INTEL Overclocking Advice

[Enterprise24]

1 Vcore and LLC for core and uncore OC. Sometimes at high clock like 5Ghz+ may need to change VCCPLL as well.
VCCIO VCCSA VDIMM for mem OC.

2 Intel recommend not exceeding 1.52V but that doesn't count on LLC since it is not part of Intel spec. But according to vendors that sell pre binned CPU such as Caseking and der8auer , 8 Packs from OCUK , Siliconlottery most of them suggest 1.42V (including LLC) as a safe value.

3 ASUS recommend Adaptive voltage. See KBL overclocking guide that someone give to you a few days ago. ASRock don't have this option so I just use offset instead.

4 Considered it as a bonus since it share voltage the same rail as VCore. Easy translate = set core and VCore first if it stable then raise uncore until whatever value that is stable.

5 I dunno but I will give you an example. If CPU have lifespan of 10 years and OC decrease life 3 years then you still have 7 years to play with. At that time the CPU will become obsolete and you may want to change anyways.

Another suggestion is try to looks for WHEA or CPU L0 errors in HWInfo64. You need to keep this value at ZERO while overclocking.

 

[Januka.OC]

so it's 1.392v-1.424v. Nothing too much out of the ordinary. Mine runs at 1.296v but will jump to 1.308v-1.30v every now and then.
This happens, you may wanna go with lower llc and lower power phase control. seriously, you don't need extreme power phase control. try setting this to high and report back. then try a lower llc.

Thanks I'm testing now..
With this settings
CPU Currunt Capability 100% is the right one?
LLC 4 is middle one.
Control phase Standard.

1 Vcore and LLC for core and uncore OC. Sometimes at high clock like 5Ghz+ may need to change VCCPLL as well.

Thanks For helping...

 

[cucker tarlson]

Well it's kinda unusual to see that in percentages not in amperes, but you probably wanna keep that cpu current capability at over 100% (120% or more) and then increase power limit as well. Otherwise you might or probably will run into throttling at 5GHz. It's important. If you stress test, download intel xtu, don't actually make any changes there just observe the "power limit throttling" and "current limit throttling" indicators (bottom of the screen).

 

[Januka.OC]

Well it's kinda unusual to see that in percentages not in amperes, but you probably wanna keep that cpu current capability at over 100% (120% or more) and then increase power limit as well. Otherwise you might or probably will run into throttling at 5GHz. It's important. If you stress test, download intel xtu, don't actually make any changes there just observe the "power limit throttling" and "current limit throttling" indicators (bottom of the screen).

Ues i first use that and now i use it to monitoring. XTU don't push harder Realbench does. If Realbench pass mean it's stable. Clearly i did not win sillicon lottery. Only thing i have win is temps.
I Delied my chip. I thought i can hit 5Ghz and i did but temps higher 88c max average 78c 82c Voltage go 1.425v
So i though stop overclocking and just down clock it. I do lot of encoding so extra performance lot value for me. For gaming this processor is fine no Overclock needs.

I want to speed up my encoding so that's why i want to Overclock but this temp and voltages issue change my thoughts.

 

[cucker tarlson]

I don't mean you should use xtu for stress testing, I mean it's reliable for telling you whether you're hitting the power limit cause at 5GHz 1.42v you WILL hit it with default power limit in bios, and that has a negative impact on performance. My CPU is performing worse than stock when I hit power limit, even though it's able to maintain the OC clocks.

 

[Space Lynx]

I only changed two settings to OC my 8700k, fully stable. Vcore to 1.340, and 49 for all cores - Fixed mode. no downclocking and I never break 85 celsius, considering delidding though to bring that down to around 70 celsius

 

[Januka.OC]

I don't mean you should use xtu for stress testing, I mean it's reliable for telling you whether you're hitting the power limit cause at 5GHz 1.42v you WILL hit it with default power limit in bios, and that has a negative impact on performance. My CPU is performing worse than stock when I hit power limit, even though it's able to maintain the OC clocks.

