Will these ram work with this MOBO?

[HalfDollar]

I am upgrading my pc and I want to ask if these ram: ADATA XPG DDR4 8GB, 3000Mhz
will work with this mobo: http://www.asrock.com/MB/AMD/A320M-HDV/index.asp#Specification
? Cause in the specifications tab it says DDR4 3200+(OC)/2933(OC)/2667/2400/2133 ECC & non-ECC, un-buffered memory.

 

[Barty1884]

Provided the board is populated with a Ryzen CPU (which is all that's available right now - the APUs are due out shortly), then you should be able to achieve the higher speeds. Some vendors are still working on BIOS revisions to get to the max rated speeds of some RAM, but I'd expect you could at least do 2800MHz, if not the full 3000MHz.

FWIW, I can't think of any real reason to opt for an A320 board, considering the A320 boards go for $50-$60 and a B350 board (allowing OCing) is $65
https://pcpartpicker.com/product/sfcMnQ/asrock-ab350m-micro-atx-am4-motherboard-ab350m

Even if you have no intention of overclocking; keeping your future options open for the sake of $5 should make a lot of sense.

 

[HalfDollar]

For example if I get a 3200 mhz RAM and a mobo only supports ram up to 2933, it will just work at max, which is 2933, right?

 

[Barty1884]

Yes, it can work at those speeds.

That's providing the memory comes with an XMP (A-XMP or whatever they call it for AMD) for that speed. If not, you'll likely have to enter the timings manually to get it to run above the JEDEC 2133MHZ standard.