Overclocking i5 4690K High Heat Temps

Zorac12,

I was watching for you to PM me regarding this thread.

Which of Prime95 version 24?

There are several versions of 24.X.

24.6
24.9
24.10
24.11
24.12
24.13
24.14
24.15

Prime95 Release History - http://en.wikipedia.org/wiki/Prime95

I need to know so I can test it for you.

Also, what is your ambient temperature?

Thanks,

CT

MisterSprinkles,

Prime95 version 26.6 is pre-AVX and works fine across all platforms.

Also, AIDA64 is not a blanket solution. In addition to not being freeware, it has issues of it's own.

The CPU test when run individually is well below TDP, and the FPU test when run individually will cause your core temperatures to skyrocket like P95 v28.5. While good for stability testing, it's poorly suited to thermal testing.

Prime95 Small FFT's is a steady-state 100% workload, which makes it ideal for thermal testing.

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

Thanks,

CT

Zorac12,

Room temperature is close enough. Thank you for that information.

P95 v24.13 was a "Test Release" from July, 2005.
P95 v24.14 was a "Release" from August, 2005.

After spending some time searching, I could not find either available to download. However, the oldest available P95 version is 25.11 which was a "Release" from July, 2009 that I downloaded and tested against v26.6.

The results with Small FFT's were identical.

Sorry I wasn't able to download and compare v24.13.

Nevertheless, I think the reason you're reaching 100C "Throttle" temperature with v26.6 as well as 28.5 is due to a problem with your Enermax Liqtech 240 liquid cooling system.

Please check and confirm that the pump and fans are indeed running, and that your water block is properly and securely attached. It's possible that you have a faulty power connection, defective pump or kinked tube. You should also remove your water block to inspect the thermal compound dispersal pattern.

Since you're using Real Temp, please also run Core Temp to confirm "Power" (watts) at idle and during P95 v26.6 Small FFT's. Also use CPU-Z to confirm Core Voltage and Core Speed during Small FFT's.

At idle, if your C-States and power saving features are enabled in BIOS, you should see less 25 to 30C and less than 2 watts in Core Temp. If your idle temperature is elevated to near 40C, this indicates a problem with your cooling system.

With a short 1 minute burst of Small FFT's, you should see your Core Speed begin to "Throttle" in CPU-Z as your Core temperatures approach 100C, and the power approaches TDP (Thermal Design Power), which is 88 watts for you i5 4690K.

If this is your result, it would indicate that there is definitely a problem with your cooling system. If you get a significantly different result, then we'll take a different approach to troubleshooting this problem.

Keep in mind that when this problem is solved, you can expect that P95 v28.5 will still overheat your processor, while v26.6 will not.

Let me know what happens.

Thanks,

CT

I would definitely change out the cooling system.

As far as overclocking and BIOS settings are concerned, unfortunately the terminologies used by different motherboard manufacturers are not standardized, which makes it confusing. You need to read your motherboard manual and perhaps search ASUS's website for details, explanations and definitions specific to your motherboard's BIOS settings.

Please give this a read: 3 Step Guide to Overclock Your i7 / i5 Haswell Platform - http://www.overclockers.com/3step-guide-to-overclock-intel-haswell/

Let me know what happens with your H100i.

Keep in mind that when mounting the water block, there is a known problem with the screws being slightly too long to allow for adequate contact pressure against the CPU. If the water block doesn't feel securely attached or can be wiggled, the fix is to use small "O" rings between the back plate and the screws to correct the problem.

CT

Zorac12,

Thank you for that information. I am well aware of Intel's use of TIM in their 3rd and 4th Generation processors.

My Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html - covers the same topic in Section 9 - The 22 Nanometer Problem

Please give it another read, as it covers a great deal of information, and will help you to reach a higher level of understand about your processor temperatures.

CT

Zorac12,

Also present in my Temp Guide in Section 14 - Improving Temperatures is the following:

Concerning Thermal Interface Material (TIM), here's some helpful links:

Thermal Paste Comparison, Part One: Applying Grease And More - http://www.tomshardware.com/reviews/thermal-paste-heat-sink-heat-spreader,3600.html

Thermal Paste Comparison, Part Two: 39 Products Get Tested - http://www.tomshardware.com/reviews/thermal-paste-performance-benchmark,3616.html

Personally, I use the short edge of a business card to very carefully apply a thin, even coat by troweling out the thermal compound in four directions until there are no bubbles, lines or imperfections.

Although most people don't have the patience required for this method, I've never had a problem with temperatures, and the contact dispersal pattern has always been perfect with 100% coverage.

CT

Fair enough ... I'll be standing by.

CT