Broadwell-E max safe vcore?

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shonik09

Commendable
Jun 22, 2016
13
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1,510
Hi all,

So I wanted to ask if anyone knew what the max safe vcore for broadwell-E processors are? I saw in the intel cpu temp thread that max vcore for 6th gen was 1.35, but it looked like this was for the non-E range processors.

I currently have my 6850k clocked to 4.5 at 1.44v (really it is 1.42 adaptive, but the max voltage on a core goes to 1.44). The system is stable, and when testing with IBT the package got to a max package temp of 83 and the max core hitting around 77. For gaming the package tops out around 60 with cores hitting 50. I'm using a custom water cooling loop with a 360XE rad and a 240GTS, for just the CPU and a Titan XP.

Is 1.44 vcore dangerous, even though max temps for everyday use won't even approach 70?
 
Solution
1LiquidPC
If it were me, I would lower voltage just to be a bit more safe. I don't think its an exact science on what's safe and what's not. Technically, any voltage over stock could lower lifespan, but to what degree at specific voltage is unknown. What you do with your PC, temps, usage hours, ect. will all play a role. I know with Haswell-E, 1.3v was the number being thrown around to be considered "safe". However, I don't see a set number as being the cutoff. In other words, I doubt 1.31 is a big difference in longevity. For myself, I bought X99 platform and my 5820k at launch in August 2014. I've been using 1.325 manual vcore and running 4.4Ghz full speed no ever since. I've always OC'd this way. I originally tried adaptive voltages...
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1LiquidPC

1LiquidPC

Splendid
Oct 11, 2014
5,314
83
31,590
Thats very high vcore for sustained use. Being 14nm Broadwell-E, your CPU would have a lower max than my 22nm Haswell-E. I'm using 1.325 an won't go higher. I would not go over 1.35 for 24/7 if your willing to push things. Again, whats "safe" seems up for debate, but over 1.4 is going to degrade the CPU if used for extended periods. I do see you're using adaptive voltage. Have you recorded a logfile from in-game or everyday use to monitor voltages? Should be lower than benchmarks.
 
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shonik09

Commendable
Jun 22, 2016
13
0
1,510



Yeah so I've looked at the voltages during gaming, and the cores being used will go up to around 1.42, but obviously they fluctuate quite a bit. Everyday use again it is probably just one core hitting 1.42 and the rest are much lower. I don't have my PC on 24/7 though, right now it's only a few hours a day at most. Also I've only been using it with these voltages over the past few days. I guess it'd probably be safer for me to drop to 4.4 GHz then, and aim for a voltage sub 1.4?
 
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1LiquidPC

1LiquidPC

Splendid
Oct 11, 2014
5,314
83
31,590
If it were me, I would lower voltage just to be a bit more safe. I don't think its an exact science on what's safe and what's not. Technically, any voltage over stock could lower lifespan, but to what degree at specific voltage is unknown. What you do with your PC, temps, usage hours, ect. will all play a role. I know with Haswell-E, 1.3v was the number being thrown around to be considered "safe". However, I don't see a set number as being the cutoff. In other words, I doubt 1.31 is a big difference in longevity. For myself, I bought X99 platform and my 5820k at launch in August 2014. I've been using 1.325 manual vcore and running 4.4Ghz full speed no ever since. I've always OC'd this way. I originally tried adaptive voltages, but didn't like the spikes associated with it. I would see 1.425 spikes even with my adaptive set to 1.325. This is actually normal for adaptive.
 
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Solution
S

shonik09

Commendable
Jun 22, 2016
13
0
1,510
Yeah my literal max is around 1.44v with adaptive. The actual overclock adaptive voltage is set to 1.42v... I may play around and see what vcore I can get 4.4 stable at, was around 1.36 from what I remember which is pretty reasonable I guess, and 100MHz probably isn't worth the performance jump. Just wish i knew if there were people with 1.4v+ chips that have been running for a few months that are still ok...
 
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