I am on 2406 now no problems, also I read what was said earlier about EIST (speedstep) and C1E and decided to disable speedstep in the bios, the result was my voltage still drops when idle alongside the temp but I dont lose cpu clock speed so now I am sitting here wondering if speedstep (and coolnquiet) is just an overhyped feature since its C1E doing the power/heat saving. The only conclusion I can come to is just that by lowering the clock when idle reduces the chance of there been a stability issue when undervolted as the cpu itself is throttled but as soon as the cpu comes under load the voltage is upped so I reckon its a very low risk.