Installing Fedora Core 6 on a ThinkPad 600X
Boot the FC6 boot CD and select your preferences. I like to turn off the Office & Productivity software and install everything from the Internet, since nearly every package has had important updates by this time.
You can follow the instructions at the Fedora Wiki to install the correct (i686) kernel because the official FC6 discs may install the i586 kernel on this machine.
The sound chip will not work with the final configuration, but that will be fixed later.
The next step is to update what came on the installation media. The easiest way to do that is via a network connection, but that's not as simple as it should be... The CardBus slots won't be working at this point. To fix this, edit the /boot/grub/grub.conf file. On any lines that start with "kernel", add "acpi=noirq" at the end.
Get the correct kernel installed using the instructions above, if needed. Run yum update to get all the latest packages. Reboot. Run Soundcard Detection and sound should now work. You may have to turn up your volume settings to hear anything.