Epson EL 486UC - Manual (Page 46)

If resetting the computer does not solve the problem, you need
to turn it off and on again. Remove any diskette(s) from the
diskette drive(s), turn off the computer, and wait 20 seconds. If
you do not have a hard disk drive, insert a bootable diskette in
drive A. Then turn on the computer.
Using a Password
In SETUP, you can define both a Supervisor level password
and a User level password. You can also specify whether a
password is required when you boot the system. This
password can also control access to the diskette drives.
If `you enabled the Password on boot option in SETUP, you
must enter the Supervisor or User password every time you
turn on or reset the computer. If you entered a password but
disabled the Password on boot option, you must enter the
password when you start SETUP.
If you set the Diskette Access option to Supervisor, you
can access a diskette drive only if you entered a Supervisor
password when you started the system. If you entered a User
password but the Diskette Access option is set to
Supervisor, you see an error message when you cannot
access the diskette drive.
When you enter your password, you’ll see the prompt, Enter
password:. As you type your password, you see a rectangle
for each character you type. When you press Enter, the
computer loads the operating system (or starts SETUP).
If you don’t enter the correct password the first time you type
it, you can try two more times. If you haven’t entered the
correct password on the third try, the computer locks up to
prevent unauthorized access. You see the message:
S y s t e m D i s a b l e d !
Using Your Computer 3-5