80 °C too high? I5-6600k 4.5ghz, H100i V2

nkm1998

Prominent
Nov 29, 2017
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CPU: I5-6600k
Motherboard: Asus Pro Gaming Z170
CPU Voltage: 1.31
CPU Bus Speed/Multiplier: 100*45
Clock Speed:4,5Ghz
Cooling: Corsair H100i V2

I did the 15min stress test with 1.3v with prime95 and max temp was 80°C, then i tried to lower my voltages to 1.29V, but one core failed after 5mins. So i increased my voltage to 1.31 just to be sure and now i have 81°C max temp. BUT if I do stresstest using AIDA64, my max temp is like 60-65.

EDIT: After 20mins of Prime95 stress test with 1.31V One core failed again..

I don't think that 81°C is too much because in prime95 (I don't know how to explain) it will only go to 80°C, But in normal use i don't think temps will be that high.
Yesterday i played some games and my max temp was only around 60-70

I hope u guys understand what I am saying :D