Intel "Coffee Lake" Builders Thread

[dullard]

Their words. My only point was that other than stock, they run HOT, even just enabling that one bios setting that puts all cores@4.7, or a "factory" overclock and it was throttling. Other places here people said these run cool. Even at stock with an aftermarket HSF they were running 76c, which in my book is hot, none of my boxes, Xeons or otherwise get close to that temp.

That is because Intel changed the maximum operating junction temperature to 100°C starting with Kaby Lake. The maximum allowed temperature used to be in the ~60°C to ~75°C range for most processors.

67°C for the 3770K: https://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-8M-Cache-up-to-3_90-GHz

74°C for the 4790k: https://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz

64°C for 6700K: https://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz

Here is a much bigger list almost all in the ~60°C to ~75°C range: http://www.pantherproducts.co.uk/posts/cpu-maximum-temperatures/

100°C for 7700K: https://ark.intel.com/products/97128/Intel-Core-i7-7700-Processor-8M-Cache-up-to-4_20-GHz

100°C for 8700K: https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz

Note: due to the solder vs TIM, sometimes it is listed as TCase and sometimes as TJunction where the processor throttles. Hot temperatures are no longer considered to be a problem. Temperatures of 76°C are now considered normal and well within acceptable limits. The drawback being larger temperature swings destroy small soldered processors, which is probably the main reason why Intel uses TIM.

 

[Phynaz]

De-lidding is always worth it (Intel CPU). It is just me or nobody cares about low temperatures?

What reason is there to care about CPU temperature as long as it is within specifications?

 

[StinkyPinky]

Why some people are so fixated on doing "max OC"?! Why not go for 4.8 or even 4.7 GHz? 5.0 is just ~4% higher than 4.8 and the performance difference is not going to always be 4% either.

IMO that 4% is not worth the hassle of de-lidding and getting monster coolers, etc.

I have my 8700k now, although I won't get around to doing anything with it for a few days. I have an AIO water cooler so will try for 5, but would be quite happy with 4.8. I have no interest in running the CPU to its absolute voltage limit.

 

[Bouowmx]

What reason is there to care about CPU temperature as long as it is within specifications?

A warmer processor consumes more power, although the difference in power consumption of a processor at 75 and 100 C is tiny.

 

[phillyman36]

Just got my Asus Maximus X Hero. I put everything in the case i just need a darn 8700K.

 

[LTC8K6]

That is because Intel changed the maximum operating junction temperature to 100°C starting with Kaby Lake. The maximum allowed temperature used to be in the ~60°C to ~75°C range for most processors.

67°C for the 3770K: https://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-8M-Cache-up-to-3_90-GHz

74°C for the 4790k: https://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz

64°C for 6700K: https://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz

Here is a much bigger list almost all in the ~60°C to ~75°C range: http://www.pantherproducts.co.uk/posts/cpu-maximum-temperatures/

100°C for 7700K: https://ark.intel.com/products/97128/Intel-Core-i7-7700-Processor-8M-Cache-up-to-4_20-GHz

100°C for 8700K: https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz

Note: due to the solder vs TIM, sometimes it is listed as TCase and sometimes as TJunction where the processor throttles. Hot temperatures are no longer considered to be a problem. Temperatures of 76°C are now considered normal and well within acceptable limits. The drawback being larger temperature swings destroy small soldered processors, which is probably the main reason why Intel uses TIM.

That's just the difference between heat spreader temp (tcase) and die temp (tjunction).
All of those temps are in the same ballpark of die temps, I think.

https://www.intel.com/content/www/us/en/support/processors/000005597.html

 

[krumme]

Generally how fast does tim dry up and need to be reapplied?Is this something I am going to have to worry about?

No worry. The mx2 i use now is guaranteed to work 8 years. So will probably go fine for plus ten. So thats a non issue when delidding.
But imo the fmax benefit of doing so for the 8700k is extreme minor anyway. The benefit should be for the fun and the sport. You might want to consider the 8700 non k. That lessens cost of cooling and mb a great deal. Seems like a mighty fine processor to me unless you love ocing.

