Now that is very weird.. What are you using to monitor temps... 1.550V is the core max before the CPU becomes unstable.. if it is hitting 1.6 then you have a problem... 1.4 is normal... as default is anywhere between 1.2 and 1.4 no more than 1.4 but like if ur OC the best to stay is behind 1.550... like my V for my OC is 1.548V talk about a close call rightXD