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Systems attached to ThinkPad Advanced Mini Dock or ThinkPad Advanced Dock may experience lock-ups or application hangs after losing AC Power - ThinkPad R60, R61, R61i, T60, T60p, T61, T61p, T400, T500, W500
Symptom
System that is attached to the ThinkPad Advanced Dock or ThinkPad Advanced Mini-Dock may hang or lock up if you lose AC power from the dock.

Affected configurations

Any of the following Lenovo systems attached to the ThinkPad Advanced Mini Dock (models 2504-10x) or ThinkPad Advanced Dock (models 2503-10x):

  • ThinkPad R60
  • ThinkPad R61, R61i
  • ThinkPad T60, T60p
  • ThinkPad T61, T61p
  • ThinkPad T400, T500
  • ThinkPad W500
Solution

The ThinkPad Advanced Mini Dock or ThinkPad Advanced Dock needs continuous AC power to function. Legacy components (including serial or parallel peripheral devices in the dock) may cause unreliable operating system behavior if those devices lose power.

To ensure proper behavior by the ThinkPad Advanced Dock or ThinkPad Advanced Mini-dock, Lenovo recommends keeping a continuous supply of AC power attached to the back of the ThinkPad Advanced Dock and ThinkPad Advanced Mini-Dock.

Note: A new feature is added to newer versions of the system BIOS that will allow you to disable legacy devices. (Config>>Docking Station>>Legacy Devices on Mini-Dock>>Disabled)

This setting will prevent the ThinkPad from hanging when you lose AC power, but it will disable serial/parallel devices that are connected to the dock.



If you are unable to find what you are looking for, please do try the following options:
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Country Availability
AvailableWorldwide
Document ID : HT005225
Legacy Document ID : MIGR-69370
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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