Intel God's "Quick & Dirty" OC Guide to 4.4Ghz with Haswell

Page 6 - Seeking answers? Join the Tom's Hardware community: where nearly two million members share solutions and discuss the latest tech.
Toggle sidebar Toggle sidebar

Were you able to achieve stability at 4.4Ghz?

  • Yes

    Votes: 2 3.7%

  • No

    Votes: 52 96.3%
  • Total voters
    54
My chip must be pretty bad then. Max temp is 90 while minimum is 37 while running Prime95 on mixed test. CPU multiplier set to 43 with voltage at 1.29 🙁 running gigabyte z87-ud3h w/ evo 212. Can't update to latest bios since I'm running x64 bit.
 
That is a very good result, heat-wise, for that kind of voltage. The voltage will determine how much heat you generate more than the multiplier.
 


A few hours after I sent that message my highest recorded temp recorded by RealTemp was 100c on one of my cores with some of them being 97-99c.
 
It works, and I somehow get 4.6Ghz (with Hyper EVO+ 212) and the temps reach only up to 76C under load...

However, some of the terms you mention like RING or whatever, it's confusing to me. I use a Gigabyte motherboard and it has so many different names. One of them I could not find at all.
 


Could you mention all the other settings you have? I have a Gigabyte motherboard as well and I couldn't find some of the terms Intel God used while maintaining only 4.3GHz.
 
Thanks everyone for the very interesting and informative discussion. I'm trying to overclock my 4770K on an ASRock Z87 Extreme4 and a NZXT Kraken X60 and have managed to hit 4.5GHz (Lot L315). The only things I've changed so far are the CPU frequency (duh) and VCore (1.225).

I'm currently running the AIDA64 stress test and temps haven't exceeded high 70s (79C). I also ran the Intel Burn Test on High and managed to hit 89C. While all 10 iterations produced the same value, at the end of the run instead of the success error message, I got a "the executable was terminated unexpectedly" dialog box - not from Windows but from IBT! Very confusing - has anyone seen this before?

I'm going to let AIDA64 run overnight and then try again tomorrow with IBT, followed by OCCT and Prime95 (stability is extremely important for me). Any recommendations?

Thanks for helping! :)
 
I was able to reach stable 4.4 GHz with (Asus Z87-A):

- Vcore 1.375 (IMPORTANT: use Fixed, not 'Adaptive' or 'Offset')
- Cache Ratio and Voltage at "Auto" (default)
- CPU Input Voltage 1.9

with my 4670K.

Started with the settings at the top of the page but got a BSOD with 3DMark instantly. With Vcore 1.35 got a BSOD when trying a second consecutive run. Vcore 1.4 was stable and I was able to drop to 1.375 stable (didn't bother fine tuning more as I'm not oc'ing 24/7).

Could also revert Cache settings to default.

Temps peak at 75 celsius with gaming load (Zalman CNPS10X Performa). Haven't tried synthetic 100 % loads though and won't.

Plus performance gains were marginal at best so reverted to default clocks anyway.

Could probably go a bit higher but pointless performancewise.

It's important to increase the Input Voltage in accordance to the CPU Vcore (Input V = Vcore + 0,4 at MINIMUM). Within reason of course.

Also, disabled EPU power saving feature from BIOS as well as CPU External Voltage Regulator (if applicable) and the CPU Spread Spectrum.

BCLK and DRAM at default.

Additionally I prevented the AI Suite (similar to the A-Tuning application shown) from running with Windows startup as it potentially causes instability (interferes with BIOS settings).

I could start it after bootup and probably could have re-enabled the startup loading too after system stable.

OC from BIOS only at first, helps a lot!
 
following up with another post to provide more info:

it's worth noting that the Offset and Adaptive voltage modes can be used to reproduce the stable Vcore voltage found with fixed setting.

With Offset mode, set your desired minimum voltage and the additional overclock voltage you need (positive offset). In my case for example 1.2 base + 0.175 offset equals 1.375 max or turbo mode voltage. Finding the minimum stable idle voltage requires a bit of trial and error for sure.

