IBM ThinkPad X40 Series Service And Troubleshooting Manual page 45

Solution:
Check whether any option has been selected that would disable your
computer from entering standby or hibernation mode.
Problem:
The computer does not enter standby mode as set by the timer under
Windows NT.
Solution:
For Windows NT:
If you have enabled the CD-ROM AutoRun feature, the computer does not
enter standby mode through the timer. To enable the timer , edit the
configuration information in the registry as follows:
HKEY_LOCAL_MACHINE\SYSTEM\
CurrentControlSet\Services\Cdrom\
Autorun: 0x1 > Autorun: 0
Note: Before you make any changes, back up the computer registry and
configuration. If something goes wrong, you can restore the system
registry and configuration files.
Problem:
The Fn+F12 key combination does not cause the computer to enter
hibernation mode.
Solution:
The computer cannot enter hibernation mode:
v If you are using one of the IBM communication PC Cards. To enter
hibernation mode, stop the communication program, and then remove
the PC Card or disable the PC Card slot. Click the Safely Remove
Hardware icon in the taskbar (for Windows XP) or the Unplug or Eject
Hardware icon in the taskbar (for Windows 2000).
v If the hibernation utility is not installed in Windows NT. To install the
hibernation utility, refer to "Installing device drivers" in the Access IBM,
your on-board help system.
v If the hibernation mode is not enabled. To enable it, do as follows:
For Windows NT:
Note: You must format your hard disk with the FAT format system to use
hibernation mode in Windows NT. If you format your hard disk
with NTFS, the default format in Windows NT, you cannot use
hibernation mode.
1. Start the ThinkPad Configuration Program.
2. Click Power Management.
3. Click Suspend/Resume Options.
4. Click Enable Hibernation.
Solving computer problems
Chapter 2. Solving computer problems
23