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Chapter 8. Hardware Problem Determination
This chapter provides information on using Standalone or Online diagnostics to help
you solve hardware problems.
Problem Determination Using the Standalone or Online Diagnostics
Use this procedure to obtain a service request number (SRN) when you load the
Standalone or Online Diagnostics. If you are unable to load the Standalone or Online
Diagnostics, go to "Problem Determination When Unable to Load Diagnostics" on
page 124. The service organization uses the SRN to determine which field replaceable
units (FRUs) are needed to restore the system to correct operation.
Step 1. Considerations before Running This Procedure
Note: See the operator manual for your ASCII terminal to find the key sequences you
v The diagnostics can use a display connected to the video port or an ASCII terminal
attached to a serial port.
v This procedure requires that you select the type of diagnostics you want to run. If
you need more information about the types, see "Online and Standalone Diagnostics
Operating Considerations" on page 73.
v Go to "Step 2".
Step 2
Are the Online Diagnostics installed on this system?
NO
YES
Step 3
Determine if the operating system is accepting commands.
Is the operating system accepting commands?
NO
YES
Step 4
Diagnostic tests can be run on many resources while the operating system is running.
However, you can obtain more extensive problem isolation by running Online
Diagnostics in Service mode.
need to respond to the diagnostic programs.
Go to "Step 15" on page 123.
Go to "Step 3".
The system must be turned off before you can run diagnostics.
Verify with the system administrator and users that the system may
be turned off. If so, turn off the system unit and go to "Step 6" on
page 120.
Go to "Step 4".
119
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