Can anyone look over my OC settings and give some feedback?

Hobopotamus · May 30, 2015

Hi everyone.
I overclocked my i5 4690k to 4,5 GHz. I only changed CPU ratio and CPU core voltage. I'm honestly not sure what other settings I should be tinkering with. When I'm running a Prime95 (v26.6) small FFTs stress test the temperature maxes out at about 78 degrees - the voltage is 1.25 on the core. Also I should probably mention that the cooler is an 212 EVO. I decided to only run it for 20 minutes, but will be giving it a more thorough testing if you guys will accept the settings I made

Here are the pictures:

Let me know if you need anymore information.
Thanks in advance!

i7Baby · May 30, 2015

Post your complete and detailed build.

See http://www.anandtech.com/show/8227/devils-canyon-review-intel-core-i7-4790k-and-i5-4690k/2
They got 4.5 at 1.20V using a H80i.

So 4.5 at 1.25V on a 212 evo is pretty good. And 78C on Prime 95 is good too.

Hobopotamus · May 30, 2015

Hi i7Baby!
Thanks for answering. I don't know why I didn't think of posting the complete build - my bad!
Here it is:
CPU: Intel i5 4690K @ 3.5 GHz (stock) - 4.5 GHz (currently)
Cooler: Coolermaster Hyper 212 EVO
Motherboard: MSI Z97 PC Mate
GPU: MSI GTX 970 Gaming 4G (core overclocked to 1520 MHz and memory overclocked to 7500 MHz)
RAM: 2x4 GB Crucial Ballisticx Sport
OS: Windows 8.1 Pro
PSU: Antec EDGE 550W
Case: Corsair 230T (the wires are sorted, so airflow should be good)

i7Baby · May 31, 2015

Nice build. Looks like you should be fine.

Aladdad · May 31, 2015

hm, i can barely reach 4.2Ghz stable with 1.150v with my i5 4690k with an h80i temps going upto 80c stress testing! i can't think of anything than just having a bad chip gaming temps are like 45-50c

Hobopotamus · May 31, 2015

Thank you, i7Baby. You don't think any CPU features should be enabled/disabled, such as Intel C state? - thanks in advance.

Aladdad, I had the same problem as you. The problem apparently occurs, because Prime95 (in v26.6-->) uses an option that creates unrealistic temperatures for the user. You should find the specific version 26.6 and not download any updates after that. Also use the test called "Small FFTs".

"Section 12 - Thermal Testing @ 100% Workload

Prime95 Small FFT's is the standard for CPU thermal testing, because it's a steady-state 100% workload. This is the test that Real Temp uses to test sensors. The link above is to version 26.6, which is well suited to all Core i and Core 2 variants.

Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

It's not necessary to run AVX code for thermal testing. Prime95 v26.6 produces temperatures on 3rd and 4th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a 35% larger Die.

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."

- http://www.tomshardware.co.uk/forum/id-1808604/intel-temperature-guide.html

i7Baby · May 31, 2015

You don't think any CPU features should be enabled/disabled, such as Intel C state? - No. Intel, especially haswell, is nice and simple - especially compared to AMD.

Hobopotamus · May 31, 2015

Ok, thank you!

Aladdad · May 31, 2015

Hobopotamus :

Thank you, i7Baby. You don't think any CPU features should be enabled/disabled, such as Intel C state? - thanks in advance.

Aladdad, I had the same problem as you. The problem apparently occurs, because Prime95 (in v26.6-->) uses an option that creates unrealistic temperatures for the user. You should find the specific version 26.6 and not download any updates after that. Also use the test called "Small FFTs".

"Section 12 - Thermal Testing @ 100% Workload

Prime95 Small FFT's is the standard for CPU thermal testing, because it's a steady-state 100% workload. This is the test that Real Temp uses to test sensors. The link above is to version 26.6, which is well suited to all Core i and Core 2 variants.

Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

It's not necessary to run AVX code for thermal testing. Prime95 v26.6 produces temperatures on 3rd and 4th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a 35% larger Die.

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."

- http://www.tomshardware.co.uk/forum/id-1808604/intel-temperature-guide.html

okay thanks!

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Can anyone look over my OC settings and give some feedback?

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