Lenovo PC 300PL User guide for IBM PC300PL (type 6584, 6594) systems - Page 66

Setting power-management features

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Important Some optional adapters might not wake up properly from standby mode S3. If your computer appears to be hung in standby, press and hold the power switch for 5 seconds. Your computer will exit standby mode and turn off. Press the power switch to turn the computer back on. If you encounter a problem with Standby Mode S3, set this option to S1 and find out if updated device drivers that support Standby Mode S3 are available for your optional adapters. Setting power-management features Important If your computer has only USB devices connected, you might not be able to wake the system once it has gone to a low-power state. With power management, the computer and monitor (if the monitor supports DPMS) can be set to go into a reduced power state if they are inactive for a specified length of time. Time to Low Power: When you enable Automatic Hardware Power Management, you can use this option to specify the amount of time that the computer must be inactive before power-management features are activated. System Power: You can select On if you want the computer to remain on, or Off if you want the computer to shut down. Display: You can use this option to select one of the following reduced-power states: - Standby: In this mode, the screen is blanked, but the screen image is restored immediately when any activity is detected. - Suspend: In this mode, the monitor uses less power than in Standby mode. The screen is blanked, but the screen image is restored within a few seconds after any activity is detected. - Off: In this mode, the monitor power is turned off. To restore power to the monitor, you must press the monitor power switch. On some monitors, you might have to press the power switch twice. If Off is selected, you must specify the Time to Display 'Off'. You can select 5 minutes to 1 hour. Note: Time to display off is the amount of time from when the reduced-power state begins until the display turns off. 52 PC 300PL User Guide

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Important
Some optional adapters might not wake up properly from standby
mode S3.
If your computer appears to be hung in standby, press and
hold the power switch for 5 seconds.
Your computer will exit standby
mode and turn off.
Press the power switch to turn the computer back
on.
If you encounter a problem with Standby Mode S3, set this option to S1
and find out if updated device drivers that support Standby Mode S3
are available for your optional adapters.
Setting power-management features
Important
If your computer has only USB devices connected, you might not be
able to wake the system once it has gone to a low-power state.
With power management, the computer and monitor (if the monitor
supports DPMS) can be set to go into a reduced power state if they are
inactive for a specified length of time.
±
Time to Low Power:
When you enable
Automatic Hardware Power
Management
, you can use this option to specify the amount of time
that the computer must be inactive before power-management features
are activated.
±
System Power:
You can select
On
if you want the computer to remain
on, or
Off
if you want the computer to shut down.
±
Display:
You can use this option to select one of the following
reduced-power states:
–
Standby:
In this mode, the screen is blanked, but the screen image
is restored
immediately
when any activity is detected.
–
Suspend:
In this mode, the monitor uses less power than in
Standby mode.
The screen is blanked, but the screen image is
restored
within a few seconds
after any activity is detected.
–
Off:
In this mode, the monitor power is turned off.
To restore
power to the monitor, you must press the monitor power switch.
On some monitors, you might have to press the power switch
twice.
If
Off
is selected, you must specify the
Time to Display 'Off'
.
You
can select 5 minutes to 1 hour.
Note:
Time to display off
is the amount of time from when the
reduced-power state begins until the display turns off.
52
PC 300PL User Guide