The B550 Aorus Pro doesn't allow changing XMP or OC settings for the memory.
The B550 Aorus Pro doesn't allow changing XMP or OC settings for the memory.
D-Ram voltage of 1.35V is sufficient. It looks like certain USB devices might cause problems. Windows 10 and USB hub connections are likely related, but this isn't the main concern. XMP settings don’t match USB issues—manually entering an XPM profile may help. Ensure your drivers and BIOS are current. You can check that information.
Same device, different storage solution. Turn on the XMP profile 1 and increase the voltage to 1.35V, okay? I faced a similar issue with my G.Skill Sniper X 3600CL19 32 GB kit. It was running at 3600 with 1.2V and then the screen went black on restart. I had to remove the CMOS battery.
I adjusted it to 1.1V and it failed after a short time. Now every change requires Prime95 testing to assess stability. Previously, it worked for about 5 minutes when idle. For testing, it's quicker and more convenient—ideally running at full 3600MHz rather than lower speeds. That's why I invested in those memory modules. I followed the instructions in the video, but it didn't help. Are you considering enabling the XMP profile and setting the DRAM voltage to 1.35V? If so, let me know—then it might not be effective either, even at 1.38V.
Ugh, that's frustrating. Some users experience issues with RAM on the x570 and B550, but only with the Ryzen 5000 yet. They're limited to 3200 MHz and it only works with certain brands like MSI, Gigabyte, ASUS, etc. In all cases, it functions at 3200. Even when you manually set timings without using XMP, it still works for older Ryzen models.
Well...if your motherboard and/or CPU can't support DDR4-3600 (maybe it's a weak IMC, bad trace routing, or outdated BIOS), that's not something you can fully control. If the Integrated Memory Controller or the CPU can't handle such a high speed, what options do you have? Changing it to DDR4-3200 or DDR4-3400 isn't a permanent fix—it's just adjusting one setting in the BIOS—but it can help troubleshoot. If @Salt Shaker is right, then the BIOS firmware on B550 boards needs a bit more tuning. To be clear, Ryzen 5000 chips have a stronger IMC than Ryzen 3000 models, and AMD only promises up to DDR4-3200; anything higher requires overclocking the IMC. As with any overclock, results may vary.
These are indeed 'Auto' settings. The latency is quite high on CL24. Removing XMP and only adjusting the System Memory Multiplier forces the board to estimate its own timings, often resulting in very loose settings. You might want to turn on XMP/A-XMP and then set the DRAM frequency directly to DDR4-3200 for better control. Some boards automatically adjust the SOC voltage, while others don't.
I followed the instructions step by step, slowly. Initially, I adjusted the memory multiplier to 32.00, set the SOC to 1.1V, and configured DRAM voltage at 1.35V (after re-entering BIOS). Once Windows 10 was installed, I verified the timings and performed a memory stress test using Prime95. The process completed without issues, so I restarted the PC using the Windows restart option. I then re-entered the BIOS for the second time, changed the XMP profile to "Profile 1," and confirmed everything started smoothly. After about 15 minutes, the system launched without crashing. I plan to run MemTest86 later to ensure stability. Thanks a lot! I’ll update if needed, but so far it looks perfect. It’s great to have this knowledge as an engineer! For a bit of fun, should I mention some beer? Unfortunately, it’s still at 3200MHz, not the full 3600MHz, but that seems better than CL24, right? I’m still puzzled why it isn’t 3600MHz—the XMP profile says so. I have a screenshot from when I successfully booted at 3600MHz (it crashed briefly). Maybe there’s something wrong with those settings? I tried increasing the voltage to 1.4V, but that didn’t help. I’m starting to feel like I’m chasing something. Will the difference between 3200MHz and 3600MHz be noticeable? Yes, I’d definitely prefer 3600MHz if possible. Also, I’m planning a upgrade to a Ryzen 9 5900X in 2021-2022, and I’d like to get a GPU like the Nvidia 3080 or Radeon 6800XT. Will these components let me use 3600MHz? And should I consider going up to 32GB?
@TwisteddJoker Welcome! The news is promising, at least the system is starting up and running smoothly with DDR4-3200. It seems your gradual approach was appropriate, depending on the Prime95 tasks you choose—some stress more on memory, others on CPU features like FPU. Running MemTest86 for a few hours would be ideal. If DDR4-3200 meets the advertised XMP specs, consider upgrading to DDR4-3400 next, then try that. DDR4-3400 (Multiplier 34.00) with XMP settings works well. At this point, it looks like your Ryzen 3600 might not be compatible with DDR4-3600 memory. However, the B550 board could need firmware tweaks (BIOS updates). If CL16 for DDR4-3600 fails, try lowering or adjusting the timings—aim for CL14 or CL15. 'Tech Jesus' from Gamers' Nexus ran initial tests with Ryzen 5000 chips and suggests similar results for 3000-series. Their CL14 kit outperformed others, and they clarified that it wasn't just stick count but DRAM configuration that mattered. Even if you manage DDR4-3200 or 3400, reducing timings can help. 'Enable me' to run at DDR4-3600 could be worth it if the issue lies with your CPU model. Plus, AMD claims the IMC is stronger than previous generations, supporting higher speeds. They mentioned potential upgrades to DDR4-40000/3800, though the real boost came from single-rank/dual-rank DRAM setups. For your 32GB build, you should be fine with current timings, but adding more modules increases stress on the IMC. If you eventually hit a ceiling with four sticks, downgrading to DDR4-3400 might be the next step. Keep an eye on stability and performance across different games—latency and bandwidth differences are minor. Feel free to reach out if you need help fine-tuning further.