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6700k Overclocking, High Voltage?

Sup Internet,

So I recently upgraded my 6600k to a 6700k because I was able to find one for a pretty decent price on ebay.  The chip works fine, no ccomplaints there, but when I started trying to overclock it I noticed that I seemed to need unusually high votages to get even as high as 4.5 of 4.6Ghz.  Specifically, I had it dialed up to 1.4v and one of my workers in P95 would still crash when running at 4.6GHz.  I've dialed it back to 4.5GHz at around 1.375, but that still seems really high to me.  Lower than that though, I get the same problem where one of my cores craps out after just a few seconds of running.  The system is stable otherwise as far as I can tell, but obviously I don't want one of my cores failing in the middle of a project.  I'm running a Gigabyte G1 Gaming 3 mobo so there I haven't been able to find any option in the bios to run at a constant voltage, a la Linus' skylake OC guide, so I'm not sure if it defaults to running in adaptive mode or whatnot...

Oddly enough, when I tried to OC my 6600k I had the same issue as well, one core would just seemingly crap out and the p95 would kill the associated worker.  With that in mind, I'm wondering if I'm just doing something wrong when I tweak the voltage in the BIOS...Any thoughts?  

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

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First of all... play with LLC (load line calibration) to get better stability on lower voltages.

Higher value = less voltage droop (which is what you want).

Don't worry to set LLC to is highest value right away. You can then try lower values to try what keeps you stable.

 

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What are your temps like? I find stability to degrade beyond about 80C or so. I had systems that were 24/7 Prime95 stable over winter, and they started generating errors when it warmed up. For that reason when running these types of loads I back off the clock and voltage to moderate power thus temperature.

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Ok, I haven't messed with LLC before, what's a safe range I should start out with?

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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1 minute ago, porina said:

What are your temps like? I find stability to degrade beyond about 80C or so. I had systems that were 24/7 Prime95 stable over winter, and they started generating errors when it warmed up. For that reason when running these types of loads I back off the clock and voltage to moderate power thus temperature.

My temps are fine.  Even when I run short ftt, or whatever the super high temp one is in p95, I only ever hit around 70-75.  The "Blend" preset usually gets around mid to high 60s, usual load temps average about 5-10 degrees below that.  360 rad hype.

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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Prime95 is a bit overkill imo, try something like Asus realbench instead.

 

On topic, it seems like you lost the lottery as badly as me :/. I need around 1.4v to get 4.6 ghz though 4.5 is doable with 1.3

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23 minutes ago, PhysicalVocalist said:

Ok, I haven't messed with LLC before, what's a safe range I should start out with?

Anything is safe really. Try the max first.

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59 minutes ago, DocSwag said:

Prime95 is a bit overkill imo, try something like Asus realbench instead.

 

On topic, it seems like you lost the lottery as badly as me :/. I need around 1.4v to get 4.6 ghz though 4.5 is doable with 1.3

I was hoping that wasn't the answer, but I had definitely seen people talking about getting 4.6 or even 4.7 with only like 1.325 and I was jealous.  I have one other chip I can test, but I honestly think that one might be a 7700k...The text on the IHS is super faded and there's a couple surface scratches so it's hard to make out, but I can clearly see "Core i7" and what appears to be 4.2GHz on it.  So maybe I lost the silicon lottery, but won the "messed up ebay item" lottery? lol

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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3 hours ago, PhysicalVocalist said:

I was hoping that wasn't the answer, but I had definitely seen people talking about getting 4.6 or even 4.7 with only like 1.325 and I was jealous.  I have one other chip I can test, but I honestly think that one might be a 7700k...The text on the IHS is super faded and there's a couple surface scratches so it's hard to make out, but I can clearly see "Core i7" and what appears to be 4.2GHz on it.  So maybe I lost the silicon lottery, but won the "messed up ebay item" lottery? lol

Yeah you probably just lost it like me.

 

Perhaps the 6700k you got was one of the earlier ones. I've heard the ones from early on during the 6700k's release don't oc as well as later ones (I got mine around a month after release).

