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

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Were you able to achieve stability at 4.4Ghz?

  • Yes

    Votes: 2 3.7%

  • No

    Votes: 52 96.3%
  • Total voters
    54


All settings look fine.
Maybe some other program is using the CPU while IBT is running? Open up task manager and check.
 




Hi, tried again with Task Manager open, nothing else using it. No programs open, not sure about system processes etc. Again I got 63 GFlops. Here are the settings I have now in case anything jumps out at you as wrong:

dVR780N.png


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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?
Click to expand...

Not really. The GFLOPS depends on several different system variables.

What is your memory speed and timings?

Yogi
 



qbr5P4C.png

 
Thanks, I will do that. I didn't know I would be changing anything to do with memory, I didn't look into that because I read that XMP should be off. http://www.overclock.net/t/1411077/haswell-overclocking-thread-with-statistics# But yeah,

i-have-no-idea-what-im-doing-dog.jpg
 
Well had a look in BIOS, and the XMP was set to auto and had XMP 1.2 (i think) already loaded, so clicking and loading the XMP 2.1 just made it remain the same.
 
I just gave OCing my new 4670k a shot.
batch 3334C066, Costa Rica
MSI z87 g45
8gb ripjaws 1866

left everything auto, went in and changed multi to 46, booted into windows but bsod at 2nd IBT run
lowered to 44, everything auto and no problem.
went in changed vcore to 1.2, multi to 46 ran IBT no problem. *question* even though I set vcore to "override" vs "auto" or "dynamic" (which I assume is adaptive), cpuz still shows cpu voltage dropping while idle to like .8 or whatever. ramps up when load is on, but I also notice it is higher than 1.2 (like 1.215), which should be it max. ideas? MSI overclocking is kind of confusing I am used to straight bios.
I think that I will go in and change the other settings listed in this post, and see if I can get 48 at 1.25 or less.
Temps under IBT load (on one core) are a little higher at 1.2v than Id like, 81-82C on one core, the rest are mid-70 or high 60s (WTF is up with that), using corsair H90.
like I even need to overclock this thing.
sometimes you just have to....see.
looks like all my worrying was for naught because I seem to have likely hit the haswell lotto.
 
Yogi do you have any idea about the voltage discrepancy I mentioned? Should I lower the vcore to 1.85 so that the board only takes it to 1.2?
Or about the difference in core temperatures...like 10% +/- hottest to coolest.
 
Yogi do you have any idea about the voltage discrepancy I mentioned? Should I lower the vcore to 1.85 so that the board only takes it to 1.2?
Or about the difference in core temperatures...like 10% +/- hottest to coolest.
Click to expand...

IDK about the voltage differences. Mine is real stable in Override. As long as you stay below 1.300 v. Vcore, you're safe, so you have a lot of room to OC further.

Core temperature variation is just a fact of life. I have no concrete explanation.

Yogi
 
I think it is another setting in bios that I haven't had time to find yet. It is regulating the voltage still when cpu is idle, so it doesn't draw as much power. Power is stable at 1.215 when under load, its just that cpuz is displaying it as being .015 over what it should be locked as at max in bios, 1.20v (when fully loaded).
i'll figure it out at some point. for now I think I will just set it a little lower in bios, so at full tilt it is not getting more than what I want it to.
still a bunch more tweaking to do, but im pretty happy with the fact that I have one of the faster fastest chips on the planet lol. and its not nearly as hot as I thought it would be.
 


That is because the BIOS reports package temps, not per core temps
 


Do the CPU frequencies also lower when in idle, if so:
Try setting the power option to high performance.
 
no, frequency stays the same. The only thing that changes is the vcore. once the cpu goes under load, vcore ramps up and stays up and stable at the set voltage (+ the .015 I mentioned). im sure its some sort of adaptive voltage setting in the bios I haven't come across as of yet. I haven't really looked too hard to find it, but im sure will once I dig a little deeper. like I was saying, the MSI bios overclocking is strange to me. looks good, but rather confusing.
BTW, I am stable at 4.4 ghz with a vcore of 1.152, all other settings are auto. guess my tim cured during stress tests, because now temps all within 5c of each other, highest load temp is 61c, others all in the mid-50s.
oh yes, I hit the haswell lotto.
 
to gairleog,
I had the same problem. running approx. 1/2 gflops mentioned here. I had just re-installed windows 7 on my overhauled rig, and that was odd to me too.
I installed SP1 for windows 7 and viola, now im 115-120. I don't think windows 7 has the correct instruction set for IBT until you install SP1. if youre running windows 7.
 
What do you guys think about ASRock's optimized OC presets? I'm getting rock-solid stability with them - i5-4670K @ 4.4 GHz, temps max 70c per core. Tflops only at 63 per test atm, but I must try nagasama's tip and install SP1.

Are these presets safe, or do they have the bad habit of skyrocketing the voltages to insane amounts?
 


They don't necessarily rocket to insane amounts, only if you let them do automatic testing. But a regular preset would only overvolt some over what you actually need.
 
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