i7-5820k(Non OC) Whats a Good load temp for the longest life time of CPU

[rzwan2007]

I live in a hot country (Sri Lanka), where ambient temp, at noon, is 35c. My Idle temps are 49c-51c; full load temp is about 65c. According to your Temp Guide, this is a OK temp. But what i want to know is: does the temp affect the lifetime of the CPU? For example will a 50c max temp processor live longer than 65c maxtemp CPU of the same type.

I work in 3D animation and the PC is pretty much always ON and working full rendering all the time. If i buy a better cooler and drop the temps to about 60c will it help the CPU's lifetime in the long run?

I know these kinds of questions get asked all the time; but everywhere I Google there is no clear answer about the correlation between CPU temp and life time of CPU. Some say cooler the CPU longer it will CPU last, some say it doesn't matter. Dont know who to believe.

Cooler: MasterLiquid Pro 240 (Radiator Mounted in top both fan Exhausting, both fans' speed switch set to the middle mode)
Case: Coolermaster HAF X
VGA: Asus Strix 980ti
Ambient Temp indoors is 28-35c

Case Fan Config: Two Top 200mm Exhaust Fan; One front 230mm Intake; 200mm Intake Side Panal; 140mm Rear Exhaust Fan; PSU Fan pointing downwards outside.

 

[Barney6262]

From my understanding, high temperatures accelerate the degradation of the silicon in the chip. Eventually this will cause the chip to stop working as the silicon separating the channels will degrade enough to allow shorting.

Most modern cpu's will not get to this stage for years. As long as your temps are below 90 degrees you will probably end up replacing the chip before it fails entirely.

 

[kgt1182]

Intel processors are warranted for 3 years under a maximum load temperature of up to 105°C.
That being said my 1st gen i5 480M laptop which hit 80°C at load for several hours while streaming still lasts well till now with not even a single MHz drop for 6 years.
Even a tower aftermarket heatsink would keep the temperatures in check. At about 70-80°C full load an overclocked Intel processor could last more than 5 years whithout degradation (i5 2500K, i7 2600K).
Your CPU which is at stock and not overvolted, and also under a liquid cooler would easily last you 10-15+ years without any noticeable degradation. And even if there is degradation, a small drop of 100 MHz would make it run for another 10+ years at stock clocks. That means your processor would last long before it fails even at 24/7 server utilisation, and by that time you would already have upgraded your CPU.

If you really fear even a small degradation, or plan to use it for 100+ years for whatever reason, undervolt your CPU by a few notches. Maybe 0.002-0.004V It would run cooler.

Your hard disk will fail first. Backup.