Bad Bios? or The Worst CPU of them all?

Hello, a few days ago i decided to do a clean windows install and i say oh lets update bios too from F5 to F21 (Latest Stable Version)

My Rig:
i7 6700K + Kraken X62
Gigabyte Z170X Gaming 3
16gb DDR4 Avexir Blitz Red Led 3200mhz
1070 Gaming X

I have used the 6700k at 4.5ghz with temps below 70 even with AIDA64 Extreme using the BIOS option of auto overclocking while using the XMP profile to get the ram to 3200mhz

After the bios update it was IMPOSSIBLE to even get 4.4ghz at 1.35v, i tried F22h the latest beta bios and the same.. then i downgraded to F20, the lowest i can go because past F20 it prohibits to go lower because of the 7th gen..

With F20 im able to get back to my usual 4.5ghz but only if i set it to 1.36v but it gets to almost 85c, and aiming for 4.6ghz its Impossible even with +1.4v...

WTF is going on? any ideas?
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