Well i wudnt suggest you to do that, 2.8A is a northworrd core iirc and it dosent heat up as the later prescott cores, HT makes only slight difference, nothing exceptional so dont waste ur money on it, if u are in an urge to upgrade, go for a complete upgrade with new board and proccy, if not then just get a decent motherboard and try and oc that 2.8 of yours