Will RAM over DDR4-2133 work on locked Skylake CPU?

Sparktown

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Jan 28, 2015
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I have a locked Skylake i5-6500 for a first-time build and I'm trying to figure out if the i5-6500 can effectively use DDR4 RAM over 2133 if put it in a Z170 motherboard.

Intel claims the CPU is only rated for DDR4-1866/2133. Is this a hard limit set by the CPU or just what Intel has rated the CPU for? Is this Intel saying the i5-6500 is only guaranteed for speeds up to 2133mhz (but still it might go higher) or is this Intel saying it is a hard limit in the processor that only allows RAM to go up to 2133mhz?

For example, if I put the i5-6500 in a Z170 mobo with DDR4-2660 will the RAM just go up to 2133mhz, or will it automatically try to use the full 2660mhz. Will it succeed? If not, is there something I could change to allow an i5-6500 system to use over 2133mhz RAM. Would this be some how considered OCing and void the Intel warranty?

To use an analogy: If the i5-6500 is a car, is Intel saying they installed a limiter that will stop the i5-6500 from going over 2133 kilometers per hour even if I put premium DDR4-2660 gasoline in the tank?

Is Intel saying that the i5-6500 is only rated for max 2133 km/h, but if put DDR-2660 gasoline in the tank and stomp on the gas who knows how fast I might really go?

If there is a limiter, is there anyway to remove it? Would this void the warranty?

I'm overexplaining because I've gotten a lot of vague and conflicting information about this. So, please be as specific as possible in your answer. Thanks.
 
Solution
All you need to know is the MOTHERBOARD rating for maximum DDR4 speed.

My i7-3770K for example is only "rated" for 1600MHz by Intel yet my 2133MHz DDR3 works just fine.

1) Enter BIOS
2) Select XMP profile and save
3) run MEMTEST for a full pass www.memtest.org
All you need to know is the MOTHERBOARD rating for maximum DDR4 speed.

My i7-3770K for example is only "rated" for 1600MHz by Intel yet my 2133MHz DDR3 works just fine.

1) Enter BIOS
2) Select XMP profile and save
3) run MEMTEST for a full pass www.memtest.org
 
Solution
Yes, it can work in a Z170 motherboard with a locked processor. Positive verification from memory guru Tradesman1 assures us that he's using DDR4 2800 with a locked i5-6600 processor on a Z170 motherboard. What the motherboard specs indicate, should be a go.
 

Tradesman1

Legenda in Aeternum

__________________

Mine is a 6600K and currently 32GB of 3200, 2400 should be OK, with a 6500 CPU 2666 or maybe 2800 is about as high as I'd try to count on. The mobo is rather immaterial here as long as it's a Z170, true determining factor on what you can run is your CPUs MC (memory controller) and your skills with adjusting voltages and timings.