Question 3333 Ddr4 ram only shows 2400Mhz

[RodTirano]

I made a new build:

Motherboard Asus tuf B450m Pro Gaming
Ryzen 7 2700
32GB DDR4 Ram, 3333Mhz, Kingston, HyperX Predator cl16.

The B450m pro gaming is advertised as allowing OC up to 4000Mhz im RAM. The sticks are new, bought together. IT shows in the Asus Bios as 2400Mhz, and I can only go up to 2800Mhz, above that it becomes unstable.

Can anyone help a newbie, with this ram nightmare? Thanks in advance.

 

[WildCard999]

Which slots are the memory in?

They need to be in slots A2/B2 and DOCP (ASUS version of XMP) needs to be enabled in the BIOS. This, at the very least, should run the memory at 3200 as 3333mhz isn't supported (either 3200 or 3466).

 

[alexoiu]

I made a new build:

Motherboard Asus tuf B450m Pro Gaming
Ryzen 7 2700
32GB DDR4 Ram, 3333Mhz, Kingston, HyperX Predator cl16.

The B450m pro gaming is advertised as allowing OC up to 4000Mhz im RAM. The sticks are new, bought together. IT shows in the Asus Bios as 2400Mhz, and I can only go up to 2800Mhz, above that it becomes unstable.

Can anyone help a newbie, with this ram nightmare? Thanks in advance.

So many posts related to memory issues on Ryzen. I suggest running the memory at 2800.

 

[Zizo007]

I made a new build:

Motherboard Asus tuf B450m Pro Gaming
Ryzen 7 2700
32GB DDR4 Ram, 3333Mhz, Kingston, HyperX Predator cl16.

The B450m pro gaming is advertised as allowing OC up to 4000Mhz im RAM. The sticks are new, bought together. IT shows in the Asus Bios as 2400Mhz, and I can only go up to 2800Mhz, above that it becomes unstable.

Can anyone help a newbie, with this ram nightmare? Thanks in advance.

Are you running 2 or 4 sticks of RAM?
Two sticks 3200 should work. I have 3400 with Ryzen 1800X.

4 sticks 2800 is normal.

 

[RodTirano]

Thanks for the help. They are 2 sticks of ram, dual ranked. I paid more for the 3333Mhz, and in AMD pdf, states that the memories are compatible. I was hoping to get the 3333Mhz. If I choose DOPC in the motherboards bios, I get automatically, a profile with 3333 and the right latencies, which I didn't put in manually, but then it shows it is running at 2400Mhz, even under that 3333Mhz profile. And with cpuz I confirmed it is running as indicated, with 2400Mhz. It I take the auto option, and insert more than 2800Mhz, it crashes. 2800 is the first level of OC and the only one stable. The motherboard is advertised as capable of OC all the way up to 4000Mhz.

Any ideas of something I can try, should I contact support for the memories or motherboard, any configuration or is this normal and I can only get 2800? Again, thank you.

 

[RodTirano]

Which slots are the memory in?

They need to be in slots A2/B2 and DOCP (ASUS version of XMP) needs to be enabled in the BIOS. This, at the very least, should run the memory at 3200 as 3333mhz isn't supported (either 3200 or 3466).

I think I got that right, Ifollowed the manual, A2/B2, indicated as the grey slots. In DOPC it shows 3333Mhz.. as I said, in auto, it is only running at 2400Mhz even under 3333Mhz DOPC profile. If change manually it crashes anbove 28000Mhz. Could I be missing anything in the Bios configuration? Any ideas? Something I might try?Thanks

 

[RodTirano]

Are you running 2 or 4 sticks of RAM?
Two sticks 3200 should work. I have 3400 with Ryzen 1800X.

4 sticks 2800 is normal.

2 Sticks! You've done the DOPC profile in Bios? The Bios identified correctly my ram and latencies, but never changed to 2400Mhz. It I take it from auto, it allows 2800.

 

[Zizo007]

2 Sticks! You've done the DOPC profile in Bios? The Bios identified correctly my ram and latencies, but never changed to 2400Mhz. It I take it from auto, it allows 2800.

I have an ASRock with XMP and its 2x8Gb.
Is your 32Gb memory on the QVL memory list of your motherboard?

 

[WildCard999]

I think I got that right, Ifollowed the manual, A2/B2, indicated as the grey slots. In DOPC it shows 3333Mhz.. as I said, in auto, it is only running at 2400Mhz even under 3333Mhz DOPC profile. If change manually it crashes anbove 28000Mhz. Could I be missing anything in the Bios configuration? Any ideas? Something I might try?Thanks

You shouldn't have to do anything more then setting DOCP in the BIOS. You may need to update the motherboard BIOS but if you do make sure to do them in order and not skip any as that could end up bricking the motherboard.