Dell POWEREDGE E11S Owner's Manual page 39

The password assignment is not case-sensitive. Certain key combinations
are invalid. To erase a character, press <Backspace>.
NOTE:
<Enter> to move to another field, or press <Esc> prior to completing step 5.
4 Press <Enter>.
5 To confirm your password, type it a second time and press <Enter>.
System Password changes to Enabled. Exit the System Setup program and
begin using your system.
6 Either reboot the system now for the password protection to take effect or
continue working.
NOTE:
Using Your System Password to Secure Your System
NOTE:
If you have assigned a setup password (see "Using the Setup Password" on
page 40), the system accepts your setup password as an alternate system
password.
1 Turn on or reboot your system by pressing <Ctrl><Alt><Delete>.
2 Type your password and press <Enter>.
When Password Status is Locked, you must type the password and press
<Enter> when prompted at reboot.
If an incorrect system password is entered, the system displays a message and
prompts you to re-enter your password. You have three attempts to enter the
correct password. After the third unsuccessful attempt, the system displays an
error message that the system has halted and will shut down.
Even after you shut down and restart the system, the error message continues
to be displayed until the correct password is entered.
NOTE:
You can use the Password Status option in conjunction with the System
Password and Setup Password options to protect your system from unauthorized
changes.
To escape from the field without assigning a system password, press
Password protection does not take effect until the system reboots.
Using the System Setup Program and Boot Manager
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