Question CPU Core Voltage way too HIGH & Overclocking Instability (i7 6700K & Z170A)

Feb 8, 2021
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My CPU corevoltage is always way too high. And even when I set it manually onto generous amounts it is unstable with overclocking speeds that should be totally fine.

With CPU Voltage on AUTO:
- corevoltage goes over 1.46V without overclocking when just opening browsers sometimes --> Fans go to 100% load (because the CPU produces too much heat)

With CPU Voltage on Manual:
  • corevoltage set to 1.38V causes instability on 4.5Ghz OC: e.g. bluescreens (Others run 4.8GHz stable at 1.36V)
  • corevoltage set to 1.38V causes instability even on 4.4Ghz OC: e.g. screen freezes and I need to hard restart

My setup:
  • Z170A Asus motherboard (BIOS Version 3802 (newest Version))
  • Intel i7 6700K (4GHz base, 4.2GHz boost)
  • 16GB DDR4 RAM (2400MHz) Crucial Ballistix (Dimm slot A2 & B2)
  • GTX 1070 Zotac
  • Samsung 970 Evo M.2 SSD (1TB)
  • 2x 140mm & 2x 120mm case fans
I do not understand what the issue is and I read that people were having similar issues with the same motherboard and CPU but I never found out how to solve it...

Please help D: let me know what the Issue could be..


PS:
4.4GHz OC with voltage set on AUTO when opening a 2nd browser?!?!? WTH how does it go to 1.456V????:
 

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