Everyone's system is different so by no means do I think this is a cure for everyone, but hopefully it can help at least someone. 

Long story short, on my system v5 doesn't like Intel's/Window's power saving features. I have an older system (6600k - 980ti) and I've had the same stable overclock for years. My overclock has never given me issues with any games and I'll run Cinebench/OCCT/etc. from time to time to verify everything is still stable. And then came v5. With v5 I was getting fairly frequent freezes to where I couldn't do anything and would have to restart. Assuming CTD was usually software based but these freezes seemed hardware based. I ran the usual gamut of tests and everything was still stable so I started messing around with C-states and such. I made sure Windows was set to "high performance" power mode and disabled all power saving features in the BIOS (all c-states, C1E and EIST). This completely resolved my issue with v5 freezing. I know some people prefer to disable all of these features on any overclocked system but I've always liked having them on as long as I know I have a stable overclock. Guess I'll be leaving them off for the time being and maybe give it another whirl when the as additional v5 hotfix/updates roll out.

I figured it was worth sharing my experience in hopes that it can help someone else. 

Cheers!

Thank you for taking the time to provide us with your insight.