4790k stress test temperature question

[phreshman87]

I have a 4790k with an asus maximus formula vii board, 32gb of ram, and a corsair h110 cooler. While performing a stress test using aida64 I found that my temps were around 80-90 degrees Celsius at 4.8 MHz, at 100% load, and voltage at 1.327. I backed down to 4.6 MHz and my temps dropped to about 65-70 degrees Celsius at 1.2xx volts. Are these normal and safe temps at 4.8 MHz for my cpu with this set up and this stress test? Or maybe I should redo the thermal paste or is it a bad cpu? if anyone can give me some insight on this, that would great. Thank you in advance!

 

[KingPenguin]

I don't know if I would call them normal and safe temperatures, but if it were my computer I would be okay with running at those temperatures for the times that I wanted to have the extra speed, but when I am casually using my computer I would not want it to be running at that high of a temperature constantly. But, really answering your question, those temperatures are fairly normal when you are overclocking, lower temperatures are often seen, but some CPU's run a little hotter than others.

 

[CompuTronix]

phreshman87,

At 22C Standard Ambient, here's the typical operating range for Core temperature:

80C Hot (100% Load)
75C Warm
70C Warm (Heavy Load)
60C Norm
50C Norm (Medium Load)
40C Norm
30C Cool (Idle)

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT

 

[phreshman87]

phreshman87,

At 22C Standard Ambient, here's the typical operating range for Core temperature:

80C Hot (100% Load)
75C Warm
70C Warm (Heavy Load)
60C Norm
50C Norm (Medium Load)
40C Norm
30C Cool (Idle)

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT

thank you.
My original post I realize that I was speaking about max temp at full load. I ran another stress test using aida64 and found that i had average temperature between all 4 cores of about 63 degrees celsius at full load. Also, my cpu average temp was 59.2 degrees celsius. My cpu temp does idle around 30 degrees celsius. My maximum core temp on all my cores was 92 and the minimum was 29. Does this bit of information sound more normal and safer to you guys?

 

[CompuTronix]

Although AIDA64 is good for stability testing, it's poorly suited for thermal testing.

Since everyone tests their rigs using X stress software at Y Ambient temperatures with Z measuring utilities resulting in CPU or Package or Core temperatures, it's impossible to compare apples to apples. This is why processor temperatures are so confusing.

Prime95 Small FFT's is the standard for CPU thermal testing, because it's a steady-state 100% workload. Prime95's default test, Blend, is a cyclic workload for testing memory stability, and Large FFT's combines CPU and memory tests. As such, Blend and Large FFT's both have cyclic workloads which are unsuitable for CPU thermal testing.

Other stability tests such as Linpack and Intel Burn Test have cycles that peak at 110% workload, and are also unsuitable for CPU thermal testing. The software utility OCCT runs elements of Linpack and Prime95.

Shown above from left to right: Small FFT's, Blend, Linpack and Intel Burn Test.

Note the steady-state thermal signatures of Small FFT's, which allows accurate measurements of Core temperatures.

Shown above from left to right: Small FFT's, Intel Extreme Tuning Utility CPU Test, and AIDA64 CPU Test.

The "Charts" in SpeedFan span 13 minutes, and show how each test creates different thermal signatures. Intel Extreme Tuning Utility is also a cyclic workload. Although AIDA64's CPU test is steady-state, the workload is below Thermal Design Power (TDP), which is insufficient.

Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot.com/2011/04/prime95-266.html

Run only Small FFT’s for 10 minutes.

Use Real Temp to measure your Core temperatures, as it was designed specifically for Intel processors: Real Temp - http://www.techpowerup.com/downloads/2089/real-temp-3-70/

Also, what is your ambient temperature?

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT

 

[phreshman87]

Although AIDA64 is good for stability testing, it's poorly suited for thermal testing.

Since everyone tests their rigs using X stress software at Y Ambient temperatures with Z measuring utilities resulting in CPU or Package or Core temperatures, it's impossible to compare apples to apples. This is why processor temperatures are so confusing.

Prime95 Small FFT's is the standard for CPU thermal testing, because it's a steady-state 100% workload. Prime95's default test, Blend, is a cyclic workload for testing memory stability, and Large FFT's combines CPU and memory tests. As such, Blend and Large FFT's both have cyclic workloads which are unsuitable for CPU thermal testing.

Other stability tests such as Linpack and Intel Burn Test have cycles that peak at 110% workload, and are also unsuitable for CPU thermal testing. The software utility OCCT runs elements of Linpack and Prime95.

Shown above from left to right: Small FFT's, Blend, Linpack and Intel Burn Test.

Note the steady-state thermal signatures of Small FFT's, which allows accurate measurements of Core temperatures.

Shown above from left to right: Small FFT's, Intel Extreme Tuning Utility CPU Test, and AIDA64 CPU Test.

The "Charts" in SpeedFan span 13 minutes, and show how each test creates different thermal signatures. Intel Extreme Tuning Utility is also a cyclic workload. Although AIDA64's CPU test is steady-state, the workload is below Thermal Design Power (TDP), which is insufficient.

Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot.com/2011/04/prime95-266.html

Run only Small FFT’s for 10 minutes.

Use Real Temp to measure your Core temperatures, as it was designed specifically for Intel processors: Real Temp - http://www.techpowerup.com/downloads/2089/real-temp-3-70/

Also, what is your ambient temperature?

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT

Thanks you for your help.

my ambient temp is about 68 degrees with my window open. And my rig on my desk is about 3.5 feet from the open window.

I downloaded prime95 and realtemp. I couldn't keep my voltage down at 4.8. I was mistaken earlier when I said I was operating at 1.327, when i checked and i was actually running at 1.378 and that was why i was getting this high temps in the 80-90s deg celsius.
So I kept trying to running prime95 and real temp at 4.8ghz at 1.29v all the way up to 1.37volts. Unfortunately, I kept crashing within the 10 minutes of running prime95 in each voltage all the way to 1.370v. I backed her down to 4.7 @1.300v and achieved temps on 3 cores in the mid to high 70s, but had 1 core 10 degrees celsius lower which maxed at 68. also, minimum temps in the high 20s for all 4 cores.

 

[CompuTronix]

Then it seems you have found an ideal overclock which balances Core voltage and Core temperatures without exceeding maximum recommended limits of 1.300 volts and 80C normalized at 22C standard ambient.

Well done! Enjoy your rig! 😀

CT