IBM 704 - Manual (Page 62)

Setup Program
Disabling the Diskette Drive
After configuring the system, you might prefer to secure the system
against casual or unauthorized access by running the Setup program
to disable the diskette drive. This is especially useful in securing
the System Configuration Utility program, which is provided on
diskette. You can disable the diskette drive through the Setup
program:
1. Turn on the server.
2. Press F1 to enter the Setup program.
3. Select Main from the menu bar.
4. Select Floppy Options.
5. Select the drive that you want to disable.
6. Press Esc or move the cursor to the Exit option on the menu
bar.
7. Select Exit from the menu bar.
8. Select Exit Saving Changes.
44 PC Server 704 User's Handbook