you are almost home free
first of all, LGA cpu have no pins, but the socket on the motherboard does, and are apparently prone to bending and breaking on multiple installs, if one is not careful in removing chip straight up or down.
secondly, you must set manually in bios the multiplier and FSB for your chip 14 X 200 (2.8) since its dif from AMD, AFTER setting failsafe defaults while you are at it. (F10 save changes - Yes)
your prob is that your HDD O/S install has chipset/IDE drivers for AMD on it.
you cant run a chevy with a toyota motor
you must set boot order in bios to CDROM first, load XP PRO CD., boot to it, it will see an O/S already installed and ask if you want to repair. The first "R" choice is recovery console, which you dont want, and say "NO" to repair using the console and then to repair instead of install on the next screen, two different types of repair. The "repair over install" will check all your devices and load working generic drivers for your new mobo. You will lose no apps or data - I have done it many times. Do not allow any formatting or FAT32 or NTFS changes.