The only thing I would worry about is changing the "CPU driver". Before you shut down for the last time, right click on my computer, select properties, hardware, device manager. Expand the computer field, and update the driver from ACPI multiprocessor PC to uniprocessor PC. I'm not sure if it would get changed automatically or not, so you might as well do it yourself. (this is what needs to get changed when you upgrade from single to multicore. If you've ever done that and saw only one graph in task manager, thats why.) I never owned a multicore AMD CPU, if it has an uninstall function then use it?