Toshiba Portege Z830 - Manual (Page 77)

Power supply mode settings
Your PC has multiple charging modes so that many different USB devices
can be supported for Sleep and Charge function. Auto Mode (Default) is
suitable for a wide range of digital audio players.
However, determining which mode is suitable for your USB device is
unknown without trying. Try each mode, using the following procedure,
from Auto Mode to Alternate Mode to find the suitable mode for your USB
device to charge.
This function may not be able to be used with some connected external
devices even if the appropriate mode is selected. In this situation, clear the
"Enable Sleep and Charge" check box and stop using this function.
Battery Settings
This utility can be used to specify the lower limit of remaining battery life for
Sleep and Charge. Move the slider bar to specify the lower limit. If the
remaining battery life falls below the setting, the Sleep and Charge function
will be stopped. Clearing the "Enable under Battery Mode" check box sets
the utility to only charge when the AC adaptor is connected.
Using the TOSHIBA Face Recognition
TOSHIBA Face Recognition uses a face verification library to verify the
face data of users when they log in to Windows. The user can thus avoid
having to enter a password or the like, which makes the login process
easier.
TOSHIBA Face Recognition does not guarantee the correct
identification of a user. Changes to the likeness of a registrant, such
as hair style changes, wearing a cap, or wearing glasses may effect
the recognition rates when such changes occur after the registrant had
registered.
TOSHIBA Face Recognition may incorrectly recognize faces that are
similar to a registrant.
For high security purposes, TOSHIBA Face Recognition is not a
suitable substitute for Windows passwords. When security is a high
priority, use your established Windows passwords to log in.
Bright background light and/or shadows may prevent a registrant from
being recognized correctly. In that case, log in using your Windows
password. If recognition of a registrant fails repeatedly, refer to your
computer documentation to learn ways to improve recognition
performance.
TOSHIBA Face Recognition records face data in a log when face
recognition fails. When transferring ownership or disposing of your
computer, please uninstall the application or delete all the logs created
by the application. For details on how to do this, see help file.
Portégé Z830 / Satellite Z830
User's Manual 4-10