i7 6700k 1.40v OC at 4.7GHz, are my temperatures safe?

[BNWilliams007]

Hello, I'm trying to overclock my CPU for the first time and have received good and stable results when overclocking from 4.0-4.6 GHz at 1.35v, however, I seem to be reaching my limit when I try to OC at 4.7 GHz. I received a BSod when I overclocked at 4.7 GHz with 1.35v so I tried bumping it to 1.40v but I began to get worried about my temperatures. My cores normally float between the 60s to low 80s at this voltage but occasionally my cores will spike to high temperatures. Last night when I was stress testing for about 30 minutes, one of my cores briefly spiked to 90°C. I heard that you should try to keep your voltage for Skylake no higher than 85°C but is this referring to current temperature or max temperature? I tried lowering the voltage to 1.375 and up, but then my PC gets a BSoD every time I begin a stress test. I tried stress testing today for a few minutes and took a screen capture using both Aida64 and x264. I am using a Noctua nh-D15S with a second fan as my CPU cooler.

Aida64 Stress Test: http://i.imgur.com/9K6lr68.png
x264 Stress Test: http://i.imgur.com/t2xued6.png

Here are my PC components list if it helps: https://pcpartpicker.com/user/BNWilliams007/saved/Yg2CmG

So do you guys/gals think it would be safe to continue overclocking with 1.40v at 4.7GHz, or should I settle down for 1.35v at 4.6GHZ? Thank you for your time.

 

[dudio]

Is 100 Mhz even worth it??

 

[BNWilliams007]

I don't know, ^^; I'm new to overclocking so I'm unsure of the performance increase 100 MHz would bring, but I suppose that I wouldn't want to risk the lifespan of my CPU so I guess I should stick with 4.6Ghz?

 

[dudio]

I would.. you are pushing the voltage up, and heat and voltage are kinda the enemy, and when you consider how low of a voltage the CPU runs on, every .10 is quite a bit. 100 Mhz is nothing, it just sounds cool. I'd be happy with the 4.6Ghz you've achieved.

 

[BNWilliams007]

Ok, I'll stick with 4.6 Ghz, thank you for your feedback.

 

[BNWilliams007]

I ran a stress test with X264 all night at 1.375v (1.35v crashed) with 4.6Ghz and it didn't crash, my temps were within the 50s and 70s for the most part, though one core at some point briefly went to 80°C this would still be considered stable though for every day use right?

Also I tried changing my core voltage override to adaptive mode to use for every day use but then I noticed my core voltage seems to be going up to above 1.4v and 1.5v, is this normal? I thought adaptive mode was to lower your voltage for every day use not increase it?

 

[dudio]

Have a look at this thread:

http://www.tomshardware.com/answers/id-2946975/6700k-safe-overclocking.html

 

[BNWilliams007]

I took a look at that thread and it turns out that my problem was that I had my power options set to 'High Performance' from stress testing when it should have been set back to 'Balanced'. Thank you for your help, my voltage is now much lower.