Power Management Features (2640)

Power Management Features

Three power management modes are provided by the computer to reduce power consumption and prolong battery power.

Standby Mode

When in standby mode the following occurs:

Events that cause entering of standby mode:

Events that cause the computer exit or resume standby mode:

Suspend Mode

When in suspend mode, the following, in addition to the four actions of standby mode, occur:

  1.  In the ThinkPad Features Program, the computer can be set to  'Will not suspend even if LCD is closed'..
  2.  When the computer is powered with ac power and is used  with one of the communication PC cards, the computer enters standby mode , the PC card and application program  remain active.
  3.  The computer cannot enter the suspend mode.
  4.  While a communication link is running.

Events that cause entering of suspend mode:

Events that cause exiting or resuming of suspend mode:

Hibernation Mode

When in hibernation mode, the following occurs:

NOTE: The computer cannot enter hibernation mode when:
the computer is powered with ac power and a communication PC card is used.

Events that cause entering of hibernation mode:

Event that causes the computer to exit hibernation mode.

When power is turned on, the hibernation history of the boot record on the hard disk is recognized and system status is restored from the hard disk to resume operation.

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