Maximum Kaby Lake memory speed is 2400MHz?

[Fixadent]

Someone said that the maximum memory speed on Kably Lake processors is only 2,400MHz, and it will just downclock any faster memory to that speed?

 

[geofelt]

fake news.

 

[Dunlop0078]

No. I have seen 4000mhz+ Ram run with a kaby lake cpu. The maximum officially supported by intel memory speed is 2400mhz, the JDEC standard is 2133mhz for DDR4. So non overclocking motherboards such as the intel B and H series mobo's will be limted to 2400mhz some only 2133mhz. Most motherboards will default your ram to 2133mhz until you enable XMP in the bios which sets the memory to run at its advertised speeds.

 

[Eximo]

Running 3000Mhz myself, one click to flip it from 2133 to 3000Mhz. I could probably run it faster, but decided to just lower the voltage to help abate CPU heating.

 

[iamacow]

its actually just the opposite. the kaby Lake officially only supports 2400. Anything higher will overclock the CPU and or memory controller. I'm running an i7 7700k with 3200 ram. Runs like normal. If you do not enabled the XMP profile in the motherboard BIOS than it will run at 2133.

 

[TJ Hooker]

As @Dunlop0078 mentioned, you need an overclocking mobo (Z170/270) to run RAM at speeds greater than 2400 MHz with Kaby Lake, but other than that it works fine.

 

[Fixadent]

So just enable XMP in the bios and the memory should run at it's listed speed?

 

[Dunlop0078]

So just enable XMP in the bios and the memory should run at it's listed speed?

Assuming you have a Z170 or Z270 motherboard, yes.