No, i have set CPU Max power 255.50

I only changed two settings to OC my 8700k, fully stable. Vcore to 1.340, and 49 for all cores - Fixed mode. no downclocking and I never break 85 celsius, considering delidding though to bring that down to around 70 celsius

1.340 Fixed mean Manual Mode right?
What about LLC? what level do you have set?

 

[Space Lynx]

LLC I leave is whatever at default, are you referring to AVX offset? i leave that at 0. i haver had 0 crashes at 4.9ghz 1.340v, and no other settings changed at all.

 

[Januka.OC]

LLC I leave is whatever at default, are you referring to AVX offset? i leave that at 0. i haver had 0 crashes at 4.9ghz 1.340v, and no other settings changed at all.

That is good to hear bro.. You may have golden chip congrats

 

[BiggieShady]

You should also experiment with LLC one notch lower ... this will also shift your automatic VCC ranges at different loads, so you would have to tweak your voltage offset a bit to bring it back into a stable zone for a given multiplier.
Different combinations of LLC and voltage offset will produce different resulting voltage load response curves. Just don't use high LLC or greater because of the voltage spikes.

 

[Space Lynx]

You should also experiment with LLC one notch lower ... this will also shift your automatic VCC ranges at different loads, so you would have to tweak your voltage offset a bit to bring it back into a stable zone for a given multiplier.
Different combinations of LLC and voltage offset will produce different resulting voltage load response curves. Just don't use high LLC or greater because of the voltage spikes.

I haven't seen anything above 85 celsius and that includes prime 95 in-place large FFT test. for actual real world gaming, i don't break 75 celsius. im considering pushing it to 5.1 ghz with an AVX of -3, im not sure if i will or not yet lol

 

[BiggieShady]

I haven't seen anything above 85 celsius and that includes prime 95 in-place large FFT test. for actual real world gaming, i don't break 75 celsius. im considering pushing it to 5.1 ghz with an AVX of -3, im not sure if i will or not yet lol

I never get that lucky, when people were doing 4.7GHz on ivy bridge at 1.2 V, I couldn't go past 4.3 GHz at 1.35 V

 

[Januka.OC]

I never get that lucky, when people were doing 4.7GHz on ivy bridge at 1.2 V, I couldn't go past 4.3 GHz at 1.35 V

Everything happens for reason bro. It's fine. my i7 can handle 5ghz cause i checked Core ratio 4.7 to 5.2 onr by one,
I change core ratio limit only 4.7 - 5.0 is fime it will come to windows and i can strest test it without any problem. But 5.1 come to windows but when i try to stress it blue screen come so 5.1 / 5.2 failed but i think i can stable 5Ghz and i did but my settings is wrong i think that's why temp is higher.. i wish i have someone to walkthrough me for this

 

[BiggieShady]

It's fine.

It's a sweaty pig that runs AC Origins over 80 C at only 4.2GHz because it needs 1.28 V and it's not delidded

 

[Januka.OC]

It's a sweaty pig that runs AC Origins over 80 C at only 4.2GHz because it needs 1.28 V and it's not delidded

When it come to Overclock shit happens

 

[Enterprise24]

I never get that lucky, when people were doing 4.7GHz on ivy bridge at 1.2 V, I couldn't go past 4.3 GHz at 1.35 V

I got 3770K 4.5Ghz 1.12V , 5Ghz 1.35V , 5.3Ghz 1.5V can run Prime 95 / LinX but temp are big problem and 5.4Ghz SPI 32m 1.52V all cores enabled. All of this just delidded and was using 240mm AIO.

But when moving to 4770K 4.5Ghz it require nearly 1.35V and every benchmarks said that I am downgrade. XD

At least my new 8700K are able to match those golden Ivy in term of voltage. But if feels very different this time because at Ivy days everyone can hit 4.5Ghz but mine can do 5-5.4Ghz. This time everyone can do 5.0-5.4 but mine just 5.1 for 24/7 and 5.4-5.46 for benching so it is not special. Some golden 8700K can do 5.7-5.8 under normal water.

