IBM ThinkPad T23 2647 Supplementary Manual page 34

Solving computer problems
To avoid or reduce this problem, you can choose any of four different modes
of operation other than Maximum Battery, as follows:
v Maximum Performance: Keeps the processor speed high at all times.
v Automatic: Switches the processor speed between high and low, depending
on how much the processor is used. If the use increases, Intel SpeedStep
switches the processor speed to high.
v Battery Optimized Performance: Keeps the processor speed low at all
times.
v Maximum Battery: Switches the processor speed between the regular low
speed and half of that speed, depending on how much the processor is
used. If the use increases, Intel SpeedStep switches the processor speed to
the lower speed.
To choose a mode, do the following:
1. Start the ThinkPad Configuration Program.
2. Click Power Management.
3. Click the Intel SpeedStep technology tab.
4. From the list, select the mode you want.
5. Click OK.
Problem: If you have been using Windows 2000 with the ThinkPad Dock
attached to your computer, and you then detach the ThinkPad Dock while in
standby mode, the system may not respond at all.
Solution: Reboot the system. To avoid recurrence of this problem, be sure to
detach the ThinkPad Dock only when the system is operating or turned off,
not when it is in standby mode.
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ThinkPad T23 Service and Troubleshooting Guide