420 Series 3-65
LCD Brightness
Use this option to set the level of LCD brightness.
Bright Full brightness for maximum visibility.
Semi-Bright Less than full brightness for saving power.
Cooling method
Performance If the CPU becomes too hot, the fan is turned on
automatically. The CPU processing speed does not
change. When the CPU temperature falls to a
normal range, the fan is turned off.
Quiet Fan operation is disabled. If the CPU becomes too hot,
the processing speed is lowered. When the CPU
temperature falls to a normal range, the processing
speed is increased.
(e) Alarm Volume
Disables or sets the volume level of the alarm. Setting this option to off
disables the computer’s sound function for alarms. This option can also be
set by hotkeys.
Off Disables the alarm.
Low Sets the alarm volume to low.
Medium Sets the alarm volume to medium.
High Sets the alarm volume to high. (Default)
When Alarm Volume is selected, the subwindow below is displayed to let
you enable or disable certain functions.
ALARM VOLUME OPTIONS
Low BATTERY Alarm = Enabled
Panel Close Alarm = Enabled
Enabled Enables the feature. (Default)
Disabled Disables the feature.
(f) System Beep
Use this feature to enable or disable the system beep.
Enabled Enables the feature. (Default)
Disabled Disables the feature.
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