I'm just wondering what I should set my Vcore at for my 2.6c (oc'ed to 3.1mhz) before it would start lowering my cpu's life considerably? Its currently set at 1.600
1.725 with good air cooling (read thermalright or zalman 7000 series). 1.75 with watercooling. 1.8+ with phase change. If its a MO stepping, don;t be afraid to give it 1.75 or 1.8v on air. Thats because it is really a Gallatin core.