[SOLVED] RAM Compatibility

[Soortt]

Hello,

I've realized that i'm having a memory incompatibility issue. Which is causing me to have BSOD, when i stress test too. I did memtest and got 0 errors. My ram is CMK16GX4M2B3000C15 v5.29, it's compatible with my motherboard but not with CPU, which is probably why i BSOD. Not sure if version can cause for compatibility issue.
I tested 2 rams (from friends) which are: CMK16GX4M2B3200C16 & F4-3600C16D-32. Those worked fine, no bsod so far.

Question 1: I was planning to buy CMK16GX4M2B3200C16 but i saw that this one is not compatible with my motherboard (it's compatible with the CPU). But the CMK16GX4M2B3200C16"R" is compatible with both CPU and MB, and i would like to know what the difference is between this 2?

Question2: Can ram version cause for incompatibility?

Question3: What is the difference between CMK16GX4M2B3200C16 and CMK16GX4M2Z3200C16, the B3200 and Z3200. Z3200 is compatible with both my CPU and MB. Also AMD Optimized, not sure if important.

I have 3700x & msi b550 tomahawk.
This is where i checked for ram: https://www.msi.com/Motherboard/support/MAG-B550-TOMAHAWK#support-mem-19 & https://help.corsair.com/hc/en-us/a...N-2000-3000-SERIES-Memory-Compatibility-List-

I need a quick hand with which one i should buy, because i have to return my friends ram in 4 days.
Cheers

 

[mitch074]

Hello,

I've realized that i'm having a memory incompatibility issue. Which is causing me to have BSOD, when i stress test too. I did memtest and got 0 errors. My ram is CMK16GX4M2B3000C15 v5.29, it's compatible with my motherboard but not with CPU, which is probably why i BSOD. Not sure if version can cause for compatibility issue.
I tested 2 rams (from friends) which are: CMK16GX4M2B3200C16 & F4-3600C16D-32. Those worked fine, no bsod so far.

Question 1: I was planning to buy CMK16GX4M2B3200C16 but i saw that this one is not compatible with my motherboard (it's compatible with the CPU). But the CMK16GX4M2B3200C16"R" is compatible with both CPU and MB, and i would like to know what the difference is between this 2?

Question2: Can ram version cause for incompatibility?

Question3: What is the difference between CMK16GX4M2B3200C16 and CMK16GX4M2Z3200C16, the B3200 and Z3200. Z3200 is compatible with both my CPU and MB. Also AMD Optimized, not sure if important.

I have 3700x & msi b550 tomahawk.
This is where i checked for ram: https://www.msi.com/Motherboard/support/MAG-B550-TOMAHAWK#support-mem-19 & https://help.corsair.com/hc/en-us/a...N-2000-3000-SERIES-Memory-Compatibility-List-

I need a quick hand with which one i should buy, because i have to return my friends ram in 4 days.
Cheers

Try increasing the RAM voltage by 0.01V (1.36 instead of 1.35). You may also want to try running it at a lower speed (3200 instead of 3600) and see if it solves the problem. A BIOS update might help, too.

 

[Soortt]

Try increasing the RAM voltage by 0.01V (1.36 instead of 1.35). You may also want to try running it at a lower speed (3200 instead of 3600) and see if it solves the problem. A BIOS update might help, too.

Bios is already up to date, i tried all speed (max is 3000mhz) and it didn't work out. It's 100% not compatible, not even in 2133mhz JEDEC.
I actually need help which ram i should buy that is compatible with my pc.

 

[Lucio753]

Hello,

I've realized that i'm having a memory incompatibility issue. Which is causing me to have BSOD, when i stress test too. I did memtest and got 0 errors. My ram is CMK16GX4M2B3000C15 v5.29, it's compatible with my motherboard but not with CPU, which is probably why i BSOD. Not sure if version can cause for compatibility issue.
I tested 2 rams (from friends) which are: CMK16GX4M2B3200C16 & F4-3600C16D-32. Those worked fine, no bsod so far.

Question 1: I was planning to buy CMK16GX4M2B3200C16 but i saw that this one is not compatible with my motherboard (it's compatible with the CPU). But the CMK16GX4M2B3200C16"R" is compatible with both CPU and MB, and i would like to know what the difference is between this 2?

Question2: Can ram version cause for incompatibility?

Question3: What is the difference between CMK16GX4M2B3200C16 and CMK16GX4M2Z3200C16, the B3200 and Z3200. Z3200 is compatible with both my CPU and MB. Also AMD Optimized, not sure if important.

