Looks like thses newer celeron are great at OC or I just got a good one. Been runing at 1.2 now for past two days with stock volts with no problems. The stock fan/heat sink is doing a great job, temp shows 91 cpu and 84 MB. Im also runing in on a ASUS CLUS-2 mobo with 257 k's of PC 133 men. Got love free speed.