IBM ThinkPad 760C, Service Manual

Page: 124 / 327

Using Power Management
Considerations for Hibernation Mode
Consider the following before using hibernation mode:
Do not run any tasks while the hibernation file is being created.
Create the hibernation file only on the hard disk drive installed in
the computer. The hibernation file is hidden and cannot be
accessed.
The computer uses battery power to enter hibernation mode.
Therefore, it reserves some battery power when it is set to enter
hibernation mode when a low-battery condition occurs. This can
cause the battery operating time to be shorter than the time
shown on page 25.
Note:
If the communication links are still
not reestablished, remove and then
reinstall the PC Card before
restarting the system or application
program.
When the computer is powered with battery power, the computer
turns power off to the PC Card when entering hibernation mode.
When resuming normal operation, if the PC Card or computer
does not operate, restart the application or computer.
When the computer is powered with ac power and is using one
of the following IBM PC Cards, it does not enter hibernation
mode:
– IBM PCMCIA Data/FAX Modem
– IBM High Speed PCMCIA Data/FAX Modem
– IBM 3270 Emulation Credit Card Adapter
– IBM Token-Ring 16/4 Credit Card Adapter
– IBM Credit Card Adapter for Ethernet
– IBM 5250 Emulation Credit Card Adapter
– IBM Microelectronics 2.4/9.6 Data/FAX Modem
– IBM Microelectronics 14.4/14.4 Data/FAX Modem
– IBM Wireless Modem for ARDIS
– IBM Wireless Modem for Mobitex
– IBM Wireless Modem for Cellular/CDPD
This prevents possible problems from occurring with
communication application programs after the computer returns
to normal operation.
Chapter 4. Using Battery Power
107