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ProKoN

Intel Haswell 4670k + 4770K Overclocking guide

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i.e, XTU reports 1.245vcore, m/m shows actual of 1.263/1.265 (+\-.002v). The difference in .02v right now is nothing to worry about but i'm curious to see if this scales with regards to an increase in vcore. Something to keep an eye one when chasing the upper limits i think.


Mainboard MSI Z87 mPower CPU 4770K @ 5.0GHz Cpu Cooler Custom water loop RAM G.Skill TridentX 2x8GB @ 2400MHz  HDD Samsung 840 Pro 512GB SSD GPU MSI 780 GTX OC SLI PSU Corsair AX860i  Case Silverstone FT02

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Posted · Original PosterOP

Hello .. First of all I wanted to thank you for the excellent guide.

:) I need some help ..

I finished part 1

I am currently looking for

Part 2: CPU Bus Ring Stability

My CPU did not like 1-1 (or as close as possible)

I'm currently trying out the X40 Cpu Ring Bus now...  for 8hrs.

 

My question is ? How Much can go down and how It effective?

Normaly is X39.

 

I have to say i run

Vcore 1.2V stability at cpu multiplier X44

8hrs stable with part 1 guide.

max temp was 80 thet cool!

 

More questions ..

VCCIN was at 2.0V TEST

You said once you start in the 1-1 calibration .. The VCCIN put on 1.9V

So that's what I did.

It did not work stable at 1-1

VCCIN 1.9V

VCCIN 2.0

Is it worth checking at 1-1 if the VCCIN can affect stability if I get close to V2.1 VCCIN?

 

Hope I was clear and sorry for the English Google Translator

Thanks again clearest guide I found MSI's Z87 motherboards

 

i got:

msi gd67 z87 gaming .

i7 4770k

2X4 8GB Gskill ripjaws 1600.

 

 

I would like to thank you ( and everyone else) for the feedback.

 

You can try this to try and find best ring bus results. It is the approach I decided to try with the 4670k. Basically start by maxing out vrin and piv voltages, find the best ring ratio, then begin to reduce voltages.

 

set

 

VCCIN -2.2V

 

ring voltage - 1.4V

 

start at a 4400MHz ring bus and start working your way down 43x 44x 42x 41x etc... until you get stable for 8 hours.

 

after you find stability start working on reducing your PIV and ring voltage as low as possible.

 

 

You dont want to reduce the ring bus too low. sure you can go lower than 39x but your performance\ watt ratio will suffer as a result. so its best to try and get it as close as possible to a 1:1 ratio. 

 

usually your ring frequency will be 100-300MHz lower than your core frequency but I can only verify that this is the case when I push the CPU past 4.5-4.6GHz. at 4.4GHz I was able to run at a 1:1 ratio. but that was what my 4770k achieved. your results will vary.. you just need to test..test..test


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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Posted · Original PosterOP

let me know what works best for you guys in order to find ring bus stablity

 

a- starting with max voltages , find ring stability, then lower voltages

 

b- starting with more conservative voltages  (vrin and piv) and working your way up until you hit max voltages.


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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I think working up the way is more suitable as it'll take a lot less time. If voltage is set high then it'll take more time to get down to instability and more of as temptation to take bigger jumps. By increasing as you go fail's will reduce time to test and give you an idea where it's heading.


Mainboard MSI Z87 mPower CPU 4770K @ 5.0GHz Cpu Cooler Custom water loop RAM G.Skill TridentX 2x8GB @ 2400MHz  HDD Samsung 840 Pro 512GB SSD GPU MSI 780 GTX OC SLI PSU Corsair AX860i  Case Silverstone FT02

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update

i set

VCCIN -2.2V

ring voltage - 1.4V

 

on 1-1 i keep get blue screen

on 43,42,41,40 even 39...

 

back to auto Settings on ring voltage

and VCCIN on 2v

What do you suggest? I run two hours testing everything again been stable.
This has been a TEST 8 hours.
ring voltage drops the OC ....

