Chapter 8. Determining Hardware Problems
This chapter provides information on using Standalone or Online Diagnostics to help
you solve hardware problems. In addition, it provides a list of error codes and
recommended actions you can take to resolve the problem before contacting a
service representative.

Problem Determination Using the Standalone or Online Diagnostics

Use this procedure to obtain a service request number (SRN) when you are able to
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 8-11. 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 serial port 1.
This procedure asks you to select the type of diagnostics you want to run. If you
need more information about the types, see “Standalone and Online Diagnostics
Operating Considerations” on page 5-1.
Go to “Step 2.”

Step 2

Are the Online Diagnostics installed on this system?
NO Go to “Step 15.”
YES Go to “Step 3.”
Copyright IBM Corp. 1999 8-1