Always miss you...

 

[Januka.OC]

I got 3770K 4.5Ghz 1.12V , 5Ghz 1.35V , 5.3Ghz 1.5V can run Prime 95 / LinX but temp are big problem

Hi what vcore mode you set fot hit 5GHz 1.35v Adaptive or Manual?

Quick Question!

When CPU-Z Show **Core Voltage 1.264v**
But **HWiNFO64 Show
Core VID show 1.320v**

So what Voltage is right one? I still don't understand this Vcore and VID core i know Vcore mean core voltage,and it ia the one that gives cpu power but i don't know what is this Core VID why it show high voltage?? Explain please.

Intel SpeedStep(tm)
CPU C-states
Cfg lock

Explained this 3 options, Please

 

[Space Lynx]

If you have a MSI motherboard, I learned a neat trick with my 8700k. I just turn on Full turbo mode, leave everything else default, and change XMP to my CAS 3200 ram, reboot, and then BCLK 102.5, reboot and I get 4.8ghz 24.7 no downclocking, fully stable, and it runs ice cold, not breaking 60 celsius even in prime 95 (not delidded).

think i am going to do this 24.7 now. i love these temps for this speed. 1.340v for 4.9 ghz is the lowest voltage it will take for that speed... and temps are a slight issue but not too bad.... still not worth it... I am very very happy. cheers mates

 

[OneMoar]

you should not be running 1.4v though any 22 or 14nm chip
you will severely cut it s life span
no I don't care what SL says is safe there approach to binning is throw tones of voltage at it and sell it

 

[Januka.OC]

If you have a MSI motherboard, I learned a neat trick with my 8700k.

Wow thats awesome....

Unfortunately my motherboard is ASUS STRIX Z270F Gaming

No 5Ghz anymore. I going to 4.9Ghs cause i can stable it at 1.350v so i think it safe but MAX temp is 81c average temp 68c - 75c

Please tell me anyone what is the recommended voltage for i7 7700k 4.9Ghz
I Google it and no straight answer.. Can anyone? Tell me..

 

[dorsetknob]

There "is no Safe Recommended Voltage" apart from the one Intel State for Stock Speeds
due to the Nature of The Silicon and Overclocking what is Safe for one chip may be unsafe for another.
there are also external factors that can effect the CPU Safe Voltage
Such as cooling ambient Temp and power delivery ( mains Stability and if a UPS is Used)
Every Single Over Clock even on apparently Identical equipment can be different.

edit here is a resource for you to view/check out
http://www.overclock.net/t/1621347/kaby-lake-overclocking-guide-with-statistics

 

[basco]

you want something nobody can give you. how should i or we know how much volts your chip needs-if ya dont understand this there is no helping you-sorry
you need to learn basic overclock yourself.

do ya know your doing this for 200 300mhz--your cpu does boost to 4,500mhz

let everything on auto\only asus multicore=enabled and all turbo´s to 4,5

then try to up multi per 1x and see how high ya can go whithout upping the volts.

everybody overclocks a bit different so ya will get different advises

you are here now for 10 days and you did not even fill out your system specs?

 

[Januka.OC]

you want something nobody can give you.

Oky fine.

 

[Enterprise24]

Hi what vcore mode you set fot hit 5GHz 1.35v Adaptive or Manual?

Quick Question!

When CPU-Z Show **Core Voltage 1.264v**
But **HWiNFO64 Show
Core VID show 1.320v**

So what Voltage is right one? I still don't understand this Vcore and VID core i know Vcore mean core voltage,and it ia the one that gives cpu power but i don't know what is this Core VID why it show high voltage?? Explain please.

Intel SpeedStep(tm)
CPU C-states
Cfg lock

Explained this 3 options, Please

My board don't have adaptive so I choose offset.
VID = voltage required , VCore is what you and your motherboard give to CPU.