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Old 04-17-2017, 10:33 PM   #1
Sir Skully
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* i7-6900K * 8 cores...

MC got a couple of these in, after reading Sandogs
mini review of the i7-6900k. I picked one up...
Installed it, oced to 4O mhz, core voltage 1.26v, temp @ idle 39/40c.
Stable with AIDA64 stress test 20/25 min..... L now all's I got a do now,
is figure out how to make use of it. $999. + tax... Can't load any pic's...
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Old 04-18-2017, 07:35 AM   #2
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Re: * i7-6900K * 8 cores...

I knew you would beat me to it, congrats Skully!

Seriously though, I believe you should have gotten the 5960X. I do not like the Broadwell-E chips with the Turbo 3.0. I would like to know your opinion on your new Broadwell-E and if you have any stability issues OCing it and running AIDA64. I am interested in your OC speed. Everyone says Broadwell-E does not OC well at least compared to Haswell-E which get around 200MHz better. I would rather have that 200MHz buffer zone and not have to deal with a driver for my CPU (Intel Turbo 3.0).

Are you running it with HT disabled?

Are you using AI Suite to OC it?

I would have bought the 5960X already but I am having a slow time selling my 6850K. I am not in a rush though. Those chips do not come cheap and even Micro Center does not have them on sale. Right now I can get the 5960X OEM for $998 or for $10 more I can get the retail box. The retail box is a no brainer. Just waiting for my 6850K to sell.
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Old 04-18-2017, 08:08 AM   #3
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Re: * i7-6900K * 8 cores...

FYI,

The newer Broadwell-E 6700K is 7 quarters newer (almost 2 yrs) than the Haswell-E 5960X.

They cost the same.

The only benefit I have studied about the Broadwell-E over the Haswell-E is Broadwell-E has 14nm die size, supports 2400MHz DDR4, and has Turbo 3.0. It is a Tick iteration (die shrink) of Haswell-E.

Turbo 3.0 does not hinder OCing I am pretty sure, it is the die size of Broadwell-E. At stock it is a very efficient and cool running CPU. When you start hitting 4.2GHz is when temps, power, and even stability get out of control IMO. If you remember what Ivy Bridge was to Sandy Bridge, that is exaclty what Broadwell-E is to Haswell-E.

As far as DDR2400MHz goes, I ran my 5930K off the same 2400MHz RAM I have now. In fact all Intel processor have not been tied to their supported memory buss for some time. ASUS QVL for the RVE10 is 3400MHz. The Haswell-E's support goes up to DDR4-2133 but you can run anything.

With the Broadwell-E, you get Intel Turbo 3.0. This is fine if you don't OC and it requires a Windows driver and software. You cannot install the driver without the software. You can disable the software but it runs in the systray. You will always have a yellow exclamation mark if no driver installed. IMO, this is useless because most OC this sort of CPU and even at stock, ASUS clocks have the CPU running at 4GHz anyway.

Also, I don't think ASUS is up to snuff on the Broadwell-E's in BIOS. DDR defaults to 2133 when OCing and not the supported DDR 2400 for my Broadwell-E and I had several crashes using AI Suite and AIDA64 benchmark which has always passed for me before.

The final kicker is the Haswell-E 8 core OC's very well. Almost everyone can do 4.5GHz reliably and I only want to do 4.3GHz. I crashed doing TPU II 4.2Ghz on one core and 4.0GHz on the rest with my current CPU.

I am just trying to be informative Skully, I hope you have success with your new 6900K and I can't wait to hear your opinion on your OC. If you do well with that processor I might still get it but I do not read good user reviews on OCing for it.

One other nit-picky thing which I mentioned before and I care about is the 5930X is the top of the line CPU for Haswell-E and designated with an X. I like that for owning an Extreme Edition CPU that it has the 'X' designation. I feel Intel gives the Extreme Edition CPU's good binning and more leg room. Like I said, this is a part of history slipping by for me and it will be the last time I will purchase a top of the line Extreme Edition CPU. I am not paying above $1K for a CPU, it is already too much money.
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Old 04-18-2017, 08:26 AM   #4
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Re: * i7-6900K * 8 cores...

