Need assistance with a new RAM module?
Need assistance with a new RAM module?
I assembled this system at the end of last year. An MSI Pro Z690-A equipped with a 12700k Wi-Fi motherboard, a Gigabyte 3080 Ti GPU, and a basic 16GB DDR5 RAM. I only picked that RAM because it was the only option available back then—it was nearly impossible to find DDR5 at that time. Now DDR5 is more common, so I upgraded to a good quality model (some call it an oxmoron). I chose the G.Skill 6400 CL32 with 32GB RAM. Setup went smoothly, but I enabled XMP to maximize performance. However, I’ve noticed games sometimes crash during matches. This has happened twice in the past 24 hours without any prior problems. The issue seems to be that disabling XMP makes the purchase worthwhile, since I could have gotten much cheaper RAM if I’d stayed at 4800 CL40 anyway. Should I consider returning it? Is it because my motherboard is relatively inexpensive? The specs say the card can support up to 6400 RAM.
Tried disabling XMP but RAM configuration stayed the same. Read it might help. Played another game and it still crashed. Had similar problems before too—just turned off XMP and ran slower. It feels like I might be missing something. People keep suggesting tighter or looser timing settings, but no clear explanation. I understand where the settings are, but not what they mean.
They discuss how RAM timings and speeds are closely linked by specific numbers. When you adjust the RAM’s timing settings, it directly affects the clock cycles and the numerical values assigned to the RAM. For instance, if your RAM is set for 16-16-16-36 and you change the timings to 14-14-14-32, you’re effectively tightening them—higher numbers mean tighter settings. Conversely, loosening the timings will make them lower. This relationship works the same way with any configuration; it’s a balance between clock cycles and the speed you choose.
Think of it like a seesaw: increasing one side means sacrificing the other. If your RAM struggles to run at a certain speed (like 3600MHz), you might need to slightly reduce the timing to stabilize performance or lower the speed. Alternatively, keeping the speed steady while loosening timings can help, but it’s a delicate trade-off.
You can also try boosting voltage to aid stability, though it should stay within safe limits. The key is understanding the balance—raising speed and tightening timings can backfire if overdone, potentially causing system issues. It’s crucial to know what you’re doing, especially if you’re not familiar with RAM adjustments.
In most cases, you can fix compatibility problems by either lowering the speed or adjusting the timing, without changing the voltage. If you prefer, you can experiment with both changes together. Just remember, each adjustment has its limits, and staying within specs is essential.
Thanks a lot for going through this with me. Now I really understand what everyone is saying. I’ve adjusted the BIOS, turned off XMP, changed the RAM speed to 6200 while keeping it auto, and kept the same timings and voltages as before. Latency is a bit higher than before, but I’ll test some games to check stability. The other point is that you can’t be sure until something goes wrong. I spent a lot of time running tests—GPU, CPU, RAM—and none showed issues, but crashes only happen when everything works together in gameplay. Thanks again for the clear and helpful explanation. I’ll keep an eye on the lower speed and see how it performs.
I just discovered more details about my motherboard. It turns out the real speeds that can work with any realistic setup are significantly lower than the advertised maximum of 6400 MHz. The main site claims up to 6400 MHz, which makes you think extra RAM would help—but it probably only supports a single stick at that speed. The only 6400 kits I found were actually 2x16 GB, making the 6400 figure seem unnecessary. For two RAM sticks, the supported speed caps around 5400. With four sticks, it drops to about 4000. I’ve attached the relevant sections from the site where this information is hidden. Just a heads-up for anyone planning to spend too much on RAM: don’t be me! Check the manual carefully. This doesn’t mean you should avoid buying it, but be aware that it’s likely limited to around 5400.
Notably, the RAM doesn't support an XMP profile at 5400MHz... it's listed for 5200, then 5600... I plan to test 5400 using the timings from 5200, aiming for less than 10ms delay. :: note edit:: The 5400MHz configuration appears stable so far, but I might have discovered a way to set the upper limit. I learned that the system runs fine at 6400MHz, yet when attempting a BIOS restart it reports an OC failure. Now my approach is to start at 5400, then adjust to 5600, then 5800, etc., tweaking timings each time and letting it boot to Windows before switching to BIOS. If the error appears, I know the speed is pushing limits and won't reduce latency further. Once it triggers the error, I'll step back one frequency and try lowering latency instead. ::edit 2:: This strategy seemed promising with a 6200 profile using 6000 XMP settings, but during gameplay I noticed instability indicators. So I'm sticking with 5400MHz for reliable performance. ::edit 3:: Discovered that some BIOS versions still display the error message even after a Windows reboot. After booting into Windows and rebooting to BIOS, I changed RAM frequency to match the current setting. If it confirms stability, I can switch between BIOS entries freely without triggering the alert. If not, I'll try 6200 with 5800MHz instead, keeping latency in mind.
Performance depends on balancing factors beyond just latency. Even small differences can matter in real-world usage. If both options are stable, the choice might come down to frequency benefits or other considerations. The calculator shows a minor gap between 5400cl26 and 5800cl28, but 5800 is slightly slower. Decide based on your specific needs rather than focusing solely on numbers.
Old subject, I understand... but just in case anyone wants to know... MSI has recently refreshed the BIOS and also adjusted the specifications on their site for my motherboard. Previously, they mentioned with two RAM sticks you'd get up to 5400+MHz... now it states up to 5400-6000MHz. I used to pick 5200CL26 before... but after the update I've been going with 5600CL28 and it's working fine. Today I'm trying 6000CL32 and it's performing well. 6000CL30 didn't work reliably and eventually wouldn't boot into BIOS with the failure message. 6000CL32 only adds a small delay compared to 5600CL28 or 5200CL26, so I'll keep testing—I'm sure some applications will gain from the extra speed. By the way, MSFS 2020 seems a bit smoother when using Tobii eye tracker. Overall, it turns out companies can and do update motherboards to enhance RAM compatibility.