Lenovo ThinkPad 365E-ED ThinkPad 365, SelectaDock I - Hardware Maintenance Man - Page 52

Events that cause entering of hibernation mode: The hibernation mode is requested by the Fn key (Fn+F12). Timer conditions are satisfied in suspend mode. Critical low battery condition. The system first goes into safe suspend mode, then when the battery reaches critical the system goes into the hibernation mode. Event that causes exiting of hibernation mode. The power-on switch is operated. 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. Doze Mode: In the Doze mode, the system slows down the central processing unit and the system uses less power. Enable the doze mode in the setup program. Exiting the doze mode is instantaneous by pressing any keyboard key. Safe Suspend: Saves the computer state, then enters the suspend mode. Port Replicator Power Overload: If power shut downs occur intermittently when using a port replicator, suspect an over-current problem. Some devices use more power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shut down. Isolate this problem by removing one of the devices, and use the computer under the same condition to see whether a power shut down occurs. Do this procedure for all devices, then determine the cause. Setup Utility Note The Setup Utility is ROM-resident and can only be started at a full-screen DOS prompt. Do the following to run the Setup Utility. 1. Go to a DOS full screen. 2. Press Ctrl+Alt+F11. 3. Follow the instructions on the screen. Note When exiting the Setup Utility using Fn+6, press Ctrl+Alt together after returning to the full-screen DOS. This ensure the keyboard controller is in the proper reset state. 40 IBM Mobile Systems - ThinkPad HMM Volume 3