When the supervisor password is set a prompt appears

• When the Supervisor Password is set, a prompt appears when you
enter the BIOS utility.
• Type the Supervisor Password and press < Enter > to access the
BIOS utility. If you enter the password incorrectly, a warning
message appears. Try again and press < Enter >.
• When the User Password is set and the password on boot
parameter is enabled, a prompt appears at boot-up.
• Type the User Password and press < Enter > to use the computer. If
you enter the password incorrectly, a warning message appears. Try
again and press < Enter >.
Important
You have three chances to enter a password. If you fail to enter the
password correctly after three tries, the system halts. Press and hold
the power button for four seconds to shut down the computer. Then
turn on the computer again, and try again.

44 - Power management
P
OWER MANAGEMENT
This computer has a built-in power management unit that monitors
system activity. System activity refers to any activity involving one or
more of the following devices: keyboard, mouse, hard disk,
peripherals connected to the computer, and video memory. If no
activity is detected for a period of time, the computer stops some or all
of these devices in order to conserve energy.
Saving power
Disable Fast startup
Your computer uses Fast startup to start quickly, but also uses a small
amount of power to check for signals to start. These checks will slowly
drain your computer’s battery.
If you prefer to reduce your computer’s power requirements and
environmental impact, turn off Fast startup:
1.Open the desktop.
2.Click Power Options in the Notification area.
3.Select More Power Options .
4.Select Choose what the power buttons do .
Note
If Fast startup is off, your computer will take longer to start from Sleep.
Your computer will also not start if it receives an instruction to start over a
network (Wake on LAN).

Power management - 45
5.Select Change settings that are currently unavailable .
6.Scroll down and disable Turn on fast startup.
7.Select Save changes .

46 - Battery pack
B
ATTERY PACK
The computer uses a Lithium battery that gives you long use between
charges.
Battery characteristics
The battery is recharged whenever you connect the computer to the
AC adapter. Your computer supports charge-in-use, enabling you to
recharge the battery while you continue to operate the computer.
However, recharging with the computer turned off significantly
reduces charge time.
The battery will come in handy when you travel or during a power
failure. It is advisable to have an extra fully charged battery available
as backup. Contact your dealer for details on ordering a spare battery.
Charging the battery
To charge the battery, first make sure that it is correctly installed in the
battery bay. Plug the AC adapter into the computer, and connect to a
mains power outlet. You can continue to operate your computer on
AC power while your battery is charging. However, charging the
battery with the computer turned off significantly reduces charge time.