountered during initial POST. The server blade
must first complete this test each time you power up, before it can load the operating
system and start running software applications.
IMPORTANT: Always be sure that you have adequate system power applied to all the rack
components before troubleshooting the server blade. You may need to add more hot-plug
power supplies if you are installing additional server blades. If you have a power problem, refer
to the HP ProLiant BL p-Class System Setup and Installation Guide and the HP ProLiant BL
p-Class System Overview and Planning white paper.
If the server blade does not start:
1. Be sure that the server blade is fully seated in the server blade enclosure.
2. Verify that power is applied to the server blade enclosure.
3. Be sure that power is applied to the server blade:
a. Check the status using the power on/standby LED. For the location and
explanation of the power on/standby LED, refer to the "Server Blade Front
Panel" section in Chapter 1, "Server Blade Component Identification."
b. Check the server blade management modules and power management
modules for proper cabling and power configuration switch settings.
c. The server blade is configured to power up upon insertion. However, if you
changed that setting, be sure that the Power On/Standby button was pressed
firmly.
NOTE: A long press, 5 or more seconds, initiates a power-up override. The system is
forced to power up the server blade without detecting available power.
4. If the system does not complete POST or start loading an operating system:
a. Use the iLO remote console, the video connection provided through the local
I/O cable connectors, or the iLO system status page to identify POST
messages. Refer to the HP Integrated Lights-Out User Guide.
b. Refer to the HP ProLiant Servers Troubleshooting Guide.
A-2 HP ProLiant BL20p Generation 3 Server Blade User Guide