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Chapter 6. Troubleshooting
Use this information to diagnose and correct problems that might occur in your
IBM Flex System x440 Compute Node.
The information in this section describes tools and procedures for solving
hardware and software problems. If you cannot diagnose and correct a problem by
using the information, see "Getting help and technical assistance," on page 555 for
more information.
Service bulletins
IBM continually updates the support website with tips and techniques that you
can use to solve problems that you might have with the IBM Flex System x440
Compute Node.
To find service bulletins that are available for the IBM Flex System x440 Compute
Node, go to http://www.ibm.com/supportportal/ and search for the terms 7917 or
2584 and retain.
Diagnostic tools
Use this information to review the diagnostic tools to diagnose and solve
hardware-related problems.
Light path diagnostics
Use this information as an overview of light path diagnostics.
Light path diagnostics is a system of LEDs above the control panel and on various
internal components of the compute node. When an error occurs, LEDs can be lit
throughout the compute node to help identify the source of the error.
Viewing the light path diagnostics LEDs
Use this information to locate and identify the light path diagnostics LEDs.
Before you work inside the compute node to view light path diagnostics LEDs,
read "Safety" on page v and "Installation guidelines" on page 487.
If an error occurs, view the light path diagnostics LEDs in the following order:
1. Look at the control panel on the front of the compute node.
© Copyright IBM Corp. 2012
KVM connector
USB connector
v If the check log LED is lit, it indicates that an Automatic BIOS Recovery has
occurred. The compute node will start by using the backup UEFI image.
Hard disk drive
Hard disk drive
activity LED
status LED
Power
Identify
Check log
button/LED
LED
LED
Fault
LED
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Table of Contents
Troubleshooting
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