DELL 100-Mbps User Manual

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Dell OptiPlex GXpro Systems Service Manual

To start the diagnostics, turn off the system unit, insert a diagnostics diskette 
into drive A, and then turn on the system unit.

Starting the diagnostics causes the Dell logo screen to appear on the monitor 
screen, followed by a message indicating that the diagnostics is loading.  Before 
the diagnostics loads, a program tests the portion of main memory (RAM) 
required for loading the diagnostics.  If a RAM error is detected, a message 
appears on the screen telling you which DIMM has failed.

If no errors are found in RAM, the diagnostics loads and the Diagnostics Menu 
appears.  This menu lets you choose the following options or exit to the 
MS-DOS prompt:

Run Quick Tests — Runs selected tests from all test groups to quickly 
locate a failure or to indicate where further testing is needed to isolate a 
failure

Run All Tests — Runs all tests for a thorough test of the system

Run Specific Tests — Tests a particular area or subsystem

If none of the troubleshooting procedures in this chapter or the tests in the dis-
kette-based diagnostics reveals the source of the problem or leads to the proper 
troubleshooting steps for determining the source of the problem, call Dell for 
technical assistance.  For instructions, see the chapter titled “Getting Help” in 
the Diagnostics and Troubleshooting Guide.