Strix 1080Ti & i7-4790k - CPU Voltages and Temperatures

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MrRobotOfKekistan

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Mar 15, 2017
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My 4790K runs at an average of 70 degrees C with spikes to 80.
I'm running it at 4.5Ghz with a Vcore of 1.198V and it's stable.
The default vcore was 1.260 and i stepped it down to 1.198V trying to reduce the Max Temp of the CPU.. but doesn't really seems to help.
The temps still spike to 80 once in a while almost stealthily coz I can bet my avg temp is around 70 degrees.

Are these temps a problem for the 4790K?
 
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LowlySkeleton
Temperatures on their own doesn't do as much damage as high voltage would. Higher voltages will lead to higher chance of instances of electromigration, which will degrade the silicon on your cpu die. You voltages are great so this shouldn't have too much more of an effect on longevity than what we would normally expect from stock voltages.

Also, once a cpu begins to approach really high temps, they will want to thermal throttle, reducing the amount of performance you get to try to cool themselves down. If they get REALLY hot, the system would normally shut down on its own. I hear that the Haswell chips go up to somewhere in the 90's before they thermal throttle.

Most often, if it doesn't thermal throttle, you are good. However, many...
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LowlySkeleton

LowlySkeleton

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Aug 5, 2015
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I think that your cpu's temps are fine, especially given that overclock you have for it.

Lowering voltages will only really help temps if you have too much of an excess for a given cpu frequency. Even with lower voltages, you are still pushing your cpu to work harder (overclocked) and it will try to draw the appropriate power it needs to particular parts of the cpu, which is why your cpu gets hot even at lower voltages.
 
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MrRobotOfKekistan

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Mar 15, 2017
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Thanks for taking the time to reply.
Just wondering coz I read elsewhere on this forum that 80 degrees is bad for the CPU longevity..
What do you think about that?
Should I step down the frequency?
 
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LowlySkeleton

LowlySkeleton

Reputable
Aug 5, 2015
235
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4,860
Temperatures on their own doesn't do as much damage as high voltage would. Higher voltages will lead to higher chance of instances of electromigration, which will degrade the silicon on your cpu die. You voltages are great so this shouldn't have too much more of an effect on longevity than what we would normally expect from stock voltages.

Also, once a cpu begins to approach really high temps, they will want to thermal throttle, reducing the amount of performance you get to try to cool themselves down. If they get REALLY hot, the system would normally shut down on its own. I hear that the Haswell chips go up to somewhere in the 90's before they thermal throttle.

Most often, if it doesn't thermal throttle, you are good. However, many overclockers don't really like the idea of cpus running higher than 70degrees, it just makes them feel uncomfortable. If you are comfortable with the idea of the max temps reaching 80, it should be fine. If you are not, you can either consider finding ways to beef up the cooling in your case or just back down your overclock a little.
 
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