Does Xeon E5-2620 v4 only support up to 2133 mhz ram?

[sommerjan]

I've just ordered a Lenovo ThinkStation P510 with a Xeon E5-2620 v4 and 2400 mhz ram. Looking at the memory specifications for the cpu it seems that the max is 2133 mhz.

There's a few other machines build with 2620v4 and 2400 mhz ram and a reseller of the cpu specifies that it supports 2400 mhz: "Faster maximum memory speeds than the previous generation (DDR4 2400 MHz versus 2133 MHz)."

Does Xeon E5-2620 v4 support up to 2133 or 2400 mhz ram?

 

[Ecky]

Setting memory faster than the CPU's specification has to do with the chipset in most cases. I'm not very familiar with C-series chipsets, but if it allows you to manually select your memory frequency, and allows frequencies about 2133, it would be fine to use it at 2400mhz.

 

[sommerjan]

But if the cpu doesn't support 2400 mhz, wouldn't the frequency get downclocked to 2133 mhz no matter what I manually set?

 

[Ecky]

My experience with desktop and enthusiast 2011v3 CPUs suggests not. My i5 3570K for instance only officially supports 1600mhz RAM, but with a "Z" chipset I can run any RAM I want.

 

[marko55]

Max is 2133 based on the chip's memory controller. If you put it on a server mobo then expect 2133 no matter what the OC spec of the ram you buy says. If you put it on a workstation board however, like a current model ASrock board, the X99 chipset of that board will probably OC the ram for you to the memory's spec regardless of using a xeon cpu or i7. Xeons are fully supported on those boards.