i did a 8 hour prime last nite @ 2.6 and was 100% stable....at 2.7 i couldnt even get it thru super pi at 1m.....i might try decreasing the multiplier to x8 then do some benchmarks. At 2.6ghz my vcore is already 1.52. Over 1.6 i think would be pushing it even though i would probably need it for a higher clock...