Confused about my Ram XMP - seems to not work

Skankie · 19 Feb 2020 at 09:52

Hi Guys,

Posting this on behalf of my German friend, so sorry about some of the linked pictures being in Deutsch, but you know what you're looking at anyway.

Images to reference - https://imgur.com/a/y5t3Hn2

He bought Patriot Viper 3200MHz 2x8 Gb as an upgrade from 1 single stick of 8gb Crucial ram.

He is using a MSI B350 PRO-VDH AM4 with a Ryzen 5 1400.

I'm far from the source of all knowledge when it comes to computers, but compared to me he has no clue. So I told him how to enable his XMP in his bios, which he did. The motherboard even confirms these changes by stating 'DDR Speed 3200' at the top. (See 2 images linked at top)

However when he boots into Windows, task manager says 'Memory Speed: 1600'. I wasn't too concerned about this, because obviously DDR means double data, and 1600 x 2 is 3200. Although I still found this strange, because in task manager on my computer it actually states 'Speed: 3200'. (See image linked at top)

Finally, I asked him to open is Command Prompt to check his memory speeds, and this reads: 'DIMM 1 1067, DIMM 1 1067'. Again, in my command prompt it shows me 3200, 3200.

If anyone could explain to us why this isn't working that would be amazing.

Thanks!

Skankie · 19 Feb 2020 at 10:37

It has been brought to my attention that the command he typed was not the one I told him to. It's possible that the command he used could be just asking the DIMMs about their specifications and not their current state.

So I guess I will get him to run some more checks such as CPU-Z and using the correct command prompt of: wmic memorychip get speed

orbitalwalsh · 19 Feb 2020 at 10:42

3200HZ might be a push to far ..

SonicSW20 · 19 Feb 2020 at 10:42

Edit: sorry, misread OP.

Skankie · 19 Feb 2020 at 10:42

orbitalwalsh said:
3200HZ might be a push to far ..

Thanks for the reply. Is this due to the mobo or the cpu or both?

Skankie · 19 Feb 2020 at 10:43

SonicSW20 said:
DDR = double data rate, so so a clock speed of 1600MHz means your RAM is running at 3200MHz because it "clocks" twice per cycle.

Hi, Yes I understood that. I was mainly confused at the command prompt speeds that were reported. As on my system they displayed correctly at 3200, 3200

PiKe · 19 Feb 2020 at 10:45

Early gen ryzen has issues with running at high memory speeds, you may have more luck running it at 2667

SonicSW20 · 19 Feb 2020 at 10:47

Its more than likely the command prompt information is incorrect. If it was reverting to 2133MHz then the machine would loop a few times at boot before reverting to the base value, and if you return to BIOS after getting to Windows, the BIOS would also state 2133Mhz.

Skankie · 19 Feb 2020 at 10:47

PiKe said:
Early gen ryzen has issues with running at high memory speeds, you may have more luck running it at 2667

That's a good idea, I will get him to try this if CPU-Z shows something strange too when I get him to check that. Thanks

KungFuSpaghetti · 19 Feb 2020 at 21:19

What does ryzen master or hwinfo64 show?