I have 3700x & msi b550 tomahawk.
This is where i checked for ram: https://www.msi.com/Motherboard/support/MAG-B550-TOMAHAWK#support-mem-19 & https://help.corsair.com/hc/en-us/a...N-2000-3000-SERIES-Memory-Compatibility-List-

I need a quick hand with which one i should buy, because i have to return my friends ram in 4 days.
Cheers

Question 1: The diference within those two memorys is that one is Red and the other one probably Black. Thats the meaning of the last letter. So probably if CMK16GX4M2B3200C16"R" is compatible with your cpu and MB, CMK16GX4M2B3200C16 this one is compatible too.
Question 2: i am not really sure but i can tell you that i was having some problems with some corsair 2 x CMK8GX4M1D3000C16. Those ones aren't in the QVL list of my motherboard and i wasn't being able to put them in 2933mhz which is the max that i cant get with my processor Ryzen 3 3200g. The problem was that i was putting the memorys in Dims A1 and B1 and that was causing crashes and erros with memtest. I couldn't even boot them at 2933mhz. When i put them in A2/ B2 dimms , what my motherboars's manual recommends i finally could boot them at 2933mhz and i am running them perfectly now. No crashes, no erros in memtest. The only thing that i had to do is reinstall windows cause it wasn't starting because it doesn't check the memory switch. Check your motherboards manual about that and give it a try, maybe thats the problem.
Question3: The diference with that B and C is something called modifier that contains the design, voltage and timings . i am not really sure if it changes alot within them. Maybe it changes the memory manufacture.

Hope this helps you. Tell us if it does

 

[Soortt]

Question 1: The diference within those two memorys is that one is Red and the other one probably Black. Thats the meaning of the last letter. So probably if CMK16GX4M2B3200C16"R" is compatible with your cpu and MB, CMK16GX4M2B3200C16 this one is compatible too.
Question 2: i am not really sure but i can tell you that i was having some problems with some corsair 2 x CMK8GX4M1D3000C16. Those ones aren't in the QVL list of my motherboard and i wasn't being able to put them in 2933mhz which is the max that i cant get with my processor Ryzen 3 3200g. The problem was that i was putting the memorys in Dims A1 and B1 and that was causing crashes and erros with memtest. I couldn't even boot them at 2933mhz. When i put them in A2/ B2 dimms , what my motherboars's manual recommends i finally could boot them at 2933mhz and i am running them perfectly now. No crashes, no erros in memtest. The only thing that i had to do is reinstall windows cause it wasn't starting because it doesn't check the memory switch. Check your motherboards manual about that and give it a try, maybe thats the problem.
Question3: The diference with that B and C is something called modifier that contains the design, voltage and timings . i am not really sure if it changes alot within them. Maybe it changes the memory manufacture.

Hope this helps you. Tell us if it does

Thank you for answering.
I couldn't boot with XMP or manual OC too. Which tells more than enough that it isn't compatible. Well i did put them on A2&B2 dimms so i'm definitelly not doing something wrong there. I really did allot of steps to try to fix it but it didn't work out for me. It's a 4 year old ram anyway, i'll sell it and buy the CMK16GX4M2B3200C16.
If the R just stands for Red than i will just buy the black one (CMK16GX4M2B3200C16 ). It's funny that the red one is listed on my mb al compatible and black one not.

 

[Lucio753]

Thank you for answering.
I couldn't boot with XMP or manual OC too. Which tells more than enough that it isn't compatible. Well i did put them on A2&B2 dimms so i'm definitelly not doing something wrong there. I really did allot of steps to try to fix it but it didn't work out for me. It's a 4 year old ram anyway, i'll sell it and buy the CMK16GX4M2B3200C16.
If the R just stands for Red than i will just buy the black one (CMK16GX4M2B3200C16 ). It's funny that the red one is listed on my mb al compatible and black one not.

Qvl list only tells you what memorys were tested and worked well at the manufacture specification. There are alot of memorys that aren't in the qvl that also work well but i think always it's better buying one that is listed in the qvl list. Good luck with those memorys.

 

[mitch074]

Thank you for answering.
I couldn't boot with XMP or manual OC too. Which tells more than enough that it isn't compatible. Well i did put them on A2&B2 dimms so i'm definitelly not doing something wrong there. I really did allot of steps to try to fix it but it didn't work out for me. It's a 4 year old ram anyway, i'll sell it and buy the CMK16GX4M2B3200C16.
If the R just stands for Red than i will just buy the black one (CMK16GX4M2B3200C16 ). It's funny that the red one is listed on my mb al compatible and black one not.

Most probable is because they are, indeed, otherwise completely identical - asking a mobo maker to test all RAM models is overkill, considering a single kit can get 2 to 8 different heat spreaders (for a single capacity). I usually get the closest model I can find for my chosen mobo, I usually check the RAM chips are identical if I can't find the exact same reference. At worst I'll get a couple of dual rank double capacity of a tested model that has been tested stable in 4 DIMMs (e. g. 4x8 Gb single rank Corsair 3200 LPX => 2x16 Gb dual rank Corsair LPX). Forums and Reddit can help, too.

 

[Soortt]

Most probable is because they are, indeed, otherwise completely identical - asking a mobo maker to test all RAM models is overkill, considering a single kit can get 2 to 8 different heat spreaders (for a single capacity). I usually get the closest model I can find for my chosen mobo, I usually check the RAM chips are identical if I can't find the exact same reference. At worst I'll get a couple of dual rank double capacity of a tested model that has been tested stable in 4 DIMMs (e. g. 4x8 Gb single rank Corsair 3200 LPX => 2x16 Gb dual rank Corsair LPX). Forums and Reddit can help, too.

Thank yoy for the information.