Congrats Skully on the new cpu, let us know how it goes!
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Old 04-18-2017, 11:01 AM   #5
Sir Skully
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Re: * i7-6900K * 8 cores...

Thanks Sandog for the info. I just got this cpu yesterday. I've
just started to see how goes. One good thing about MC is their
30 day return. If mayhaps me liketh not the 6900K then back
it goes... Anywho I've had the 6900k @ 4.gHZ OC it ran stable.
I'm now @ 4.2 ghz oc seems stable, but haven't checked anything yet.
Will keep ya updated as I test it...

By the by Thanks Ken... I'm having fun trying to figure how goes,
with this new cpu...
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Last edited by Sir Skully; 04-19-2017 at 12:18 AM..
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Old 04-18-2017, 06:55 PM   #6
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by Sir Skully View Post
MC got a couple of these in, after reading Sandogs
mini review of the i7-6900k. I picked one up...
Installed it, oced to 4O mhz, core voltage 1.26v, temp @ idle 39/40c.
Stable with AIDA64 stress test 20/25 min..... L now all's I got a do now,
is figure out how to make use of it. $999. + tax... Can't load any pic's...

So sad to hear that you could only overclock that 6900K to 40 mhz - lol!

Yeah, Broadwell-E turned out to be a stinker. Skylake-X should best Haswell-E in overclocking and IPC. Intel pulled in the release date recently because of competition from AMD's Ryzen. It should be sometime this summer.

In related new, the 6-core Coffeelake CPU should be out end of August on Intel's mainstream enthusiast platform (Z370). Only dual channel memory, but it should overclock like a son-of-a-gun :-) It is being produced on Intel's new 14nm++ process (faster thank the 14nm+ process Kabylake uses).
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Old 04-18-2017, 08:11 PM   #7
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by XJ. View Post
So sad to hear that you could only overclock that 6900K to 40 mhz - lol!

Yeah, Broadwell-E turned out to be a stinker. Skylake-X should best Haswell-E in overclocking and IPC. Intel pulled in the release date recently because of competition from AMD's Ryzen. It should be sometime this summer.

In related new, the 6-core Coffeelake CPU should be out end of August on Intel's mainstream enthusiast platform (Z370). Only dual channel memory, but it should overclock like a son-of-a-gun :-) It is being produced on Intel's new 14nm++ process (faster thank the 14nm+ process Kabylake uses).
Hey XJ, good to read your input. I do not know anything about Skylake-E. Mainly because I have not studied it because I do not want to consider getting rid of the most expensive mobo I have ever owned. I trust what you say about Skylake OCing but I just assumed it would be like Broadwell-E. It is a 14nm CPU die also. Yes, IMO the Broadwell-E is a stinker. In fact, I was thinking to myself what was Intel thinking putting this Turbo 3.0 thing that takes the same best core (core1) and clocks it to 4.0GHz while the other 5 do 3.8GHz. Big whoop! Also, if you tax multicore, they all freaking run at 3.7GHz. I don't know why Intel would designate this as an enthusiast class CPU. Besides the dumb Turbo 3.0, the chip does not OC well at all. I have used AI Suite to OC with HT enabled I got a max 4.2GHz on 2 cores and 4.0GHz on the other 4, was not stable. With HT disabled, AI Suite got 2 cores to 4.6GHz and the rest to 4.4GHz, was not stable.

I loathe my CPU and have been since I got it a long time ago. I have been thinking about selling this thing about 3 times now. I am taking a look at the 5960X because it is only $400 more than the 5930K. I am trying to dissuade Skully because the 6900K no different than the CPU I have now except two additional cores. On the other hand, the 5960X is no different than the 5930K, it will do 4.5-4.6GHz reliably. I was being conservative before when I said the Haswell-E did 200MHz more, it is more like 400MHz when you look at reliability. I know Skully wants to OC his CPU and Broadwell-E is not made for OCing IMO.
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Old 04-18-2017, 10:28 PM   #8
Sir Skully
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by XJ. View Post
So sad to hear that you could only overclock that 6900K to 40 mhz - lol!

