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Power Management Features
Three power management modes are available in the com-
puter system to reduce power consumption and to prolong
battery life.
Standby Mode: In standby mode, the following
occurs:
The LCD backlight turns off.
The audio amplifier turns off. (Fn+F3)
Events that cause the computer to enter standby mode:
Standby mode requested by the Fn key (Fn+F3).
The computer exits standby and resumes operation when
any key is pressed.
Suspend Mode: In suspend mode, the following
occurs:
The LCD is powered off.
The hard disk drive is powered off.
The CPU stops.
Events that cause the computer to enter suspend mode:
Suspend mode requested by the Fn key (Fn+F4).
The Lid is closed (BIOS Setup).
The specified time has elapsed.
Battery low occurs and hibernation conditions are
insufficient.
Note: When battery is low, the battery status indi-
cator blinks orange.
The computer is ejected from the ThinkPad Port
Replicator with Advanced Etherjet Feature (BIOS
Setup).
The UltraBay FX (Combobay) switch is pressed.
Notes:
1. In the IBM BIOS Setup Utility, the computer can be
set to suspend when lid is closed.
2. In the IBM BIOS Setup Utility, the computer can be
set to suspend when docked.
The following events cause the computer to resume opera-
tion from suspend mode:
The Lid is opened.
The real time clock alarm is signaled.
The ring indicator (RI) is signaled by the internal
modem or a PC Card device.
The Fn key is pressed.
Wake on LAN occurs.
Power switch is pressed.
ThinkPad 390X / i 1700 HMM
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