 

and i find some youtube post:

soullessone21 - sponsored by msi and corsair.

https://www.youtube.com/watch?v=MSSg0gAR19o

he Recommend on my gd 65 z87 gaming board,

cpu core voltage mode on override mod - He says adaptive does not work well with MSI

and cpu core voltage offset mod on + mod

 

and on cpu options

disabled - intel c-state and adaptive thermal monitor...

 

I found another video but really did not help me ...

https://www.youtube.com/watch?v=Z4yucCk_Zrc- but this on gd45 z87 and i5..

every one ... recommend different settings

 

You suggest something else?
Thanks for the help ..

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Posted · Original PosterOP

update

i set

VCCIN -2.2V

ring voltage - 1.4V

 

on 1-1 i keep get blue screen

on 43,42,41,40 even 39...

 

back to auto Settings on ring voltage

and VCCIN on 2v

What do you suggest? I run two hours testing everything again been stable.

This has been a TEST 8 hours.

ring voltage drops the OC ....

 

and i find some youtube post:

soullessone21 - sponsored by msi and corsair.

https://www.youtube.com/watch?v=MSSg0gAR19o

he Recommend on my gd 65 z87 gaming board,

cpu core voltage mode on override mod - He says adaptive does not work well with MSI

and cpu core voltage offset mod on + mod

 

and on cpu options

disabled - intel c-state and adaptive thermal monitor...

 

I found another video but really did not help me ...

https://www.youtube.com/watch?v=Z4yucCk_Zrc- but this on gd45 z87 and i5..

every one ... recommend different settings

 

You suggest something else?

Thanks for the help ..

 

 

Try This

 

VCCIN - 2.1V

 

ring voltage 1.4V

 

I think you basically determined you are not going to be able to run a 1:1 ring ratio at 4.4GHz.

 

start at 43x and work your way down. 42x,41x,

 

PIV is a bit tricky thats why im having you try different values


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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first thought " wish i had 4 4770Ks to clock the snot outta"

 

Welcome to the forum and thanks for sharing your result!

All of your settings look fairly good . I dont know too much about asus bios but looks like you have things set up fairly good.

I think IBT is overvolting your cpu. Does it jump to 1.36V if you set your cpu to manual mode?

For most synthetic stress tests you need to set your cpu to manual mode to maintain the voltage you have selected .

XTU does NOT overvolt the cpu when stress testing.

http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-boards-software-extreme-tuning-utility.html

run the xtu stress test and see if the overvolting to 1.36V continues

 

Given your resuts I would settle for 4.6GHz with the 4500MHz ring bus and mem chips at 2400MHz. Seems to be your sweet spot. You will most likely need a significant voltage increase to get 4.7GHz stable on all cores (1.4-1.5V).

 

If you do decide to push the cpu further just find the highest frequency you can run your ram at with tighter timings.

example: 1866MHz 9-9-9-24 1T

 

You will always benefit more from a higher cpu clock than high mem speeds,but honestly I think you have a very well balanced OC at these settings

PIV 1.9

4.6GHz CPU @ 1.33V

4.5GHz ring bus @ 1.33V

2400MHz mem chips cl 10

 

I would stay away from the per\core overclocking. from my testing I score lower on every benchmark I run if I start messing with individual core frequencies. Might just be a flaw of my board. run some cinebench at 4.8\4.7 and see if it scores higher\lower than all cores at 4.7

 

Hey, thanks for your reply, much appreciated! 

Funny thing that you say per core overclocking does not seem to make a big difference / might seem slower. Same idea I got earlier when using 49-48-47-46, slower on IBT and does not seem any different otherwise. Maybe that's somewhere hidden in my UEFI still to correct, but my cpu does not like to run 49 single core enabled anyway, so I just left that.

48x needs too much voltage / too high temps, 47x I think I am around 1.375v but not entirely stable yet when including the RAM. 

For me it looks similar to your results tbh. 46x 1:1 ratio is a bit annoying to get to and probably not worth the trouble. Have the feeling my cpu does not like more than 45x for the power I am willing to feed it. That's the same for 47x core, also using 45x cache there...

