Corsair 163301 Vengeance LPX 32 GB (2 x 16 GB) DDR4 3200 MHz C16 XMP 2.0 High Performance Desktop Memory Kit, Black

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I was looking at a 2 x 16 GB Corsair Vengeance LPX ram and found out that there were two different models Assuming your chips are the same kind of Samsung as mine (based on version) it may exhibit similar properties to mine. 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). 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 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.

Corsair Vengeance LPX Black 32GB 3200 MHz AMD Ryzen - Scan

I currently have got CMW32GX4M2C3200C16 which I bought in October 2018. It's working fine on my Asus x470 pro with Ryzen 7 2700X. 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 know this is a slightly old post now but I came across it on google trying to find the same information. With my kit going from DDR4-3200 to DDR4-3400 it wasn't worth it with the looser timings I couldn't seem to trim down, but to my surprise (on the older BIOS) it did allow DDR4-3600 and that fit better with the scaled up timings I had to use anyway.Corsair Vengeance LPX (2x16GB, CMK32GX4M2B3200C16 ver 4.32). The modules are correctly inserted in slots A2 / B2. I'm using the same processor and same RAM and have since discovered that this specific 32gb set of RAM isn't on my motherboard's (asus TUF x570) QVL for ryzen 3000 compability. Only CMK16GX4M2B3200C16, in 2x8gb configuration. When using DRAM Calculator for Ryzen I also discovered their timings more closely matched the "Samsung OEM" profile so that may be the info that might really help you out the most if you use that utility. Not fully supported it said AND all of the info I am seeing is straight up wrong. When I XMP the values do not match what it says. What my XMP sets is not what Aida64 says the XMP will set (@ 1600 MHz 25-18-18-36 (CL-RCD-RP-RAS) / 54-559-415-255-9-6-36 (RC-RFC1-RFC2-RFC4-RRDL-RRDS-FAW) which is so far off it isn't even funny).

CORSAIR

Glad to report that the system did POST and everything seems to be working smoothly. Did some mem testing for around 10 minutes and it didnt crash, so I guess the pc is usable for now. I will stress test and benchmark tomorrow, too tired now. Maybe a Corsair employee can make a statement about the memory chip configuration (see screenshot)? So, I installed the latest BIOS (dont know if that mattered, but at least the beta BIOS is not broken). 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.Scroll down in thiaphoon report to screenshot your XMP timings. I think the JEDEC timings are listed first in the report, then XMP after. Generally I've had good results when enabling GearDown and disabling PowerDown with both my LPX and RGB kits and Zen+ and Zen2 CPU's. Keeping DRAM voltage near 1.35v seemed to be a sweet spot as using higher voltages didn't seem to have any improving effects for my RGB kit and keeping SOC between 1.0v and 1.1v. I want to buy another 32GB, but I noticed there is a Ryzen optimized version now (CMW32GX4M2Z3200C16), with a bit different timings (?) If you get a good match that may be what you really have if there is any doubt. Keep in mind dram calculator is suggesting what you can use. The situation may very from system to system anyway.

Corsair 163301 Vengeance LPX 32 GB (2 x 16 GB) DDR4 3200 MHz

Unfortunately Thaiphoon Burner has a read error here and reads Samsung B-Dies (Boltzmann, 20nm) but with B-dies timings I can't get the RAM modules to 3200 MHz. Want to start test out dram calculator but if thaiphoon burner is showing the wrong info I don't want to tinker with it yet, want to be sure what it really is. Typically first I use the bootable memtest86 USB and don't event bother booting into windows unless at least one pass is successful. reboot. memtest86. if all good then boot into windows and get your memory settings from Ryzen Master. I am more interested in tightening the timings than augmenting frequencies, so my efforts will be centered on that.

In particular this is a good way to get what your motherboard decides to use by default for termination, cad bus, and misc values. This provides a base point where you know what values already work.