 

[Markfw]

That is because Intel changed the maximum operating junction temperature to 100°C starting with Kaby Lake. The maximum allowed temperature used to be in the ~60°C to ~75°C range for most processors.

67°C for the 3770K: https://ark.intel.com/products/65523/Intel-Core-i7-3770K-Processor-8M-Cache-up-to-3_90-GHz

74°C for the 4790k: https://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz

64°C for 6700K: https://ark.intel.com/products/88195/Intel-Core-i7-6700K-Processor-8M-Cache-up-to-4_20-GHz

Here is a much bigger list almost all in the ~60°C to ~75°C range: http://www.pantherproducts.co.uk/posts/cpu-maximum-temperatures/

100°C for 7700K: https://ark.intel.com/products/97128/Intel-Core-i7-7700-Processor-8M-Cache-up-to-4_20-GHz

100°C for 8700K: https://ark.intel.com/products/126684/Intel-Core-i7-8700K-Processor-12M-Cache-up-to-4_70-GHz

Note: due to the solder vs TIM, sometimes it is listed as TCase and sometimes as TJunction where the processor throttles. Hot temperatures are no longer considered to be a problem. Temperatures of 76°C are now considered normal and well within acceptable limits. The drawback being larger temperature swings destroy small soldered processors, which is probably the main reason why Intel uses TIM.

You are missing the point. Without even a 5 ghz OC, and using aftermarket cooling, the chip was throttling at "factory OC" !! That's the point. Anything past stock requires a high end cooler. Do I have to quote the text ?

 

[Arachnotronic]

You are missing the point. Without even a 5 ghz OC, and using aftermarket cooling, the chip was throttling at "factory OC" !! That's the point. Anything past stock requires a high end cooler. Do I have to quote the text ?

If you're buying an 8700K, why would you pair it with a cheap cooler?

 

[Markfw]

If you're buying an 8700K, why would you pair it with a cheap cooler?

Not saying you would. Its just that some here maintain the chip runs cool, and thats not true.. If you get an 8700k, you NEED HIGH END AFTERMARKET COOLING unless you run at stock 3.7/4.3 turbo ghz !!!

This is my only point, and its very good information for those BUILDING an 8700K system (which is the primary build of this thread I think)

 

[LTC8K6]

You are missing the point. Without even a 5 ghz OC, and using aftermarket cooling, the chip was throttling at "factory OC" !! That's the point. Anything past stock requires a high end cooler. Do I have to quote the text ?

You mean a "motherboard high voltage overclock", not a factory overclock.

And quit using cheap coolers.

 

[ozzy702]

You mean a "motherboard high voltage overclock", not a factory overclock.

And quit using cheap coolers.

Yeah... 100% of the mobos out there pushing a "motherboard overclock" are also pushing crazy high voltage way higher than necessary to run the 8700k at stock frequencies. It's no different than with the 7700k or the 6700k before it. My Asrock z170 mobo at "default" settings puts all core turbo to 4.5ghz with some really high volts.

 

[PeterScott]

You are missing the point. Without even a 5 ghz OC, and using aftermarket cooling, the chip was throttling at "factory OC" !! That's the point. Anything past stock requires a high end cooler. Do I have to quote the text ?

I am pretty sure Intel doesn't OC from the factory.

It's overclocking, plain and simple. The MCE test I saw increased performance ~10%, and power usage ~40%. It also increased voltage dramatically and crashed consistently in one use case.

If you are going to overclock, expect it to use a lot more power and a plan on improved cooling to compensate.

 

[moonbogg]

I'd be happy at 4.8 myself...probably. I mean probably, you know?

 

[Crono]

My 8700 is coming in tomorrow. I'm wondering if I should wait to get a cooler, in case the stock Intel one does an adequate job, at least for initial testing.

 

[elhefegaming]

My 8700 is coming in tomorrow. I'm wondering if I should wait to get a cooler, in case the stock Intel one does an adequate job, at least for initial testing.

