Unfortunately, such situations are well known, but nobody seems to know a method for deducing what the problem is and I don't think anyone knows how to unfreeze the machine and proceed with the install. What is done is to re-install and use trial and error. (I don't know whether the reboot got far enough to write anything to the files in /var/log.) You can try various BIOS settings (e.g. enable or disable usb support. And you can add boot options to the kernel such as acpi=off and turning off various services. I don't recall if there is a convenient way to add these options when the install is getting ready to reboot your computer (by that time my mind has glazed over and I am not reading the directions). But since you got to post install configuration, try using the first cd to boot in the rescue mode. Then you might try using the
/sbin/chkconfig --del <service name>
to turn off networking and network sound. To get a list of service names use:
/sbin/chkconfig --list | less
Some kernel options you can add to the lines of /boot/grub/grub.conf are given by:
Get rid of the "rhgb" option so you will get a more informative boot up display.