Yeah, Broadwell-E turned out to be a stinker. Skylake-X should best Haswell-E in overclocking and IPC. Intel pulled in the release date recently because of competition from AMD's Ryzen. It should be sometime this summer.

In related new, the 6-core Coffeelake CPU should be out end of August on Intel's mainstream enthusiast platform (Z370). Only dual channel memory, but it should overclock like a son-of-a-gun :-) It is being produced on Intel's new 14nm++ process (faster thank the 14nm+ process Kabylake uses).
Hey Ajay, I'm running now @ 4.2 ghz stable, I've had it up to 4.5 ghz not
stable, takes to much voltage/heat...
Voltage/cpu @ 1.25
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Old 04-18-2017, 11:51 PM   #9
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by Sir Skully View Post
Hey Ajay, I'm running now @ 42 mhz stable, I've had it up to 45 mhz not
stable, takes to much voltage/heat... This is all on a stock fan setting. I'll
put this puppies under water soon. Hopefully with EK water blocks.
Then I'll get down and dirty... Voltage/cpu @ 1.25
Ah, I see - good luck! I was joking because you are accidentally writing xy *mhz* instead of X.Y GHz ;-)
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Old 04-18-2017, 11:56 PM   #10
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Re: * i7-6900K * 8 cores...

I'm posting @ 45 mhz now, core voltage @ 1.5v, temps @ idle in the
40c+ range. Toms said they couldn't get into windows @ any core voltage after 43mhz...
Here I is posting @ 45mhz...
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Old 04-19-2017, 12:12 AM   #11
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by XJ. View Post
Ah, I see - good luck! I was joking because you are accidentally writing xy *mhz* instead of X.Y GHz ;-)
Yea its late, sleepy, thanks for catching that...
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Old 04-19-2017, 09:08 AM   #12
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Re: * i7-6900K * 8 cores...

Wow Sandog, that is one EXPENSIVE mobo! I can see why you don't want to change. Good luck selling your 69K. Even though I bought my 970 off you, I wouldn't spring for your Broadwell-E CPU. I really hoped I'd upgrade last year with the outgoing HSW-E, but we were hammered by unexpected home and car repairs.

The 'E' HEDT CPUs have been renamed to 'X' CPUs. Skylake-X is expected to clock at least as high as HSW-E, plus there are some signifcant improvements to the Server version of Skylake that should boost IPC even higher than normal. We now have info that Skylake-X will be released in June of this year!

Personally, I'm hoping to pick up the new CoffeeLake (6C/12T), probably next Christmas. Should be 200-300 bucks less than Intel HEDT and still get me the performance I want. If I think I really need 8 cores, I may go with Ryzen.

It's tough to justify an 8+ core Intel HEDT on a really good mobo and fast ram unless I back working in Software Engineering and making good money (though I am coming back up to speed on C++ right now and will start doing the same with Java soon).
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Old 04-19-2017, 09:15 PM   #13
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Re: * i7-6900K * 8 cores...

Skully you must not have HT enabled like I asked about in order to get to 4.5GHz. Also do you run AIDA64 benchmarks? I OC'd my system and it would appear to work fine with rebooting and all but turn it off over night and start it the next day and couldn't get into Windows.
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Old 04-19-2017, 10:33 PM   #14
Sir Skully
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Re: * i7-6900K * 8 cores...

Quote:
Originally Posted by Sandog View Post
Skully you must not have HT enabled like I asked about in order to get to 4.5GHz. Also do you run AIDA64 benchmarks? I OC'd my system and it would appear to work fine with rebooting and all but turn it off over night and start it the next day and couldn't get into Windows.
Nope HT is enabled, yep I use AIDA64 benchmarks, and to stress cpu.
I haven't noticed any problem starting up next day with oc...
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Old 04-20-2017, 07:34 AM   #15
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Re: * i7-6900K * 8 cores...

Good for you Skully, most people report an OC of around 4.2GHz but not a lot of data on that chip. Will have to look into it. Must be your good cooling system. Could have had a 5960X yesterday new for $850 but missed the auction during work. Too busy.
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