Is it possible to run 2 pairs of ram with different speed in 2 dual channel (AM4)

[Dtl1507]

Hi. I'm currently running a Ram configuration of 4x4GB Corsair Vengeance LPX DDR4 at 3000mHz and I was wondering if I can replace 2/4 modules with a pair of higher speed 2x8GB Corsair Vengeance RGB Pro DDR4 @ 3200mHz. My main concern is even will I be able to run the 2 pairs of Ram in dual channel in 2 different speed (3000 with 3000, 3200 with 3200) since AMD doesn't support quad channel anyway. 

Here's my full spec list if it can help. ASRock B450M Pro4, Ryzen 7 2700x + Wraith Prism Cooler, 4x4GB Corsair Vengeance LPX DDR4 @ 3000mHz, Thermaltake SMART 500W and Gigabyte G1 Gaming 1070 Rev 1.0

Thank you for your help.

[Tristerin]

Yes Im running 2x 3600mhz 8gb sticks from Vcolor and 2x 2133mhz 8gb sticks from Patriot one set downclocked to 2666mhz, other OCd to 2666mhz both CL18 for certain tasks Im doing atm.  However mine are staggered and I have the same board, per the manual.

[Tristerin]

May I ask what you need more than 16gb for? Im very rarely in need of this 32gb configuration I am using atm.

[Dtl1507]

5 minutes ago, Tristerin said:

May I ask what you need more than 16gb for? Im very rarely in need of this 32gb configuration I am using atm.

The main reason is probably because I found someone selling the 3200mhz kit for cheap on the marketplace so honestly this is a good opportunity to future-proof my machine a little bit for the years to come. 

Also can I ask if you have to underclock and overclock the 2 pairs to the same speed or is there a particular reason for you to do so? Thanks.

[Nineballo]

they have to be the same timing and speed i believe, so that's why they are over and underclocked.

[schwellmo92]

1 hour ago, Dtl1507 said:

The main reason is probably because I found someone selling the 3200mhz kit for cheap on the marketplace so honestly this is a good opportunity to future-proof my machine a little bit for the years to come. 

Also can I ask if you have to underclock and overclock the 2 pairs to the same speed or is there a particular reason for you to do so? Thanks.

All the RAM in the system has to run at the same speed and timings, your motherboard wont even have an option to set them individually. So you may be able to overclock your current ones up to 3200Mhz C# otherwise you'll have to slightly down-clock the new ones. You would have to make sure that each 8GB dimm is in a different channel otherwise you'll be running in flex-mode.

 

Do you actually need the extra RAM though?

[Dtl1507]

29 minutes ago, Nineballo said:

they have to be the same timing and speed i believe, so that's why they are over and underclocked.

I see. Thank you for the clarification.

1 minute ago, schwellmo92 said:

All the RAM in the system has to run at the same speed and timings, your motherboard wont even have an option to set them individually. So you may be able to overclock your current ones up to 3200Mhz C# otherwise you'll have to slightly down-clock the new ones.

Ah that's a shame. If I were to buy tht kit this is just simply going into the bios and choose 3000 in the ram speed drop down menu right?

[Nineballo]

or typing it in, but it should be relatively simple

[Dtl1507]

40 minutes ago, schwellmo92 said:

All the RAM in the system has to run at the same speed and timings, your motherboard wont even have an option to set them individually. So you may be able to overclock your current ones up to 3200Mhz C# otherwise you'll have to slightly down-clock the new ones. You would have to make sure that each 8GB dimm is in a different channel otherwise you'll be running in flex-mode.

 

Do you actually need the extra RAM though?

To be honest probably not, just the price of 80 canadian pesos for a brand new kit of rgb rams is really tempting to me haha. Thank you so much for the explanation.

4 minutes ago, Nineballo said:

or typing it in, but it should be relatively simple

Thank you for the help. Really appreciate it.