 

I guess you're right, might try using 2133 RAM @ 9-11-11-28 (as per Mushkin website for the 17000 version of my RAM) with 47x core and 45x cache.

If I get that stable I just bench both versions and select the faster one ;) - 47x does sound nicer hehe (or 50x... derp)

 

Regarding the Asus UEFI, ya, still gotta figure out a lot of things, but mainly the (practical) difference bet Fully Manual mode and Manual/Auto sth - using cpu internal management or digi+ management. pfff... :)

Almost forgot, yes something is overvolting a little. But that might be the board / LLC, auto whatever. I find I can change things in AI suite and it has an effect, I think..., but sometimes changing things in IETU does not have any effect. I go mostly via UEFI anyway. Probably related to this degree of manual mode stuff from Asus... tbc 

 

Cheers


Intel 4790K @ 4.8GHz delid • Asus Maximus VI Formula • 2x8GB Mushkin DDR3 997122R, 2400 MHz, 10-12-12-28 • Sapphire R9 290X OC RED • Samsung 850 Pro 512GB • Samsung 840 Pro 256GB • Corsair AX 860i • NZXT Kraken X61 • Corsair Air 540 Black • Dell Keyboard because I don't know what to get • Logitech MX Performance • Roccat Taito Control • Logitech H800 • Lamptron FC5 v2 • Windows 8.1, Windows 10, Linux Mint • 2x 27" 1440p Eizo EV2736W

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Double Post, oops :D

 

So, I did some more fine-tuning of the UEFI (oO) and read a bit more....

Now, I changed in the Asus UEFI to Fully Manual, set the volts (they say the board does not use LLC that way, no vdroop, just what you set.....).

And some few other things, disabled iGPU, yadda yadda.

 

The main thing - I think, correct me otherwise, Intel n00b speaking - was to change the CPU System Agent Voltage (VCCSA). It was on auto at some 0.82 / 0.85 (something like that lol).

Read about it, default is supposed to be 0.925v (I think). So, I manually set that there, and that seems good now... :D Btw, didn't touch Analog / Digital I/O at all, are on auto, rest pretty much auto.

[Maybe it was also the setting Internal PLL Overvoltage to enabled...]

 

I am just running IETU while writing this, 47x core @ 1.35v core UEFI (shows as 1.376 in AI Suite III and CPU-Z ?!?!?!?!?), 45x Ring @ 1.3v, 2400 RAM @ 10-12-12-31-1T, max 84degC core 1, avg max 78degC, avg about 70degC.

If this is stable, I consider my tuning job finally done :)

I won't run IBT afterwards and just hope for the best lol.

 

Still, no clue where the extra 0.025v on the core come from. Maybe still CPU LLC, sth else. Any Asus Guru is welcome to comment ;)

 

EDIT:

- Still testing, even got some more room for lowering vcore (1.3375v now and running). Anyone can confirm that 0.925v VCCSA is ok and good to use, please?

- I am stable with 4.7GHz as mentioned above, but only with this stress I do have the temps low enough to be ok. If I run IBT / AIDA64 / prime95 it does get to hot and maybe even crash.

  Is there anything, including rendering, heavy calculations that would be the equivalent load to those high-stress tests??

  Should I worry about that the CPU is running too hot and not necessarily stable with those? 

 

Thanks ProKoN for your guide and help, cheers!


Intel 4790K @ 4.8GHz delid • Asus Maximus VI Formula • 2x8GB Mushkin DDR3 997122R, 2400 MHz, 10-12-12-28 • Sapphire R9 290X OC RED • Samsung 850 Pro 512GB • Samsung 840 Pro 256GB • Corsair AX 860i • NZXT Kraken X61 • Corsair Air 540 Black • Dell Keyboard because I don't know what to get • Logitech MX Performance • Roccat Taito Control • Logitech H800 • Lamptron FC5 v2 • Windows 8.1, Windows 10, Linux Mint • 2x 27" 1440p Eizo EV2736W

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update..
So i find my low oc on my cpu..
PIV - 1.7v
Vcore-1.175 X43
Rcore-1.110 X40
memory xmp enable
Find Full Stability Thanks to your guide and help here.

