Compaq Armada 1700 Reference Manual page 139

Compaq Diagnostics is a utility that inspects computer hardware,
internal system temperature, and the SMART hard drive, then
displays a prefailure warning message upon detecting a system
temperature or hard drive fault.
If you are running Windows 95, access Compaq Diagnostics for
Windows as follows:
1. Double-click My Computer.
2. Double-click Control Panel.
3. Double-click Compaq Diagnostics.
If you are running Windows NT, access Windows NT Diagnostics
by clicking Start, Programs, Administrative tools, then Windows
NT Diagnostics.
There are two ways you can identify and test your system
components: using the Compaq Diagnostics utility or using the
Diagnostics for Windows utility.
Use the Compaq Diagnostics utility to identify and test all
system devices.
Use the Diagnostics for Windows utility to
determine if various computer devices are recognized by
the system and are operating properly.
obtain information about the system once it is configured.