Table of Contents
Advertisement
Chapter 5 — Power Saving Modes
Power Saving Modes
Adjust the default power management settings in the Power Management dialog box in the Control Panel. The
Power Management dialog box allows you to set different actions to take when the computer is left idle for a
certain amount of time.
Suspend Mode
There are several possible settings for suspend mode, which can be selected in the Power Management dialog
box: You may have the notebook standby, hibernate, or you can shutdown the computer altogether.
Standby
Hibernate
Shutdown
All devices are powered up except for the clock synthesizer. The Host and PCI clocks are
inactive and Banister provides control signals and 32-kHz Suspend Clock (SUSCLK) to
allow for DRAM refresh and to turn off the clock synthesizer. The only power consumed in
the system is due to DRAM Refresh and leakage current of the powered devices.
When the system resumes from POS. Banister can optionally resume without resetting the
system, can reset the processor only, or can reset the entire system. When no reset is
performed. Banister only needs to wait for the clock synthesizer and processor PLLs to
lock before the system is resumed. This takes typically 20 ms.
Suspend to Disk is similar to turning off the computer, except that the current state of the
computer is copied to the hard disk as a special file. When the computer returns from
suspend mode, the desktop appears with the same files and programs open as when the
computer was suspended. Suspend to Disk is very useful when you don't want to take the
time to shut down all open programs one by one to shut off the computer, only to have to
open the same programs and files the next time you use the computer. This mode is also
called hibernation mode.
Suspend-to-disk Partition/Suspend-to-disk File
In order to Suspend to Disk, you must have a special suspend-to-disk partition/file on your
hard disk drive. This partition file is pre-installed on your computer. The pre-installed
partition file is large enough to store all system memory.
System is powered off.
56
Advertisement
Table of Contents
