I am running a Venice 3000+ with a XP-90 OC'd to 2250 as well, stock voltage, 24 hours of Prime95 and core temps=case temps. Your temps seem a little high can you hit the same OC with less voltage? As far as I remember AMD chips can handle about 60C well and then run into problems with 60C+ I am sure someone will correct me if needed. As long as the heat is not causing problems and the thing is stable you should be fine.