Lenovo ThinkPad 760CD ThinkPad 380, 385, 560, 560E, all 760, 765 and SelectADo - Page 234

The following event causes the computer to exit hibernation mode: The power-on switch is turned on. When power is turned on, the hibernation history in the boot record on the hard disk is recognized and system status is restored from the hard disk to resume operation. Port Replicator Power Overload: If power shutdowns occur intermittently when using PCMCIA-2 devices via a port replicator, suspect a current overload. Some PCMCIA devices use much power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition to see whether a power shutdown occurs. Do this procedure for all devices; then determine the cause. 222 IBM Mobile Systems HMM