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

[DeltaRecon2552]

Yes it will. But it also shoots yourself in the foot. Moving it from within about 3 ghz of the cpu core multiplier will rob performance quite a bit.

 

[sirbock]

Thanks Y0GI, i have just simply copied the CPU VCore.
I will try lower values for that.

 

[airplanegeek]

4.7GHz 4670K 47x 100.01 MHz
Vcore 1.30
VRIN (CPU Input) 2.10
Ring Bus (cache) 1.28
Ring Bus Multi 40X
Thermaltake Water 2.0 Extreme w/ Arctic MX-4 between die, heatspreader, and heatsink
Temps <90C Pime95 overnight

 

[sirbock]

Finally got to 4.4GHz with stability and got good temps. But I had to changed out my cooler. I am just not sure why I was getting crappy Temp's on 212 Evo and EVGA's superclock when both can easily have the same good heat dissipation... Or I was just really bad on installing tower heatsinks...

So far tested

4.2 GHz at 1.140 Vcore and run stable with Aida64 and P95 run both an hour +
4.4 GHz at 1.200 Vcore the same test I did with Aida and P95 for an hour +

^both using 1.100 Cache voltage

Still testing how low Vcore I could get before both 4.2 and 4.4 OC will BSOD upon 5 mins in P95.

Then maybe test out 4.5+

Although can anyone share some of your set ups specially with 4670K

like Cache Volt, Vcore, Input Volt etc. Just want it as reference. Trying to refer my set up on other 4670K but most videos I saw had different Mobo's with different naming on the volts...

Will upload some img later after Im done testing.

Same cpu and mobo
Running now this settings:
CPU ratio 46
CPU cache ratio 44
BCLK/PCIE freq 105
4,62 Ghz
Ram G.Skill Ares 2400, oc at 2520

CPU Vcore fixed 1.265
CPU Cache voltage fixed 1.150
CPU Input voltage 1.95 fixed
System agent voltage +0.500
Loadline Calibration 3
Some powersaving settings disabled

AIDA64 10 mins stable - temps under 60°C
IBT 3x10 times high stable - temps under 80°C

I will test Prime95 and OCCT probably tomorrow

 

[Som3one]

Looks like I have to withdraw the doubts I have mentioned about Prime.
As it turned out, I could indeed throw everything at my 4.5 overclock (except for Prime). No matter if it´s other stress tests, BF4, video editing or whatever.
BUT TrueImage bluescreened on me. How weird is that?
And I just can´t get it stable at 45. 🙁

 

[DeltaRecon2552]

Try upping your BLCK Frequency a little from 4.4 ghz. It should only take about a 2% increase.

 

[Som3one]

Yeah, but first I am going to make sure it really is stable at 4.4 and try lowering my VCore accordingly.

 

[DeltaRecon2552]

Yeah, but first I am going to make sure it really is stable at 4.4 and try lowering my VCore accordingly.

My chip is stable at 4.2 ghz at 1.230 and won't go any higher than that. No matter what vcore I try.

 

[JAYFRESH1271]

Yeah, but first I am going to make sure it really is stable at 4.4 and try lowering my VCore accordingly.

My chip is stable at 4.2 ghz at 1.230 and won't go any higher than that. No matter what vcore I try.

My chip takes 1.285v 1.20v cache 2.0v input for 4.3ghz pass ibt on high 10 runs n ran prime95 for 8 hours no errors or blue screen but once i try to get to 4.4ghz i pass ibt but get a blue screen on prime95 or i will get a blue screen on ibt so for now i am at 4.3ghz since i try so many setting for 4.4 n nothing

 

[Som3one]

It´s really funny to see how a chip begins to fight back from a certain overclock on.


Quick question(s):
What do LLC setting do you guys use? And how can i figure out what level it is really set to when I leave it on Auto?

 

[DeltaRecon2552]

Whatever the auto is for it.

Should I disable Intel Speedstep? I'm thinking it might be holding me back. Also, should I disable some of ASUS's power saving settings?

