Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
i would reset the bios to defaults in case any settings in place stop the PC booting when the Xeon is in as it will save you the hassle of swapping back over or doing a clear cmos route