CREATIVE 4X CD-ROM Drives GCD-R542B - Manual (Page 61)

Resolving Hardware Conflicts B-5
To change the IRQ line, enable the jumpers corresponding to the
settings shown in Figure B-2 .
To ensure that your changes to the IDE CD-ROM interface
settings are effected, make corresponding changes to the
hardware device driver settings. Refer to the section
“Changing the Driver Settings” in Chapter 4 for more
information.
Figure B-2: The available IRQ settings of your IDE CD-ROM Interface.