Corsair 178300 Vengeance LPX 16 GB (2 x 8 GB) DDR4 3200 MHz C16 XMP 2.0 High Performance Desktop Memory Kit for AMD Ryzen, Black

Product Information

The latest that I read was around the end of the year (December '17) and a few buyers of this RAM was saying they could only get up to 2933 mhz so I don't know if that has changed. There were no details, though, so I don't know if it mattered about the motherboard or BIOS. Like I was trying to say to paridoth I think for ver. 4.32 the memory type correlates to "Samsung OEM" in Dram Calculator.

I am very sorry for my post being so long and please excuse me if my English is not perfect, but it's not my native language. Assuming your chips are the same kind of Samsung as mine (based on version) it may exhibit similar properties to mine.If your problem is you can't get your XMP kit to run at XMP frequency then start with JEDEC speeds first (2133 to 2666) with XMP DRAM voltage. I may consider moving over to the Z version if that's a better option. I know people have really good results getting higher speeds and tighter timings with the Samsung B-die Z version so I'm not sure why the B version I have has different specs if it's the same memory module on there. As you step up in frequency and you can't seem to get DRAM Calculator values to work you can revert to what did work (from the previous step) starting with ProcODT, RTT, and CAD values. Finance is only available to permanent UK residents aged >18, subject to status, terms and conditions apply.

I can't find anything recent although the motherboards seemed to be either MSI or Gigabyte boards (but, people were only reporting around 2933 mhz). I don't know if it matters about BIOS version or motherboard manufacturer but I was planning on considering a Ryzen build. My online research has found till now that everyone with hynix chip (RAM version 5.39) have the Intel optimized(B) module while those who owns the samsung b-die (RAM version 4.31) have the AMD Optimized(Z) module. The DDR4 form factor is optimized for the latest AMD and Intel DDR4 motherboards and offers higher frequencies, greater bandwidth, and lower power consumption than DDR3 modules. Vengeance LPX DDR4 modules are compatibility-tested across AMD and Intel DDR4 motherboards for reliably fast performance. So, I installed the latest BIOS (dont know if that mattered, but at least the beta BIOS is not broken).The Z version is supposed to always be Samsung B die and the B version (the one I have) people say is usually Hytnix. Details about the extent of our regulation by the Financial Conduct Authority are available from us on request.

I don't know. I haven't been able to confirm what that version really "is" from anywhere. I suspect it's just lower grade b-die. I'm sorry to revive an old thread but i'm investigating the issue and I have a theory that i could not confirm or discard as invalid. reboot. memtest86. if all good then boot into windows and get your memory settings from Ryzen Master.I was trying for weeks to get my memory stable at 3600MHz. I tried many different settings offered by the Ryzen DRAM Calculator and non of them worked for me. I was never able to post after applying values provided by the calculator. Overall memory support on my MSI B350M Mortar Arctic has gotten a lot better as well. With B-Dies it can even boot DDR4-3600 into Windows without manual adjustments just on A-XMP. You do still have to make some manual adjustments for full stablity, but that is still a big improvment compared to the early AM4 days. Hi thanks for the reply, did not get anywhere with dram calc and got so tired to reset cmos every time so funny enough I tried your values and that was the best I could get I think for 3600Mhz on my Tomahawk Max board. I also have a kit of 4.32 ram (different model, size, and dual rank) and found it didn't like tRC timings (and some lower tRFC) out of the box and were a bit problematic to get working. I needed to reconfigure ProcODT, RTT, and SOC to push over DDR4-3200 successfully. I used the import feature from Thaiphoon because I noticed that even though I put in the correct specifications in all the main fields like rank, number of modules, frequency etc the timings still changed when I used the imported file in DRAM calculator. I left Samsung b-die instead of Samsung OEM, as you suggested, because that would give me invalid numbers. Then I heard about what you said about tRFC and I set the alternative setting (432) as well as the tWRRD (3).