Remember this is an ES sample of the wolfdale chip, who knows how the retail versions will clock, and at what Vcore might be needed...... I think the only ES chip that OCed pretty well while in the retail form are the G0 Q6600's. I think we are pretty used to seeing ES chips OC like crazy will fairly low voltage, but maybe this is a ES, that might be more like a retail??? 1.488V for 3.7GHz still is pretty damn good, concidering this chip starts life @ 2.33GHz