It seems your chip is as bad as mine. My 4670k on the Gryphon Z87 mATX can do 4.536Ghz at 1.375v with my Corsair Vengeance (4x4GB) 1600Mhz OC'ed to 2150Mhz at 10-11-11-32 1T and 1.7v.
Uncore is at 4.22Ghz and if you're wondering why 4.536 and 2150... it's because I cranked the BCLK a tiny bit to 100.8 to go from 4.5 to 4.536Ghz on the CPU, 2133 to 2150 on RAM and 4.2 to 4.22 on the Uncore.
It's a bit of a misconception that "anything over 1.3v on Haswell will FRY IT!!!" It's not true, I've been using mine at those voltages for more than a year now and it's still going strong. Though I can't vouch for your own sample, I can tell you that even 1.35v is relatively safe if you don't do anything that utilizes the AVX instruction set. I assume you're a content creator since you have 24 gigs of RAM, so if you are, check the programs you use and how much wattage is drawn through the CPU, AVX programs usually draw crazy amounts of power, it's why I don't use Prime95 to test for stability anymore, it uses upwards of around 120 watts on my CPU, that's insane. I always keep HWInfo and Rivatuner on when I game and the highest I ever saw the CPU power go is around 70-75 watts when it's loaded at 100% (Mind you the CPU's TDP is 84 watts, so even with this extreme voltage, I'm still under the TDP rating). So Prime95 is completely unnecessary and stresses the CPU with an unrealistic load. You're using AIDA64 which is what I also use, that's good. I might add Memtest86 if you wanna test your RAM and that's it.
I need to add that I delidded my CPU and used liquid metal between the silicon and the IHS, so temps are not a problem, 65c max, usually around 50-55c. Believe it or not, that's achieved with a 30 bucks Hyper 212X.
I attached a voltage limits table for Haswell, made by someone who posted an OC guide on this website (sorry I forgot who it was, and tried to look for the post but couldn't find it).
Though I wouldn't recommend using those limits as is, a minor step back from say 1.45 to 1.35 or even 1.4 will probably be okay if your temps are under control.
PS: Sorry about my stupid and cringy username, I created this account a while back.
Last edited by MrFart; 10-19-2019 at 06:25 AM.