User's Manual

61 - Starting Your LIFEBOOK Tablet PC
When you power on your LIFEBOOK, it will perform a Power On Self Test (POST) to check the internal
parts and configuration for correct functionality. If a fault is found, your LIFEBOOK Tablet PC will emit
an audio warning and/or an error message will be displayed. See “Power On Self Test Messages” on
page 97. Depending on the nature of the problem, you may be able to continue by starting the operating
system or by entering the BIOS setup utility and revising the settings.
After satisfactory completion of the POST, your Tablet PC will load your operating system.
Boot Sequence
The procedure for starting-up your Tablet PC is termed the Bootup sequence and involves your Tablet
PC’s BIOS. When your LIFEBOOK Tablet PC is first turned on, the main system memory is empty, and
it needs to find instructions to start up your Tablet PC. This information is in the BIOS program. Each time
you power up or restart your Tablet PC, it goes through a boot sequence which displays a Fujitsu logo until
your operating system is loaded. During booting, your Tablet PC is performing a standard boot sequence
including a Power On Self Test (POST). When the boot sequence is completed without a failure and
without a request for the BIOS Setup Utility, the system displays the operating system’s opening screen.
• PRE-BOOT AUTHENTICATION (PBA) ALLOWS YOU TO LOG IN PRIOR TO WINDOWS' OWN AUTHENTICATION,
BEFORE THE SYSTEM BOOTS UP. A PBA ENVIRONMENT SERVES AS AN EXTENSION OF THE BIOS OR BOOT
FIRMWARE AND ALLOWS FOR A MORE SECURE ENVIRONMENT EXTERNAL TO THE OPERATING SYSTEM. IT’S ONE
MORE LAYER OF SECURITY TO PROTECT YOUR VALUABLE DATA. PBA REDUCES THE RISK OF MALICIOUS
ATTACKERS GAINING ACCESS TO YOUR DATA BY NOT LOADING THE OPERATING SYSTEM UNTIL THE USER IS
AUTHENTICATED.
• DO NOT CARRY YOUR LIFEBOOK TABLET PC AROUND WITH THE POWER ON OR SUBJECT IT TO SHOCKS OR
VIBRATION, AS YOU RISK DAMAGING YOUR TABLET PC.
NEVER TURN OFF YOUR LIFEBOOK TABLET PC DURING THE POWER ON SELF TEST (POST) OR IT
WILL CAUSE AN ERROR MESSAGE TO BE DISPLAYED WHEN YOU TURN YOUR LIFEBOOK TABLET PC ON
THE NEXT TIME. See “Power On Self Test Messages” on page 97.
Sparrow T580.book Page 61 Friday, October 1, 2010 9:11 AM
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