IBM ThinkPad A21m, Руководство по техническому обслуживанию аппаратной части

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If the battery indicator blinks orange, indicating that the
battery power is low. (Alternatively, if Hibernate when
battery becomes low has been selected in the “Power
Management Properties” window, the computer goes
into hibernation mode.)
Note for the APM operating system:
Even if you do not set the low-battery alarm, the charge
indicator notifies you when the battery is low, and then the
computer enters the power-saving mode automatically.
This default low-battery behavior is independent of the
operating system; so if you have set the low-battery alarm,
the computer may not do what you specified. It chooses
either your setting or the default setting, whichever is
appropriate.
If you are using the ACPI operating system, only the
low-battery alarm is available.
To cause the computer to return from standby mode and
resume operation, do one of the following:
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Press the Fn key.
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Open the LCD cover (only if you are using Windows Me
and you entered standby mode by closing the LCD
cover.)
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Turn on the power switch.
Also, the computer automatically returns from standby
mode and resumes operation in either of the following
events:
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The ring indicator (RI) is signaled by a serial device or a
PC Card device (Windows 2000 does not support the
ring indicator (RI) resume by PC Card device.)
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The time set on the resume timer elapses. In Windows
98, the Scheduled Tasks setting takes priority over the
Resume on timer selection in the “Power Management
Properties” window.
Note: The computer does not accept any input
immediately after it enters standby mode. Wait a
few seconds before taking any action to reenter
operation mode.
Hibernation mode
Note for Windows NT
If you are using Windows NT in the default format,
NTFS, you cannot create a hibernation file. If you
want to use hibernation mode, you will need to
reinstall Windows NT with FAT format.
Related service information
General descriptions
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