trying to run old Red Hat version in KVM, failed.

Some days ago I felt some nostalgic feelings and I tried to install a red hat 6.2 version into a fedora 14 host.

The installation was painfully slow, but it was completed successfully anyway. The problem is that after booting the new (not really) redhat 6..2, I got a kernel panic with the following message:

Kernel panic: Kernel compiled for Pentium+, requires TSC”

after googling that, I found that one of the solutions would be recompile the old linux kernel with the option “Unsynced TSC support”, I’m to lazy to do that just for fun, I would do it if I have no choice, but I have some doubts, why the kernel in the installation cd is not failing? and, is it because my computer has an AMD processor?