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 164. 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 need to respond to the diagnostic programs.
The diagnostics can use a display connected to the video port or an ASCII
terminal attached to a serial port.
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 95.
Go to “Step 2.”

Step 2

Are the Online Diagnostics installed on this system?
NO Go to “Step 15” on page 162.
YES Go to “Step 3” on page 156.
Chapter 8. Hardware Problem Determination 155