Compaq AlphaServer GS60E Service Manual page 53

You enter the command test to test the entire system using exercisers resident
in ROM on the boot processor module. No module self-tests are executed when
the test command is issued without a mnemonic.
When you specify a subsystem mnemonic or a device mnemonic with test, such
as test pci0 or test ms7cc0, self-tests are executed on the associated modules
first and then the appropriate exercisers are run.
Console Display and Diagnostics 3-7