Lenovo ThinkPad 770 ThinkPad 770 Supplement to the User Guide - Page 14

Title: C79DKMST CreationDate: 08/19/97 17:47:41 Setting to 2-Channel IDE Mode 1 Open the ThinkPad Configuration program. 2 Click on the Docking Station ( ) button. 3 Change the IRQ value in IRQ Holder for PCI Steering to a value other than IRQ 11. 4 Select Enable IDE devices. The third IDE is automatically selected. 5 Select Secondary channel in the IDE channel selection list box. 6 Click on Disable Device in the warning message dialog box. 7 Click on OK to close the dialog box. 8 Select OK in the warning dialog box. The system restarts. If necessary, change the IRQ value assigned to PCI to 11. The following table shows the relationship between the devices and IRQ values: Device HDD UltraBay II Docking station 2-Channel IDE Default Mode IRQ 14, P-M IRQ 15, S-M Disabled 3-Channel IDE Mode IRQ 14, P-M IRQ 15, S-M IRQ 11, T-M and T-S 2-Channel IDE Mode IRQ 14, P-M IRQ 14, P-S IRQ 15, S-M and S-S Legend: 1. P-M: Primary-master 2. P-S: Primary-slave 3. S-M: Secondary-master 4. S-S: Secondary-slave 5. T-M: Third-master 6. T-S: Third-slave 8