 

[airplanegeek]

Well, not sure what the ASUS power saving settings are but for cpu i disabled C3, C6/7, and turbo boost

 

[DeltaRecon2552]

Alright. Well I tried disabling everything setting known to man that would possibly hinder an OC and it didn't help. This chip sucks. Wish I had went with the 4770k.

 

[allavett]

Hello,
Just built my new rig and want to do some fast overclocking. But as it is my first intel build I am a bit lost in BIOS.
I am using MSI Z87 GD65 gaming motherboard and core multipliers and voltage names are a bit diiferent then they are in OP.
Maybe some of you can help me and teach me gods way of quick and dirty..
I took 2 shots of my BIOS - for some reason taking screenshots with F12 in BIOS does not work, sorry for bad quality🙁

Spoiler

E: What lines should I edit as mentioned in OP?

 

[Y0GI]

What lines should I edit as mentioned in OP?

Got back to page 3 of this thread and about 1/4 of the way down the page I posted some screenshots of MSI BIOS settings to use.

Yogi

 

[Jonathan Cave]

Hello,
Just built my new rig and want to do some fast overclocking. But as it is my first intel build I am a bit lost in BIOS.
I am using MSI Z87 GD65 gaming motherboard and core multipliers and voltage names are a bit diiferent then they are in OP.
Maybe some of you can help me and teach me gods way of quick and dirty..
I took 2 shots of my BIOS - for some reason taking screenshots with F12 in BIOS does not work, sorry for bad quality🙁

Spoiler

E: What lines should I edit as mentioned in OP?

i too have the MSI board ableit the 45 not 65, however this thread will help you translate the OP's bios options.

http://www.tomshardware.co.uk/answers/id-1863019/2ghz-4670k-complete-advice-fire-strike-extreme-pics.html

 

[allavett]

i too have the MSI board ableit the 45 not 65, however this thread will help you translate the OP's bios options.

http://www.tomshardware.co.uk/answers/id-1863019/2ghz-4670k-complete-advice-fire-strike-extreme-pics.html

Thank you, will give it a look

 

[D3AD_PIX3L]

Yeah, but first I am going to make sure it really is stable at 4.4 and try lowering my VCore accordingly.

My chip is stable at 4.2 ghz at 1.230 and won't go any higher than that. No matter what vcore I try.

My chip takes 1.285v 1.20v cache 2.0v input for 4.3ghz pass ibt on high 10 runs n ran prime95 for 8 hours no errors or blue screen but once i try to get to 4.4ghz i pass ibt but get a blue screen on prime95 or i will get a blue screen on ibt so for now i am at 4.3ghz since i try so many setting for 4.4 n nothing

I am in a similar situation, after hours of adjusting and running Prime, I have found the following results-

4.2 core / 4.0 cache required volts
1.28vcore / 1.19vcache / 1.80vinput
Heat: 80 c under full load (running Prime95 small FFT for 20 hours)

4.3 core / 4.1 cache required volts
1.32vcore / 1.19vcache / 1.80vinput
Heat: 84 c under full load (running Prime95 small FFT for 12 hours fo far)

I don't think I will ever make it to 4.4. 🙁

In case anyone is wondering, I am using an Asrock z87 Extreme4 motherboard.


=============UPDATE AS OF 04/15/14====================================
I did a fresh install of Windows 8.1 and started getting random hal.dll & ntoskrnl.exe BSOD's. After doing some research online, it would appear that these errors are related to the CPU so I went back to stress testing...

Downloading the latest Prime95 (28.4) 64bit. I ran small FFT and the temps went up to 100c straight away!
I immediately stopped the test and went down to my 4.2 settings, same result - straight up to 100c. I then downloaded a previous version (25.11) and ran small FFT and the temps were barely hitting 80c. Going back and forth between the two I tried doing a blend on the latest and got instant BSOD and then went to 25.11 and ran blend, but crashed after an hour or so. So now I am thinking I am back to square one in terms of being stable.

Doing a bit of reading this morning, I hear a lot of people are losing their OC when moving to Windows 8.1... I am going to spend some time tonight trying to dial it back in, but wanted to see if anyone else has this issue and has any recommendations?

