Lenovo ThinkPad T420si (English) User Guide - Page 182

Power On with AC Attach, Enabled, Disabled, Beep and Alarm, Serial ATA SATA

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Table 5. Config menu items (continued) PCI Express Power Management • Disabled • Enabled Power On with AC Attach • Disabled • Enabled Beep and Alarm Power Control Beep • Disabled • Enabled Low Battery Alarm Password Beep • Disabled • Enabled • Disabled • Enabled Serial ATA (SATA) Keyboard Beep SATA Controller Mode Option • Enabled • Disabled • Compatibility • AHCI • RAID 166 User Guide Normally, it is not necessary to change the setting. Enable or disable a feature that automatically adjusts power management when there is no PCI Express activity. Normally, it is not necessary to change the setting. Enable or disable a feature that powers on the system when AC is attached. If you select "Enabled", the system is powered on when AC is attached. When the system is in hibernate state, the system resumes. If you select "Disabled", the system is not powered on nor resumed when AC is attached. If this function is enabled, a beep sounds when the computer enters a power management mode, when it resumes operational mode, and when the ac power adapter is connected or disconnected. Enable or disable the low battery alarm. Enable this option to have a beep sound when the system is waiting for a power-on, hard disk, or supervisor password. Different beeps will be sounded when the entered password matches or does not match the configured password. Enable or disable keyboard beep when unmanageable key combinations are pressed. Select SATA controller operation mode. If your system supports RAID, select "RAID." If you select "Compatibility mode", serial SATA controller operates in compatibility mode.

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Table 5. Config menu items (continued)
Normally, it is not necessary
to change the setting.
PCI Express Power
Management
Disabled
Enabled
Enable or disable a feature
that automatically adjusts
power management when
there is no PCI Express
activity. Normally, it is not
necessary to change the
setting.
Power On with AC Attach
Disabled
Enabled
Enable or disable a feature
that powers on the system
when AC is attached.
If you select “Enabled”, the
system is powered on when
AC is attached. When the
system is in hibernate state,
the system resumes.
If you select “Disabled”, the
system is not powered on
nor resumed when AC is
attached.
Power Control Beep
Disabled
Enabled
If this function is enabled,
a beep sounds when the
computer enters a power
management mode, when it
resumes operational mode,
and when the ac power
adapter is connected or
disconnected.
Low Battery Alarm
Disabled
Enabled
Enable or disable the low
battery alarm.
Password Beep
Disabled
Enabled
Enable this option to have
a beep sound when the
system is waiting for a
power-on, hard disk, or
supervisor password.
Different beeps will be
sounded when the entered
password matches or does
not match the configured
password.
Beep and Alarm
Keyboard Beep
Enabled
Disabled
Enable or disable keyboard
beep when unmanageable
key combinations are
pressed.
Serial ATA (SATA)
SATA Controller Mode
Option
Compatibility
AHCI
RAID
Select SATA controller
operation mode. If your
system supports RAID,
select “RAID.” If you select
“Compatibility mode”,
serial SATA controller
operates in compatibility
mode.
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User Guide