From the Diagnostics Diskette (Model MXT)
If the diagnostic program is started from the diagnostics diskette, you will not have the option to test the Micro Channel options installed in the computer.
The Diagnostics Diskette is bootable. The procedure for starting the Diagnostics Diskette when servicing a Type 8639 server is the same for all models. See 'General Checkout (Type 8639, Model OXT)'
