Lenovo ThinkPad T420 (English) BIOS Setup using Windows Management Instrumenta - Page 21

Typical, usage

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Chapter 3. Typical usage Through WMI, you can configure BIOS settings in the following ways: • List BIOS settings • Change BIOS settings • Change the boot order (sometimes referred to as the startup sequence) • Load default BIOS settings Listing current BIOS settings For a list of all available BIOS settings that can be changed through WMI on a specific computer, use the Lenovo_BiosSetting class (see "List all BIOS settings on the local computer" on page 17 and "List all BIOS settings on the remote computer" on page 20 for sample scripts). See Table 4 "List of available BIOS settings" on page 5 for a list of available BIOS settings. Changing BIOS settings To change a BIOS setting, complete the following steps: 1. Identify the BIOS setting you want to change using the Lenovo_BiosSetting class (see "List all BIOS settings on the local computer" on page 17 and "List all BIOS settings on the remote computer" on page 20 for sample scripts). 2. Identify the value to which the setting will be changed. Note: See Table 4 "List of available BIOS settings" on page 5 for a list of available values for a particular setting. 3. Change the BIOS setting to the desired value using the Lenovo_SetBiosSetting class, then use the Lenovo_SaveBiosSetting class to save the settings (see "Set a single BIOS setting on the local computer" on page 18 and "Set a single BIOS setting on a remote computer" on page 20 for sample scripts). Note: BIOS settings and values are case sensitive. After making changes to the BIOS settings, you must reboot the computer before the changes will take effect. Changing the boot order To change the boot order, complete the following steps: 1. Determine the current setting for "BootOrder" by using the Lenovo_BiosSetting class (see "List all BIOS settings on the local computer" on page 17 and "List all BIOS settings on the remote computer" on page 20 for sample scripts). 2. To set a new boot order, use the Lenovo_SetBiosSetting class, then use the Lenovo_SaveBiosSetting class to save the settings (see "Set a single BIOS setting on the local computer" on page 18 and "Set a single BIOS setting on a remote computer" on page 20 for sample scripts). Specify a new boot order by listing the boot devices in order, separated by colons. Devices that are not specified are excluded from the boot order. In the following example, the CD drive 0 is the first boot device and hard disk drive 0 is the second startup device. ATAPICD0:HDD0 © Copyright Lenovo 2008, 2012 13

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Chapter
3.
Typical
usage
Through
WMI,
you
can
con±gure
BIOS
settings
in
the
following
ways:
•
List
BIOS
settings
•
Change
BIOS
settings
•
Change
the
boot
order
(sometimes
referred
to
as
the
startup
sequence)
•
Load
default
BIOS
settings
Listing
current
BIOS
settings
For
a
list
of
all
available
BIOS
settings
that
can
be
changed
through
WMI
on
a
speci±c
computer,
use
the
Lenovo_BiosSetting
class
(see
“List
all
BIOS
settings
on
the
local
computer”
on
page
17
and
“List
all
BIOS
settings
on
the
remote
computer”
on
page
20
for
sample
scripts).
See
Table
4
“List
of
available
BIOS
settings”
on
page
5
for
a
list
of
available
BIOS
settings.
Changing
BIOS
settings
To
change
a
BIOS
setting,
complete
the
following
steps:
1.
Identify
the
BIOS
setting
you
want
to
change
using
the
Lenovo_BiosSetting
class
(see
“List
all
BIOS
settings
on
the
local
computer”
on
page
17
and
“List
all
BIOS
settings
on
the
remote
computer”
on
page
20
for
sample
scripts).
2.
Identify
the
value
to
which
the
setting
will
be
changed.
Note:
See
Table
4
“List
of
available
BIOS
settings”
on
page
5
for
a
list
of
available
values
for
a
particular
setting.
3.
Change
the
BIOS
setting
to
the
desired
value
using
the
Lenovo_SetBiosSetting
class,
then
use
the
Lenovo_SaveBiosSetting
class
to
save
the
settings
(see
“Set
a
single
BIOS
setting
on
the
local
computer”
on
page
18
and
“Set
a
single
BIOS
setting
on
a
remote
computer”
on
page
20
for
sample
scripts).
Note:
BIOS
settings
and
values
are
case
sensitive.
After
making
changes
to
the
BIOS
settings,
you
must
reboot
the
computer
before
the
changes
will
take
effect.
Changing
the
boot
order
To
change
the
boot
order,
complete
the
following
steps:
1.
Determine
the
current
setting
for
“BootOrder”
by
using
the
Lenovo_BiosSetting
class
(see
“List
all
BIOS
settings
on
the
local
computer”
on
page
17
and
“List
all
BIOS
settings
on
the
remote
computer”
on
page
20
for
sample
scripts).
2.
To
set
a
new
boot
order,
use
the
Lenovo_SetBiosSetting
class,
then
use
the
Lenovo_SaveBiosSetting
class
to
save
the
settings
(see
“Set
a
single
BIOS
setting
on
the
local
computer”
on
page
18
and
“Set
a
single
BIOS
setting
on
a
remote
computer”
on
page
20
for
sample
scripts).
Specify
a
new
boot
order
by
listing
the
boot
devices
in
order,
separated
by
colons.
Devices
that
are
not
speci±ed
are
excluded
from
the
boot
order.
In
the
following
example,
the
CD
drive
0
is
the
±rst
boot
device
and
hard
disk
drive
0
is
the
second
startup
device.
$7$3,&'±²+''±
©
Copyright
Lenovo
2008,
2012
13