I tried lover undevolting (higher voltage),and in next few months problems tend to occur less, but still appeared after some time. So i looked at titan's setting - they we're strange, to say at lwast. Check for yourself - how voltage rise with higher frequency - many times it seems unbalanced. I did my own profile, completely from scratch, based on standard Nokia settings + ideal titan's setting (Something between stock settings and "ideal" settings, to get voltage on 500 mhz and voltage on 900 mhz - ie. min and max voltage for me. then, voltage progress between min and max was adjusted by me, cause titan's setting were trash in my opinion).