Will 2400Mhz work with my CPU?

[shaffyx]

I have an Asus MAXIMUS VIII HERO MOBO, my CPU is Intel I7 6700K, it says it supports DDR4 1866/2133 Mhz. What will happen if I put a 2x16GB G.Skill Ripjaws V DDR4 2400MHz in it? Will it automatically run at 2133 or will it not work?

 

[Dark Lord of Tech]

YES IT CAN EASILY run 2400.

 

[Dark Lord of Tech]

You might have to set it up in the BIOS under DRAM settings = XMP , it's easy a couple of mouse clicks.

 

[Chugalug_]

Yep, just here to confirm this! :^)

 

[shaffyx]

You might have to set it up in the BIOS under DRAM settings = XMP , it's easy a couple of mouse clicks.

But would it automatically run it at 2133? Or do I need to set that up in BIOS?

 

[Chugalug_]

Skylake motherboards natively run at 2133MHz.
You can set the RAM speed by going into your BIOS and selecting what is called your XMP profile under DRAM settings.
From here you can manually set the frequency of your RAM modules, and therefore achieve higher frequency clocks, as SR-71 Blackbird previously mentioned.
I wouldn't recommend going above the rated speed, although some people DO like to overclock their RAM beyond rated speeds, it is more trouble than it is worth for tiny performance gains.
Just so you know, the Maximus VIII Hero runs RAM at up to 3733MHz, so you're perfectly fine! 😛

 

[shaffyx]

Skylake motherboards natively run at 2133MHz.
You can set the RAM speed by going into your BIOS and selecting what is called your XMP profile.
From here you can manually set the frequency of your RAM modules, and therefore achieve higher frequency clocks.
I wouldn't recommend going above the rated speed, although some people DO like to overclock their RAM beyond rated speeds, it is more trouble than it is worth for tiny performance gains.
Just so you know, the Maximus VIII Hero runs RAM at up to 3733MHz, so you're perfectly fine! 😛

So when it says 2400 Mhz on a ram card, is that the maximum stock speed? I thought it was the minimum requirement for the stock speed.

 

[Chugalug_]

It is neither the maximum nor the minimum speed.
Okay, this is how it works, the same applies similarly to CPUs as well.
When RAM modules are made, they have a certain inconsistency to the quality of the module.
We have module A and module B.
Module A has a quality of say, grade A for example, and B has a grade of C.
Module A will be used in higher frequency RAM kits around 3000Mhz due to its higher rating, which means it will be able to hit these higher frequencies at lower thermals and voltages.
Module B on the other hand, will be used in a lower frequency kit like 2133Mhz, due to its lower quality rating, meaning it will not be able to hit the run the frequencies in a stable or consistent manner.
This is a process called binning, which involves sorting qualities, and putting them in the relevant product lines.
Your RAM kit is rated for 2400MHz, meaning it will run well and stable at that frequency.
Some like to try to reach higher clock speeds with their RAM kits by increasing the frequency they run at.
This can result in frying your RAM if you push the modules too far, and they decide to crap out, hence why I didn't recommend that you do it.
Higher frequency RAM in the case of DDR4 provides little to no benefit in gaming, with increases of 1-2% between 2133 and 2666, and virtually none above that.
Higher frequency RAM is used in rendering and editing PCs so that video can be rendered and output faster, due to the fact that it utilizes RAM better, and speed is based off a combination of raw CPU power (Hence why people get 6-8 core CPUs +) and RAM capacity and frequency.
I think that's pretty much it.
Let me know if you didn't understand anything.

 

[Dark Lord of Tech]

I STATED ABOVE IN the BIOS under DRAM settings is XMP , 2 clicks to have it run.

 

[Chugalug_]

Haha, just thought i'd give a more in depth analysis of how binning and xmp worked for future reference. 😉
Tough to know what to do in terms of BIOS when you're new.

 

[shaffyx]

I more or less understand, but my question is, when I insert the sticks, will the BIOS run it at 2133 Mhz automatically?
The only reason I'm asking this is because I received these as a gift, and I don't really care about clocking the ram beyond 2133 Mhz, I'm fine with the stock speed.

 

[shaffyx]

Skylake motherboards natively run at 2133MHz.
You can set the RAM speed by going into your BIOS and selecting what is called your XMP profile under DRAM settings.
From here you can manually set the frequency of your RAM modules, and therefore achieve higher frequency clocks, as SR-71 Blackbird previously mentioned.
I wouldn't recommend going above the rated speed, although some people DO like to overclock their RAM beyond rated speeds, it is more trouble than it is worth for tiny performance gains.
Just so you know, the Maximus VIII Hero runs RAM at up to 3733MHz, so you're perfectly fine! 😛

So that means it will run at 2133MHz automatically weather it's a 2133MHz stick or a 2400MHz stick right?

 

[Dark Lord of Tech]

To reach the higher end speed modules , you have to usually overclock , the CPU.
3000+

 

[shaffyx]

To reach the higher end speed modules , you have to usually overclock , the CPU.
3000+

I get that, but could you answer my specific question?

 

[scuzzycard]

Yes, you could leave it at 2133 if you really wanted to. There's literally no reason why you would want to do that other than following Intel's ultra-conservative specs to the letter.