Lenovo ThinkPad 770E-ED TP 770X User's Reference that shipped with the system - Page 101

Setting to 3-Channel IDE Mode, IRQ Holder for PCI Steering

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Using a Docking Station If you change the IDE channel configuration, the drive letter assignment might be changed. Setting to 3-Channel IDE Mode 1 Open the ThinkPad Configuration program. 2 Click on the Docking Station ( ) button. The "Docking station" window appears. 3 Click on the Device Manager... button. The "System Properties" window appears. 4 Click on Computer; then click on the Properties button. 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, remove a device that is not currently being used by clicking on the device and the Remove button under the Device Manager tab. 6 Click on 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. 9 Click on the IDE Device tab. 10 Select Enable in the UltraBay II IDE device in the docking station list box. 11 Select Third in the IDE Channel list box. 12 Click on OK to close the "Docking station" window. Chapter 2. Extending the Features of Your Computer 87

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Using a Docking Station
Setting to 3-Channel IDE Mode
1
Open the
ThinkPad Configuration
program.
2
Click on the
Docking Station
(
) button.
The “Docking station” window appears.
3
Click on the
Device Manager...
button.
The “System Properties” window appears.
4
Click on
Computer
; then click on the
Properties
button.
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, remove a device that is not currently
being used by clicking on the device and the
Remove
button under the
Device Manager
tab.
6
Click on
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.
9
Click on the
IDE Device
tab.
10
Select
Enable
in the
UltraBay II IDE device in the
docking station
list box.
11
Select
Third
in the
IDE Channel
list box.
12
Click on
OK
to close the “Docking station” window.
If you change the IDE channel configuration, the drive letter
assignment might be changed.
Chapter 2.
Extending the Features of Your Computer
87