Assessments - 4, GPA: 4.8
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Checking Battery Power To check the remaining battery power, move your cursor over the power icon. The power icon is a “battery” when not using AC power and a “plug” when using AC power. Double click on the icon for more information and settings. Move your mouse over the battery Right-click the battery icon for sub- icon for remaining power information. menus. Left-click the battery icon for power management settings. When the AC power is connected, charging status will be shown. NOTE: If you ignore the low battery warning, eventually the Notebook PC enters suspend mode (Windows default uses STR). WARNING! Suspend-to-RAM (STR) does not last long when the battery power is depleted. Suspend-to-Disk (STD) is not the same as power OFF. STD requires a small amount of power and will fail if no power is available due to complete battery depletion or no power supply (e.g. removing both the power adapter and battery pack). WARNING! Never attempt to remove the battery pack while the power is ON, or if the system has not yet entered into the suspend mode as this may result in the data loss. Using the Notebook PC 4 Power Management Modes The Notebook PC has a number of automatic or adjustable power saving features that you can use to maximize battery life and lower Total Cost of Ownership (TCO). You can control some of these features through the Power menu in the BIOS Setup. ACPI power management settings are made through the operating system. The power management features are designed to save as much electricity as possible by putting components into a low power consumption mode as often as possible but also allow full operation on demand. These low power modes are referred to as “Stand by” (or Suspend-to-RAM) and “Hibernation” mode or Suspend-to-Disk (STD). The Standby mode is a simple function provided by the operating system. When the Notebook PC is in either one of the power saving modes, the status will be shown by the following: “Stand by”: Power LED Blinks and “Hibernation”: Power LED OFF. Full Power Mode & Maximum Performance The Notebook PC operates in Full Power mode when the power management function is disabled by configuring Windows power management and SpeedStep. When the Notebook PC is operating in Full Power Mode, the Power LED remains ON. If you are conscious of both system performance and power consumption, select “Maximum Performance” instead of disabling all power management features. ACPI Advanced Configuration and Power Management (ACPI) was developed by Intel, Microsoft, and Toshiba especially for Windows and later to control power management and Plug and Play features. ACPI is the new standard in power management for Notebook PCs. If installing Windows 98 using a BIOS dated 12/1/1999 or later, ACPI is automatically installed. NOTE: APM was used in older operating systems like Windows NT4 and Windows 98. Because newer operating systems like Windows 2000 and Windows ME utilize ACPI, APM is no longer fully supported on this Notebook PC. Suspend Mode In “Stand by” (STR) and “Hibernation” (STD), the CPU clock is stopped and most of the Notebook PC devices are put in their lowest active state. The suspend mode is the lowest power state of the Notebook PC. The Notebook PC enters suspend mode when the system remains idle for a specified amount of time or manually using the [Fn][F1] keys. The Power LED blinks when the Notebook PC is in STR mode. In STD mode, the Notebook PC will appear to be powered OFF. Recover from STR by pressing any keyboard button (except Fn). Recover from STD by using the power switch (just like powering ON the Notebook PC). 4 Using the Notebook PC Power Savings In addition to reducing the CPU clock, this mode puts devices including the LCD backlight in their lower active state. The Notebook PC enters “Stand by” mode (low priority) when the system remains idle for a specified amount of time. The timeout can be set through BIOS setup (lower priority) and Windows power management (higher priority). To resume system operation, press any key. Power State Summary STATE ENTRY EVENT EXIT EVENT “Stand by” • “Stand by” through Windows Start button, • Any device • Timer as set though “Power Management” • Battery low in Windows Control Panel (higher priority) STR (“Stand by”) • Ring indicator • Hotkey [Fn][F1] (Suspend-to-RAM) • Power button STD (“Hibernate”) • Power button • Hotkey [Fn][F1] (Suspend-to-Disk) • Battery Extremely Low Soft OFF • Power button (can be defined as STR or STD) • Power button • “Shut down” through Windows Start button Thermal Power Control There are three power control methods for controlling the Notebook PC’s thermal state. These power control cannot be configured by the user and should be known in case the Notebook PC should enter these states. The following temperatures represent the chassis temperature (not CPU). • The fan turns ON for active cooling when the temperature reaches the safe upper limit. • The CPU decreases speed for passive cooling when the tempera...
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