@ henydiah wow your voltages to get 4.2 are definitely too high for daily usage, 1.5 is really the upper limit for 24/7, I have had 4.6Ghz at 1.65v before to windows, but it crashes on any bench, run it stably at 4.2 with 1.525v, but power draw is excessive for the performance..
The best OC for power drawn (efficiancy) is 3.85GHZ @1.32v that is less volts than stock and the performance rocks, the diff between 3.8 and 4 is not worth jumping to 1.45v imo
Ive yet to come across a 1055t that cannot make 4GHZ on 1.45v! And Ive personally built 20+ machines with them, they are my fav CPU!