Epson 486SX - Manual (Page 44)

Note
If a password already exists, this message appears:
Power-on password already installed
The Setup program does not allow you to enter a new
password if you have already set one. However, you can
easily change or delete the current password if you
know it. See “Using a Power-on Password” in Chapter 3
for instructions.
4. To enter a password, type any combination of characters
(including letters, numbers, and blank spaces) up to a total
of seven characters. You can use the backspace key to delete
mistakes.
Do not use characters requiring the key, such as $,
or in your password. The computer does not recognize
the key when you use your password to access the
system.
Caution
Be sure to remember the password you enter or write it
down and keep it in a safe place. If you cannot
remember your password, you will not be able to access
the computer the next time you turn it on.
If you want to return to the password submenu without
saving any changes, press
5. After you enter a password, press to return to the
password submenu.
2-10 Running the Setup Program