Standby mode
When in standby mode, the following occurs:
v The LCD backlight turns off.
v The hard disk motor either spins down or stops
(controlled by OS).
v Suspend LED turns on.
Events that cause the computer to enter standby mode:
Note: These events depend on the Power button, Sleep
button and Lid settings (options set to standby
mode) in the ″Advanced″ page of the ″Power
Management Properties″ screen.
v Standby requested by the Sleep button (Fn+F4)
v Standby requested by the power button
v Standby requested by closing the lid.
Events that cause the computer to exit standby mode:
v RTC alarm
v Power-on switch is operated
v Fn key is pressed
v The LCD is opened (if the system entered standby
mode from closing the lid).
Note: ThisistrueifWhen I close the lid of my
portable computer: is set to Standby in the
″Advanced″ page of the ″Power Management
Properties″ screen.
v An embedded modem signals the modem ring indicator
v The battery power is at a critical level.
Display off mode
When in display off mode, the following occur:
v The LCD backlight turns off.
Events that cause the computer to enter display off mode:
v Hotkey : Fn+F3
Events that cause the computer to exit display off mode:
v Anykey or mouse operation
Hibernation mode
When in hibernation mode, the following occurs:
v The system status, RAM, VRAM, and setup data are
stored on the hard disk.
v The system is powered off.
Events that cause the computer to enter hibernation mode:
28 ThinkPad R30/R31 HMM
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