Test temps at stock please

 

[ozzy702]

I'd be happy at 4.8 myself...probably. I mean probably, you know?

That's what I'm aiming for with a D14S. We'll see how that goes.

 

[TheF34RChannel]

My 8700 is coming in tomorrow. I'm wondering if I should wait to get a cooler, in case the stock Intel one does an adequate job, at least for initial testing.

Does it come with a stock cooler? Don't think it does, and even if it does you'll keep it cooler by blowing on it yourself. Get an excellent, not decent but excellent, cooler first I suggest.

Still no eta on when mine is in stock, not even on the wholesaler. Same for the Apex; they just don't know, oddly.

 

[crashtech]

.

Does it come with a stock cooler? Don't think it does, and even if it does you'll keep it cooler by blowing on it yourself. Get an excellent, not decent but excellent, cooler first I suggest.

Still no eta on when mine is in stock, not even on the wholesaler. Same for the Apex; they just don't know, oddly.

It's non-K, it comes with a cooler.

 

[LTC8K6]

.

It's non-K, it comes with a cooler.

A cooler that will be fine for stock speeds.

 

[StrangerGuy]

I am pretty sure Intel doesn't OC from the factory.

It's overclocking, plain and simple. The MCE test I saw increased performance ~10%, and power usage ~40%. It also increased voltage dramatically and crashed consistently in one use case.

If you are going to overclock, expect it to use a lot more power and a plan on improved cooling to compensate.

Auto-overclocking schemes always has sucked ass, even NV's own GPU boost on Pascal. They never attempt to find the optimum point in the frequency/voltage but instead brute forcing the clocks through tons of voltage.

Why some people are so fixated on doing "max OC"?! Why not go for 4.8 or even 4.7 GHz? 5.0 is just ~4% higher than 4.8 and the performance difference is not going to always be 4% either.

IMO that 4% is not worth the hassle of de-lidding and getting monster coolers, etc.

Because OCing has become mostly an act of ego tripping rather than sane cost-benefit analysis.

 

[Organized_Chaos]

Is it the general consensus that z370 motherboard prices will drop a little or are they probably at least close to what they would be down the line? Really tempted to go ahead with getting a Maximus X but if the price goes down a bit by the time my backorder gets fulfilled then that would be annoying.

 

[Arachnotronic]

Just cancelled my 8700K backorder. Going to stick with my X299 setup for now and maybe hop back onto mainstream with either Z390 and 8 core CFL or more likely Ice Lake and Z490. The idea of ripping & replacing boards and having to resell my board + CPU honestly made me a little queasy.

Looking forward to reading about all your CFL builds, though!

 

[Zucker2k]

Their words. My only point was that other than stock, they run HOT, even just enabling that one bios setting that puts all cores@4.7, or a "factory" overclock and it was throttling. Other places here people said these run cool. Even at stock with an aftermarket HSF they were running 76c, which in my book is hot, none of my boxes, Xeons or otherwise get close to that temp.

Do you remember when you threw a tantrum when some review sites needed relatively "high" voltages in their Threadripper review? How come you're so comfortable with this particular review you are even quoting them, albeit selectively?

Edit:

From OC3D TV: Threadripper 1950X & ROG Zenith Extreme X399 Motherboard Review

I did manage to get a 4 GHz overclock across all of the cores at 1.42 V

To settle doubts on Overclock 3D's result on AMD Ryzen TR.

and that is BS. If you check the TR builders thread, most of us are doing that at 1.2 vcore approx, nobody going over 1.4 vcore, even with custom water, so I call BS on that OC

 

[Justinbaileyman]

Just cancelled my 8700K backorder. Going to stick with my X299 setup for now and maybe hop back onto mainstream with either Z390 and 8 core CFL or more likely Ice Lake and Z490. The idea of ripping & replacing boards and having to resell my board + CPU honestly made me a little queasy.

Looking forward to reading about all your CFL builds, though!

Nooooo ,Why? your like the 3rd person to cancel. I dont want to be in a CFL Builders club by my self LOL..