This is feasible. Ram timing is achievable.
This is feasible. Ram timing is achievable.
I've noticed problems with Corsair RAM operating at XMP on Gigabyte boards before. Some users also reported similar issues with Asus. A random Google search about this topic seems to point the finger at Corsair's SPD quality. If your RAM isn't in the QVL, you might encounter these problems and the only solution is to adjust timings manually. Changing timings means you need some knowledge of basic DDR4 settings.
@Falkentyne clarified the situation. It still shouldn’t have been successful. Likely the manufacturer made a mistake. Unless they didn’t, the situation is very fragile.
Running memory at increased speeds often triggers a setting called Gear Down Mode. This mode activates only when the CAS is configured with even values. That’s why you rarely find kits with odd CAS timings. Gear Down helps maintain consistent secondary timing and enforces a 1T command rate. If you change the CAS to an odd number, the mode is turned off and a default setting runs, usually with faster sub-rates. Some devices automatically push the memory into a 2T command rate. By reducing the CAS, you can achieve higher latency or a 2T rate, depending on the configuration.
Thanks, I wasn't aware of that. Honestly, as long as the system runs smoothly without freezes or crashes (before the PC became barely functional), can I keep it like this? There are risks involved. Since I don’t have another RAM kit and I really don’t want to revert to my old system with an outdated AMD 965 and only 4 GB RAM.
No risk, just not optimal. If I were you I would do a little more troubleshooting on this. I would try running the memory down to 2933Mhz which is the native speed the ryzen IMC is suppose to support load XMP but just bump the speed down and see what happens. I build my latest pc in early march of this year and my situation was similar to yours, I would get random bluescreens after the first few days and over time it would get worse to the point that running no xmp and 2133Mhz on a 3000Mhz kit wouldn't even make it into windows. I tested different memory kit and issue presisted, I didn't have access to another board or CPU so I assumed it was the board and sent it in for RMA to ASUS they came back saying there was nothing wrong with the board go it back and still same issue, so I bought a 2200g and put it in and sure enough my memory was rocking 3000Mhz XMP no issue and booting into windows just fine. I RMA my 2700x and received word from AMD RMA that the IMC on the CPU was bad. All my hardware was bought brand new from newegg or amazon. So if you cannot narrow down the problem right now let it run if it gets worse I would try to get ahold of some parts to swap out.
I'll test at 2933 Mhz and observe the outcome. By the way, I've never experienced bluescreens or any errors before. The first time the system would simply power down, but in an unusual manner, the screen and peripherals would shut off while the fans continued spinning. The only choice was to restart it from the power supply unit. I sent back the motherboard, assuming that was the issue. Even after replacement, problems persisted. This time it was different—system would freeze while the CPU was under load or during random gaming sessions, and the only solution was to restart the PC. Ignoring every other component except the CPU (which I couldn't test), I attempted to replace the motherboard again. Initially, it wouldn't boot into Windows, indicating a BIOS issue (it seems you can't install a version above F30 on B450 Gigabyte boards with a second-gen Ryzen CPU). After fixing the BIOS problems, the freezing issue remained. I then tried reducing the RAM's cas latency, and it seems to be working now.
I would consider running Memtest overnight to check for any issues. Such problems can be tricky to identify, it was several months before my concern became severe enough for diagnosis. It feels similar to a car problem I faced recently—it would lose power and waste fuel, yet no check engine light appeared. Since I’m not one to rush part replacements until I’m confident, I waited about six months with the car still underperforming. One day the check engine light illuminated, and I checked the code—it was related to the mass air flow sensor. Cleaning it helped a little, but eventually I had to replace it, and it worked afterward. Stay patient, keep trying to troubleshoot, and you’ll find the solution.