Safe Voltages For Overclocking 8600k

[AlanZhouGaming -]

https://valid.x86.fr/784uyi
5.3GHz @ 1.47v

I have ran cinebench and aida64 and prime 95 and no crashes wondering if I could get 5.4ghz if I bump my voltage up to 1.49v (and I know this is extremely high)

I have a custom loop with an ekwb se360, se120, se120

 

[1LiquidPC]

I'd recommend against it, from a voltage perspective. Pushing degradation at that point, even if temps are fine. However, I'm sure you know the risks by this point.

 

[AlanZhouGaming -]

I'd recommend against it, from a voltage perspective. Pushing degradation at that point, even if temps are fine. However, I'm sure you know the risks by this point.

so 1.47v is a bit high but still okay? and my temps are at 80C

 

[mrfungi]

"Ok" differs from person to person. 1.47v is not ok to me for this chip, but will be to someone else. Depends on your end goal and your perspective on the matter. The fact you're asking indicates a sense of apprehensiveness, which is understandable.

Have you delidded the CPU? If you delid, your temps will drop. How long did you run prime95 and aida64 stress tests for? Was it just CPU test on Aida64 or did you test everything together? You might be able to achieve a higher clock underneath 90c if you bump it up to 1.49v now, you might not. You're running a custom loop, so just keep an eye on temps and don't get too silly.

It's your call really.

Good luck.

 

[AlanZhouGaming -]

"Ok" differs from person to person. 1.47v is not ok to me for this chip, but will be to someone else. Depends on your end goal and your perspective on the matter. The fact you're asking indicates a sense of apprehensiveness, which is understandable.

Have you delidded the CPU? If you delid, your temps will drop. How long did you run prime95 and aida64 stress tests for? Was it just CPU test on Aida64 or did you test everything together? You might be able to achieve a higher clock underneath 90c if you bump it up to 1.49v now, you might not. You're running a custom loop, so just keep an eye on temps and don't get too silly.

It's your call really.

Good luck.

prime 95 and Aida for 24h each and I have not decided and what voltage would burn a CPU out

 

[Finstar]

You've gone too far once you can smell it.
Coffee lake is still a very new architecture and i haven't heard of any casualties caused by voltage yet, so sure why not go to 1.49v
Though this is 100% up to you, i'm not taking any responsibility if it disappears in a cloud of smoke.

 

[mrfungi]

CPU degradation is not your only consideration here. You have to consider damage to your motherboard and PSU as well.

There's plenty of info out there on the 8600k regarding overclocking it and its voltage limit. Some say 1.4 is safe, others 1.45. Again, what is acceptable and what isn't differs from person to person depending on their end goal.

Myself personally I want the most clock for under 1.35v because that's what is comfortable for me. I'll go 1.4v if I want to see how far I can push it. I wouldn't push further, because I want my chip to last a while. I don't see a need to push further because my end goal is different. I'm still in the process of finding the sweet spot on my own 8600k. Sitting on 4.9ghz @1.27v at the moment.

Each chip is different. Yours could go 5.3ghz for x amount of years and mine could blow out at 4.9ghz before that and vice versa. But for sure, high voltages degrade your chip faster. Bear of all this in mind when you overclock your CPU.

 

[AlanZhouGaming -]

my chip can actually do 5.5ghz pretty stable at 1.51v and a reviewer has done it before but he was not stable at 5.5, any opinions on 5.5ghz@1.51v
and any chance I have sort of won the silicone lottery

 

[Finstar]

my chip can actually do 5.5ghz pretty stable at 1.51v and a reviewer has done it before but he was not stable at 5.5, any opinions on 5.5ghz@1.51v

First, i would like to congratulate you on winning the silicon lottery.
I don't think you really should run it that high for daily use though.