Ok no worries, but you did say stressing and benching for 30 days+.
but doesn't matter, what I wanted to say is still the same. High voltage but moderate load is better than those guys stressing 100% for days. People said it all the time, I did 8 hrs but then error at 12hrs so now I do 24hrs / 48hrs. I'm not afraid of high voltage but everytime I run linx/ibt/prime95 I feel pain for my CPU.
BTW, 1.49v unstabled for 4.7Ghz sounds about right for your chip. You probably need 1.4x vcore for 4.6Ghz and way over 1.5v for 4.7Ghz judging by the voltage you run for 4.5Ghz.
I run 4.7Ghz at about the same voltage as your 4.5Ghz and look how much vcore I need it to bump up 300Mhz. At 4.8Ghz I'm near 1.45v already. It's like what Prophet in Crysis 3 said "Victory cost a bit more everytime
Anyways, these people overreacted. Just because I ran 1.6v for 5Ghz doesn't mean I run it everyday It was just to see the limit, I run 4.7Ghz for daily uses, duh! Besides $350 for 3770k, 365 days a year 95c a day if the chip died in a year, com'on! They acted like I'm beating a 5 years old with a baseball bat or something.