Lenovo ThinkPad 770Z TP 770X On-line User's Guide that came preloaded on the s - Page 51

Considerations When Using a Power Management Mode When you use a power management mode, you need to consider a few points, especially if you are using the network. Considerations for Suspend Mode Consider the following before using suspend mode: The computer can enter suspend mode when used with the following operating systems: - DOS Version 7.0 - OS/2 Warp Version 4 - Microsoft Windows Version 3.11 with DOS Version 7.0 - Microsoft Windows 95 - Microsoft Windows 98 - Microsoft Windows NT Version 4.0 Important If you use Windows 3.1, ensure that Advanced Power Management (APM) is installed according to the instructions in Notes for Reinstalling or Installing the Operating System. Before playing audio, it is better to turn off any automatic timers that put the computer into suspend or hibernation mode. In addition, it is better to stop playing audio before entering suspend or hibernation mode. If the computer enters suspend or hibernation mode, data from a running audio program might be lost. Attached devices, such as a printer or serial device, stop running when the computer enters suspend mode. When you resume normal operation, the output might differ from what you expect, because the device might be reset or lose its configuration settings. Sometimes you might want to use the computer with the LCD closed-for example, when an external monitor and keyboard are used. In such a case, turn on the computer with the LCD closed, or use the ThinkPad Configuration program to set the computer not to enter suspend mode when the LCD is closed. If the computer resumes normal operation by reaching the ThinkPad Configuration timer setting or because of an incoming Chapter 4. Using Your Computer with a Battery Pack 43