Corsair Ram not running at full speed

[robarowe87]

Build:
ASRock x470 master sli/ac
AMD Ryzen 7 2700
Corsair Vengance LPX DDR4 2666 16gb (single dim)
Zotac GTX 1070i 8gb


Heres the issue - I have tried just about everything I can find but I cannot get my ram to run faster than 2133. Timing is correct, XMP is enabled, pretty sure I am in the right slot... nothing I do seems to work.

Someone told me that not all RAM is optimized for AMD, so I went to the product page

https://www.google.com/url?q=https://www.newegg.com/Product/Product.aspx?Item%3DN82E16820233943&sa=D&source=hangouts&ust=1536899230174000&usg=AFQjCNG1W9mMYLHSET7wYeCh_fvfdc34LA)

and in the overview it says that it is optimized for Intel.

Could this be my problem? Does anyone have anything I can try. If I need to return this ram I need to do it within the next two weeks or I will be out of date for the return policy.

Thanks!

 

[dederedmi5plus]

update latest BIOS, where you see that 2133? BIOS or system info tool?

 

[robarowe87]

Both. I have 5 or 6 different pieces of software and they all come back saying the same thing. Running at 2131.

I updated the BIOS first thing. When I try again, it says that it is up to date.

Is there any chance this ram just doesnt work well with AMD?

 

[dederedmi5plus]

could be corsair guys mislabeled 2666 with 2133 or the shop guys changed the heat spreader, can you name the part number?
should shows like CMK ... 16GX ... 4M2A ... 2666 ... C16 ... ver 5.29, if yours is that number then that particular hynix chip is the most troubled module, consider return it and replace with other than that.

 

[robarowe87]

could be corsair guys mislabeled 2666 with 2133 or the shop guys changed the heat spreader, can you name the part number?
should shows like CMK ... 16GX ... 4M2A ... 2666 ... C16 ... ver 5.29, if yours is that number then that particular hynix chip is the most troubled module, consider return it and replace with other than that.

I will take a look at that tonight!

 

[robarowe87]

could be corsair guys mislabeled 2666 with 2133 or the shop guys changed the heat spreader, can you name the part number?
should shows like CMK ... 16GX ... 4M2A ... 2666 ... C16 ... ver 5.29, if yours is that number then that particular hynix chip is the most troubled module, consider return it and replace with other than that.

part number - CMK16GX4M1A2666C16

Any further words of wisdom? I think I may just send it back and go grab something else from Fry's

 

[dederedmi5plus]

ok, some wisdom, this is call AMD Generic Encapsulated System Architecture” (AGESA) , contain list of pinnacle ridge (Ryzen 2000) QVL devices, since CPU doesn't have read-only memory chip, AGESA is stored on motherboard's BIOS chip, regarding why some RAM on certain motherboard couldn't run by its vendor serial presence detect (SPD) speed and timing probably fully depend on specific Ryzen model, I'd read Asrock X470 SLI/AC (should it is your chosen) QVL from it website (for those who seek optimum performance).

Anyway, only few applications could benefit from higher RAM speed, if you do little research, some high DDR4 (DDR4 4000 and higher) is a DDR4 2133 factory OC'd to DDR4 4000 or higher, AGESA make sure Ryzen operate that factory OC'd RAM, the problem is, AMD needs to test new devices and tally each device to their CPU line up.