 

I guess you probably have a 7700k then xD 

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38 minutes ago, DocSwag said:

 

 

I guess you probably have a 7700k then xD 

I'll post a photo when I get off work, it's really illegible and the only way I'll know for certain is to slap it into my motherboard and see if it posts since I'm still using a Z170 board.

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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28 minutes ago, PhysicalVocalist said:

I'll post a photo when I get off work, it's really illegible and the only way I'll know for certain is to slap it into my motherboard and see if it posts since I'm still using a Z170 board.

Just update bios on your board :P 

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Laptop (I use it for school):

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And if you're curious (or a stalker) I have a Just Black Pixel 2 XL 64gb

 

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Just now, DocSwag said:

Just update bios on your board :P 

NGL...I've always been nervous about updating my bios.  No reason, never bricked a system, it just worries me a little that I'm gonna screw something up.  
I really should though, that way I can find out for sure what kind of chip the other one is.  Maybe that'll be a weekend project for me.

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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15 minutes ago, PhysicalVocalist said:

NGL...I've always been nervous about updating my bios.  No reason, never bricked a system, it just worries me a little that I'm gonna screw something up.  
I really should though, that way I can find out for sure what kind of chip the other one is.  Maybe that'll be a weekend project for me.

You honestly shouldn't care. Why? Because your mobo has dual bios. So basically if, on the off chance you manage to screw up your bios update you still have a bios chip on the mobo with a not screwed up bios. I believe that if you try to boot up your pc and you have a screwed up bios the board will automatically replace the screwed up bios with the original correct one.

 

So basically it's pretty hard to brick your board.

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Buy whatever product is best for you, not what product is "best" for the market.

 

Interested in computer architecture? Still in middle or high school? P.M. me!

 

I love computer hardware and feel free to ask me anything about that (or phones). I especially like SSDs. But please do not ask me anything about Networking, programming, command line stuff, or any relatively hard software stuff. I know next to nothing about that.

 

Compooters:

Spoiler

Desktop:

Spoiler

CPU: i7 6700k, CPU Cooler: be quiet! Dark Rock Pro 3, Motherboard: MSI Z170a KRAIT GAMING, RAM: G.Skill Ripjaws 4 Series 4x4gb DDR4-2666 MHz, Storage: SanDisk SSD Plus 240gb + OCZ Vertex 180 480 GB + Western Digital Caviar Blue 1 TB 7200 RPM, Video Card: EVGA GTX 970 SSC, Case: Fractal Design Define S, Power Supply: Seasonic Focus+ Gold 650w Yay, Keyboard: Logitech G710+, Mouse: Logitech G502 Proteus Spectrum, Headphones: B&O H9i, Monitor: LG 29um67 (2560x1080 75hz freesync)

Home Server:

Spoiler

CPU: Pentium G4400, CPU Cooler: Stock, Motherboard: MSI h110l Pro Mini AC, RAM: Hyper X Fury DDR4 1x8gb 2133 MHz, Storage: PNY CS1311 120gb SSD + two Segate 4tb HDDs in RAID 1, Video Card: Does Intel Integrated Graphics count?, Case: Fractal Design Node 304, Power Supply: Seasonic 360w 80+ Gold, Keyboard+Mouse+Monitor: Does it matter?

Laptop (I use it for school):

Spoiler

Surface book 2 13" with an i7 8650u, 8gb RAM, 256 GB storage, and a GTX 1050

And if you're curious (or a stalker) I have a Just Black Pixel 2 XL 64gb

 

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I...did not know that.  Sweet!  Thanks for the tip my dude, might have to try that tonight then.

Just now, DocSwag said:

You honestly shouldn't care. Why? Because your mobo has dual bios. So basically if, on the off chance you manage to screw up your bios update you still have a bios chip on the mobo with a not screwed up bios. I believe that if you try to boot up your pc and you have a screwed up bios the board will automatically replace the screwed up bios with the original correct one.

 

So basically it's pretty hard to brick your board.

 

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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IT WAS A 7700K

nice

7700k.PNG

I7-7700k

ASRock Z270 Taichi

MSI GTX 1070 Gaming Z

G.SKILL Ripjaws V Series 16GB DDR4 3200MHz

Thermaltake Core P3

Swiftech H320 x2

 

Long time gamer, first time builder

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