I'm sure, that's because people are doing things they shouldn't, without knowing what specific Bios settings do or applying way too much voltage to their chip. That and they're probably a lot of young kids making mistakes, right along with some of us adults. Trust me, I'm not too keen on upping my Vcore voltage unless I absolutely have to in order to create a stable overclock.
What's bugging me is that my results are no where near what seems to be the common results people are getting with this chip *6600K*, in regard to voltage and clock speeds. I must have read at least 20 articles or forum posts where people are getting to 4.4GHz easy, and with a very modest voltage increase (1.25v-1.28v). I haven't been able to get 4.3GHz stable with 1.28v or even 1.30v!
From what I've gathered my mobo (MSI Z1780A Gaming M5) isn't all that great for overclocking, even though it is marketed as a "Gaming/Overclocking" motherboard. For starters it doesn't have LLC in the Bios and MSI tech support told me that it will never be added. Why? Because it has to be done on the hardware side of the motherboard, meaning that the circuitry itself is the limiting factor, not code that can be added to the Bios. When I heard this news I was surprised and disappointed. I sincerely thought that LLC could be added via a Bios update. I'm still not sure I believe MSI. Even budget boards usually have LLC (Load Line Calibration).
So why didn't MSI add LLC to a board they claim was designed for overclocking?
A. Because the new Skylake chips make overclocking easier and voltages aren't as important with Skylake or B. The want people to buy the more expensive M7 motherboard just to have LLC
To be honest, neither of those reasons make much sense to me. MSI doesn't even mention LLC in their advertisements for either board. It's something the end user would find out about after buying the board, much to his or her dismay, at least if they planned to overclock and were unfortunate enough to by the M5. As for the other reason why MSI didn't include LLC on the M5, that doesn't make sense either since a lot of the controls that were traditionally left to the processor have now been switched to the motherboard (meaning they are adjusted through the motherboard whereas before they were adjusted by the processor itself).
Every review I read about this board before I actually bought it made the MSI M5 out to be a really solid board for overclocking, every damn review. Those reviews led me to buying this board, specifically because of the overclocking ability of the board. So I buy it, install it and begin to overclock and can't get anywhere near the speeds and voltages people got in those reviews and in their YouTube videos.
I checked out the settings in the Bios that MSI used for their "Game Boost" software overclock. The voltages for the MSI Game Boost of 4.1GHZ were 1.41v!!!
Sounds really high to me, especially for only 4.1GHz. Compare that to the numbers floating around everywhere else and you'll quickly realize that something must be wrong, somewhere, whether it's the processor itself or the board. Personally, I think the board is the limiting factor but I won't know until I try another motherboard or through an identical processor on this board and see how it overclocks.
The final possibility is a setting in the Bios that is somehow limiting my overclock and causing me to apply more voltage then what one would consider normal. I'm going to keep trying and see if I can somehow reach 4.4GHZ without going past 1.35v, that at least, should be possible.