 

[allavett]

D3AD_PIX3L, why are you pushing cache multiplier? It gives very little performance wise. But hits stability quite bad. Just leave it at 34-35 and only push CPU multiplier. When you get 4.4GHz stable on CPU, you could start pushing cache if you want.
Changing 1 variable at a time will make overclocking much easier 😉

 

[airplanegeek]

I disgree. Upping cache multi gave me a performance boost. All you need to make it stable is just add more cache voltage

 

[JAYFRESH1271]

Yeah, but first I am going to make sure it really is stable at 4.4 and try lowering my VCore accordingly.

My chip is stable at 4.2 ghz at 1.230 and won't go any higher than that. No matter what vcore I try.

My chip takes 1.285v 1.20v cache 2.0v input for 4.3ghz pass ibt on high 10 runs n ran prime95 for 8 hours no errors or blue screen but once i try to get to 4.4ghz i pass ibt but get a blue screen on prime95 or i will get a blue screen on ibt so for now i am at 4.3ghz since i try so many setting for 4.4 n nothing

I am in a similar situation, after hours of adjusting and running Prime, I have found the following results-

4.2 core / 4.0 cache required volts
1.28vcore / 1.19vcache / 1.80vinput
Heat: 80 c under full load (running Prime95 small FFT for 20 hours)

4.3 core / 4.1 cache required volts
1.32vcore / 1.19vcache / 1.80vinput
Heat: 84 c under full load (running Prime95 small FFT for 12 hours fo far)

I don't think I will ever make it to 4.4. 🙁

In case anyone is wondering, I am using an Asrock z87 Extreme4 motherboard.

.

Same here I am trying so many setting but get a blue screen on prime95 when trying to get it at 4.4Ghz

 

[DeltaRecon2552]

Dropping your Cache multiplier more than 0.3 ghz lower than your Core multiplier will impact your speed by quite a margin. It doesn't hurt your stability if your already stable at that Vcore and Core multiplier. All you will need to do is bump the Cache voltage. Upping the cache will help a lot if you have a cruddy chip.

 

[Niccko]

Some extra's. Some bios' will add in a little offset voltage for both the CPU and Cache. Mine was .8 for the CPU and .4 for the Cache. If that happens put the lowest setting you can. Not "Auto" but .01 for each. My ASRock board did but i don't know if yours will. Any questions please post in here and i will answer. [/quotemsg]

MINE DOES THIS, first thread i've found about it.

no matter what OC i am on, and what my voltage is, i have .8 increase in cpu voltage and .4 increase in cache voltage even when on override mode.
so for example i set 4.5ghz at cpu volt. 1.280, during stresstest it will show 1.288, etc.. etc..

What do you mean by 'if that happens put the lowest setting you can' ? do you mean i have to adjust the cpu offset voltage? it is on auto i think, i have never touched it.

thanks in advance, great guide btw.

Thought my chip sucked but now i got it stable @ 4.5Ghz - 1.290Vcore - 1.190Vring.

i5 4670K
MSI Z87-G43

Enermax ETS-T40 Cpu Cooler, THIS THING IS A BEAST AND ONLY 30$ STRONGLY RECOMMENDED!!

Better than the supposed king of aircoolers the Hyper 212 Evo, it keeps my chip at 4.5ghz under 70degrees at 1700RPM quiet as a mouse, with 500rpm to spare.

I dont even have it delidded😉

i5 4670K
MSI Z87-G43

 

[chargeit]

Computer wouldn't even post. Time to rest the bios at the board.

 

[D3AD_PIX3L]

D3AD_PIX3L, why are you pushing cache multiplier? It gives very little performance wise. But hits stability quite bad. Just leave it at 34-35 and only push CPU multiplier. When you get 4.4GHz stable on CPU, you could start pushing cache if you want.
Changing 1 variable at a time will make overclocking much easier 😉

Sorry I guess I should have mentioned that I had tested lowering my cache multiplayer to see if I could achieve 4.4. Even at 35 I couldn't get it stable. I have googled it few times, but what do you guys think about the max vcore voltage? I have it at 1.32 to get it to 4.3, wondering if going to 1.33-1.35 would be bad for the chip? Since I am already hitting 84c on Prime95 am I at my thermal limit?