I've had the same problem with the same hardware, see bug #57408 in RedHat's bug database for the solution. You basically need to install the SMP kernel.
PS: I also had a somewhat similar problem with RedHat 7.1, but that one wouldn't install at all. The solution was to create custom boot disks and use
linux noapic
at install time, then also make sure that the custom kernel from the boot disks got installed (since the stock one didn't know about noapic). I guess that since then they've enabled the proper workaround for this chipset in the installation kernel.
