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.
•
P
RE
-
BOOT
A
UTHENTICATION
(PBA)
ALLOWS
YOU
TO
LOG
IN
PRIOR
TO
W
INDOWS
'
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
. I
T
’
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
.
•
D
O
NOT
CARRY
YOUR
LIFEBOOK T
ABLET
PC
AROUND
WITH
THE
POWER
ON
OR
SUBJECT
IT
TO
SHOCKS
OR
VIBRATION
,
AS
YOU
RISK
DAMAGING
YOUR
T
ABLET
PC.
N
EVER
TURN
OFF
YOUR
LIFEBOOK T
ABLET
PC
DURING
THE
P
OWER
O
N
S
ELF
T
EST
(POST)
OR
IT
WILL
CAUSE
AN
ERROR
MESSAGE
TO
BE
DISPLAYED
WHEN
YOU
TURN
YOUR
LIFEBOOK T
ABLET
PC
ON
THE
NEXT
TIME
.
See “Power On Self Test Messages” on page 97.
Sparrow T580.book Page 61 Thursday, December 2, 2010 2:07 PM