I wouldn't recommend it ... the stock cooler that came with my Palomino XP2000+ was woefully underpowered for that chip (operating temps in the mid-60s under idle conditions). The stock cooler that comes with the Barton XP2500+ is far more substantial, and one is currently sitting on that old Palomino 2000+ .... with idle temps now in the low 40s. So I don't think an old HSF would be such a good idea on the new Bartons!