 

There is another tip? Is it worth the little OC?

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Posted · Original PosterOP

update..

So i find my low oc on my cpu..

PIV - 1.7v

Vcore-1.175 X43

Rcore-1.110 X40

memory xmp enable

Find Full Stability Thanks to your guide and help here.

 

There is another tip? Is it worth the little OC?

 I think thats a very good overclock

 

You are using slightly more than stock voltage  to gain 400MHz.

 

I think you did good!


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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XF8r3xS.jpg

 

Corsair 900D
Intel Core i7-4770k

EVGA GTX 770 SC W/ ACX Cooler x 2

ASUS MAXIMUS VI Formula

Seagate Barracuda 2TB

Corsair AXi AX1200i

Samsung 840 500GB

G. Skill ripjaw 1600 16GB

 

I've tried following this guide to the letter (new to OC'ing)

 

Even putting my 4770k at a low clock like 4.0Ghz @ 1.35v with all the other shit turned down gives me BSOD's in IETU and AIDA 64 burn tests.

 

My cooling is beyond adequate with 0 temp throttle (custom liquid loop).

 

I don't know what to do here. Is my memory possibly unstable?

It's beyond frustrating to go balls deep on a build and not be able to find stability.

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Posted · Original PosterOP

XF8r3xS.jpg

 

Corsair 900D

Intel Core i7-4770k

EVGA GTX 770 SC W/ ACX Cooler x 2

ASUS MAXIMUS VI Formula

Seagate Barracuda 2TB

Corsair AXi AX1200i

Samsung 840 500GB

G. Skill ripjaw 1600 16GB

 

I've tried following this guide to the letter (new to OC'ing)

 

Even putting my 4770k at a low clock like 4.0Ghz @ 1.35v with all the other shit turned down gives me BSOD's in IETU and AIDA 64 burn tests.

 

My cooling is beyond adequate with 0 temp throttle (custom liquid loop).

 

I don't know what to do here. Is my memory possibly unstable?

It's beyond frustrating to go balls deep on a build and not be able to find stability.

possibly a weak IMC

 

did you try overclocking with only two sticks of ram installed instead of 4?

 

did you set memory at 1333MHz 1.5V?

 

your cooling looks sufficient.

 

are you on the latest official bios?


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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possibly a weak IMC

 

did you try overclocking with only two sticks of ram installed instead of 4?

 

did you set memory at 1333MHz 1.5V?

 

your cooling looks sufficient.

 

are you on the latest official bios?

I did bring the ram to 1333 @ 1.5v

 

i did not try to OC with 2 sticks.

 

And I am on the latest official BIOS.

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btw my build is running a swiftech mcp-655 with 960mm or radiator real-estate with corsair sp120's @ 2200 rpms down the line. Cooling shouldn't be an issue.

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Posted · Original PosterOP

I did bring the ram to 1333 @ 1.5v

 

i did not try to OC with 2 sticks.

 

And I am on the latest official BIOS.

try just two sticks see if it makes any difference

 

you may have to adjust the processor analog i\o voltage to run all 4 sticks.


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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Hello guys i`m new here,

 

my system is:

 

Mobo - MSI Z87 G45 Gaming

CPU   - 4670k

DDR3 1600Mhz cl8 1.5v

ssd 120gb

hdd 1tb

GTX 570

PSU - Corsair CX750w

 

So my stable oc is:  (tested with intel extreme tuning utility 8h)

 

core multi x44

core voltage 1.280

 

cache multi x44

cache voltage 1.280

 

RAM all auto with x.m.p profile 1600Mhz 8-8-8-24, auto voltage 1.5v

 

PCU input voltage (VVCIN) 1.9 V

 

cooler h100i temps don`t go higher than 69c 64~ average

 

i can`t run system if i get cache voltage  to 1.270, 10 min and all freezes with stesstest in intel extreme tuning utility

1.)are those voltages ok?

