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Cisco Wide Area Application Engine 7326 Hardware Installation Guide
OL-6831-02
Chapter 5 Troubleshooting the System Hardware
Using the System Diagnostic Programs
Using the System Diagnostic Programs
The device diagnostic programs are stored in upgradable read-only memory
(ROM) on the system board. These programs are the primary method of testing
the following major components of the device: the system board, Ethernet
controller, RAM, serial ports, and hard disk drives. You can also use the
diagnostic programs to test some external devices. See the “Diagnostic Programs
and Error Messages” section on page 5-7.
If you cannot determine whether a problem is caused by the hardware or by the
software, you can run the diagnostic programs to confirm that the hardware is
working properly.
When you run the diagnostic programs, a single problem might cause several error
messages. When this occurs, work to correct the cause of the first error message.
After the cause of the first error message is corrected, the other error messages
might not occur the next time you run the test.
When troubleshooting, note the following points:
• If multiple error codes are displayed, diagnose the first error code that is
displayed.
• If the computer stops with a POST error, go to the “POST Error Codes”
section on page 5-52.
• If the computer stops and no error message is displayed, go to the
“Undetermined Problems” section on page 5-25.
• For power supply problems, see the “Power Supply LED Errors” section on
page 5-50.
• For safety information, see Chapter 2, “Preparing to Install the Wide Area
Application Engine.”
• For intermittent problems, check the error log.
Diagnostic Tools Overview
The following tools are available to help you identify and resolve
hardware-related problems:
• POST beep codes and error messages