It's not recommended to use a negative (-) offset with Haswell (ie. set the maximum voltage and the allowed voltage drop for idle state) as this may cause idle state instability. Feel free to experiment however, it may be more convenient to find the minimum stable idle state voltage this way first. Then set this as your base voltage and apply a positive offset to reach necessary oc voltage.

Adaptive is bit more advanced a technique and allows for more dynamic voltage scaling based on cpu load. Simply set the desired voltage and leave other settings at auto (if there are other settings). HOWEVER, note that when running applications with AVX extensions, such as Prime and AIDA, the Vcore will be automatically ramped up by +0.1v from the set value.

This is hardcoded into the CPU and cannot be disabled. Non-issue for general gaming but worth noting! Using Adaptive voltage in conjunction with stress testing can account for any abnormal temperature spikes and also be the culprit if you can run stress tests but nothing else stably, if that's even possible...

A big thanks for a lot of this information goes to Asus ROG! Felt compelled to mention that even if it diminishes my own wizardry...

 
It took me to get 4.3ghz n run prime95 small FFT 3:10 hours stable with no problem these settings

CPU Mult 44x
CPU Cache mult 35
CPU Vcore 1.3
CPU Cache Voltage 1.2
CPU Input Voltage 1.9
rest on auto n
all c state disable
 
I was able to run IBT on high for 10 runs successfully, but my CPU temps are hitting 90-100 degrees on 100% load (no throttling) is that too high? It idles at 30 degrees

Asrock Z87E-ITX
i4670k
Corsair h80i

CPU multiplier: 44
CPU cache ratio: 30
CPU Vcore: 1.32 (lowest it could be to achieve stability)
CPU cache voltage: 1.25
CPU input voltage: 1.9

Anything I'm doing wrong?
 
I was able to run IBT on high for 10 runs successfully, but my CPU temps are hitting 90-100 degrees on 100% load (no throttling) is that too high? It idles at 30 degrees

Asrock Z87E-ITX
i4670k
Corsair h80i

CPU multiplier: 44
CPU cache ratio: 30
CPU Vcore: 1.32 (lowest it could be to achieve stability)
CPU cache voltage: 1.25
CPU input voltage: 1.9

Anything I'm doing wrong?
Click to expand...

Temps over 90*C. are too hot and Vcore above 1.300 v. is too high.

Looks like you need to drop back to 4.3 GHz.

Yogi
 




Thanks for the tip, I've been too scared to trying upping that. I've heard recommendations to up input voltage by 0.001 increments (e.g. 1.901, 1.902, etc.) would you agree?
 


Thanks for the advice! I tweaked my settings to:

CPU multiplier: 43
CPU cache ratio: 40
CPU Vcore: 1.30
CPU cache voltage: 1.25
CPU input voltage: 2.0

Stress tested for 8 hours and the max temps were 82 degrees, so much better. I could probably fine-tune it more but I think i want to focus more on OCing my GTX 770 for more tangible gaming improvements.
 
I was able to hit 4.4 with my 4670k thanks to this guide!

CPU multiplier: 44
CPU cache ratio: 35
CPU Vcore: 1.25
CPU cache voltage: 1.2
CPU input: 1.9

My temps hit 94C during a 10 run IBT so I dropped to the following:

CPU multiplier: 42
CPU cache ratio: 35
CPU Vcore: 1.18
CPU cache voltage: 1.2
CPU input: 1.8

Temps maxed out at 86C on IBT. I know my main issue is my CPU cooler, it is an EVGA mITX ACX 92mm small tower cooler. I also have everything, including a GTX 670, jammed into a mITX case (Hadron Air and ASRock Z87-E). So it seems like I have a decent chip since it is stable at lower voltages.

Any suggestions on what speed I should run it? I know 94C is high but it should never reach that since my biggest workload would be games. Should I be on the safe side and run it at 4.2 or lower?

Thanks to Intel God for the guide!

FYI, anyone interested in mITX should do it. I can't believe how much power this thing has in such a small space.
 
Could someone help. I am at 4.4ghz

CPU multiplier: 44
CPU cache ratio: 38
CPU Vcore: 1.28
CPU cache voltage: 1.25
CPU input: 1.9


With IBT I pass test on high but it says I have a speed of 63 GFLops. Is this low? I see some people on here getting over 100 Gflops.

Anything I am doing wrong?



 
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom