Using a docking station
To enable an IDE device in the docking station, you must change
the default setting to either of the following:
3-channel IDE mode. In this mode, you can still use the hot
and warm swap functions for a device in the UltraslimBay. An
additional IRQ for the third IDE channel is required.
2-channel IDE mode. In this mode, you do not have to assign
an extra IRQ. However, you cannot use hot and warm swap
functions for a device in the UltraslimBay.
Setting to 3-Channel IDE mode
1
Open the ThinkPad Configuration program.
2
Click the Docking Station (
) button.
The “Docking station” window appears.
3
Click Device Manager....
The “System Properties” window appears.
4
Click Computer; then click Properties.
5
Determine an available IRQ value other than IRQ 11 or
15 (IRQ 9 is recommended) by checking the current
setting under the View Resources tab. If there is no
available IRQ value, you can make space for it by
removing a device that is not being used. To do this,
select the Device Manager tab; click the device you are
removing; and then click the Remove button.
6
Click OK to close the “System Properties” window.
7
Return to the “Docking station” window; then click on
the IRQ Holder for PCI Steering tab.
8
Change the IRQ value in 1st IRQ to the available value
you determined in step 5.
If you change the IDE channel configuration, the drive
letter assignment might be changed.
Chapter 2. Extending the features of your computer
85
