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Maintenance &
Service Guide
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The following power management features are available for conserving AC power and extending battery operating time: Advanced Power Management (APM)APM is installed on the computer and requires no action from the user to reduce power consumption. APM turns off the processor between keystrokes and when the system is idle. The idle function can be disabled by the user. Power Management SettingsYou can select power conservation settings through Power Management located on the System Features menu in Computer Setup. Computer Setup can be accessed by pressing F10 when the cursor blinks on the upper-right corner of the display screen during system reboot. These settings control the power conservation rate and the timeout values for various system components. A timeout is a specified period of system or component inactivity. After this period, the system or component (for example, the hard drive) is shut down to conserve power until it is accessed again. There are four categories of power management settings: Maximum Power Saving, Maximum Performance, Customized, and Disabled. The default setting for each feature is listed in Table 1-9.
(Defaults) cannot be modified * Idle Mode: Determines processor speed. For Auto, processor is throttled to 50% of maximum clock sped only during inactivity. When On, processor is always at 50% of maximum clock speed. When Off, processor is always at maximum clock speed. SleepSleep is a power conservation mode that performs the following functions:
The computer may be manually put in Sleep mode by pressing the Fn + F4 keys. HibernationHibernation is a power conservation mode that performs the following functions:
The Hibernation file is preinstalled on the hard disk. The Hibernation file is slightly larger than the total RAM memory of the computer (system memory, memory expansion board, and video memory). The Hibernation 100-MB file can be reinstalled with the QuickRestore CD. The system comes configured with a hibernation file large enough to support 96 MB of DRAM. Please refer to C:\HIBERNATE\HELP.TXT to customize the hibernation file size. Hibernation is initiated by one of the following means:
When the Power button is pushed, the computer exits Hibernation. Battery Operating TimeBattery operating time is affected by variables, such as the following:
Refer to Appendix B for information on increasing battery pack operating time, conditioning the battery pack, and disposing of a used battery pack. |
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