Toshiba Satellite A40 Maintenance Manual page 184

3.23 SETUP
NOTE: In boot mode, the System Auto Off (*1) item does not appear.
Display of the LCD Brightness will be changed in the condition below:
(*2) Operating the battery
(*3) Using the AC adapter
User Setting
(a) Battery Save Options
Processing Speed
This feature changes the CPU processing speed.
High
Low
CPU Sleep Mode
Use this option to enable or disable the CPU sleep function.
Enabled
Disabled
Display Auto Off
Use this option to disable or set the duration of the display automatic power off
function. This function causes the computer to turn the LCD panel's illumination off
if you make no entry (including no operation of a mouse or touch pad) for the set
period of time.
Disabled
xx Min.
Satellite A40 Maintenance Manual (960-458)
Use this option to set the battery save parameters on
the sub-window, BATTERY SAVE OPTIONS. For
details, see Battery Save Options below.
CPU operates at 2.66/2.80/3.06/3.20GHz (Pentium 4
Northwoood)
2.66/2.80/3.06/3.20/3.46GHz (Pentium 4 Prescott)
2.40/2.60/2.60/2.70GHz (Celeron)
(Default in Full Power Mode)
CPU operates at half processing speed.
(Default in Low Power Mode)
Enables sleep mode. (Default)
Disables sleep mode.
Disables display automatic power off.
Automatically turns off the power to the LCD panel's
illumination if the panel is not used for the duration set.
3 Tests and Diagnostics
3-57