2.) what are safe voltages for core and cache? i want to get 1:1 on 46 multi,

3.) does cache speed really impact performance so much?

 

thank you :)

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i tried doing everything @ stock settings overnight. it was stable.

i'm not really sure if that's important to know but yeah. i did it with 2 sticks of ram.

 

i just tried to let a test run while i was out doing something

 

cpu clock @ 44

cpu voltage @ 1.3v

vccin @ 1.9v (i believe in asus uefi this is eventual input voltage?)

set ram to 1333 mhz @ 1.5v

ring bus @ 44 @ 1.3v

2 sticks of ram

 

pc froze in a 30m of burn time.

i hope this is just something i'm doing wrong like an idiot and not a gutter cpu.

 

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i tried doing everything @ stock settings overnight. it was stable.

i'm not really sure if that's important to know but yeah. i did it with 2 sticks of ram.

 

i just tried to let a test run while i was out doing something

 

cpu clock @ 44

cpu voltage @ 1.3v

vccin @ 1.9v (i believe in asus uefi this is eventual input voltage?)

set ram to 1333 mhz @ 1.5v

ring bus @ 44 @ 1.3v

2 sticks of ram

 

pc froze in a 30m of burn time.

i hope this is just something i'm doing wrong like an idiot and not a gutter cpu.

set ram clock manually and make ram voltage 1.55 it helped for my stability

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i did set it manually to 1.5v and 1333 mhz.

is there some special way to do it that i'm unaware of?

the drop down menu with the different mhz settings isn't considered manual?

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Posted · Original PosterOP

Hello guys i`m new here,

 

my system is:

 

Mobo - MSI Z87 G45 Gaming

CPU   - 4670k

DDR3 1600Mhz cl8 1.5v

ssd 120gb

hdd 1tb

GTX 570

PSU - Corsair CX750w

 

So my stable oc is:  (tested with intel extreme tuning utility 8h)

 

core multi x44

core voltage 1.280

 

cache multi x44

cache voltage 1.280

 

RAM all auto with x.m.p profile 1600Mhz 8-8-8-24, auto voltage 1.5v

 

PCU input voltage (VVCIN) 1.9 V

 

cooler h100i temps don`t go higher than 69c 64~ average

 

i can`t run system if i get cache voltage  to 1.270, 10 min and all freezes with stesstest in intel extreme tuning utility

1.)are those voltages ok?

2.) what are safe voltages for core and cache? i want to get 1:1 on 46 multi,

3.) does cache speed really impact performance so much?

 

thank you :)

 

1- your voltages are very acceptable well done.

 

2.  safe vCore 1.5V or lower

    

     safe cache voltage 1.45V or lower

 

3. cache speed does impact performance. your always best off if you can run at a 1:1 ratio and you will maximize your performance\watt but dont obsess over a 1:1 ratio. cpu frequency is still king


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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Posted · Original PosterOP

i did set it manually to 1.5v and 1333 mhz.

is there some special way to do it that i'm unaware of?

the drop down menu with the different mhz settings isn't considered manual?

you still having issues?

 

how many sticks of ram are in there?

 

try to bump up you PIV to 2.2V ( bring it down later)


Mainboard Asrock Z170 OCF CPU 6700k RAM Tridentz 3600 HDD Intel 730 240gb GPU GTX 780ti sc acx PSU Silverstone Strider 1200W  Case Antec 900 Laptop Lenovo Thinkpad T520 build log-   http://linustechtips.com/main/topic/35809-antec-900-the-re-birth-of-a-legend/ Check out the Tech Center https://www.youtube.com/user/prokon24/videos LTT's Unicore King

 

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Great work, mate. Tkanks for helping newbs out


 AMD FX 8350, ASUS GTX 770 DirectCUII, ASUS SABERTOOTH 990FX R2.0, CORSAIR TX 750, CORSAIR VEANGENCE BLACK 8GB'S 1600Mhz, Hyper 212 evo, Aerocool Strike-X GT, Crucial M4 128GB SSD, Seagate Baracuda 2TB, Asus CrapReader 

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