I recently purchased T-CREATE DDR5 RAM (2x48GB, 6400MHz CL32) to use with my Ryzen 9950X3D and Gigabyte Aorus Master X3D Ice motherboard. It's listed on the motherboard's QVL for the advertised EXPO speeds, which I enabled. However, after running some CPU stress tests, including Prime95, my power completely shut down within 2 minutes. I switched to testmem5 with the DDR5 Ryzen 3D @ anta777 profile, which also caused a shutdown within the same time frame.
I tried using a slower profile at 6000MHz and even adjusted clock speeds and voltages, but nothing worked. The only configuration that passed both testmem5 and Prime95 was the stock setting at 5200MHz.
I thought the issue might be my CPU, but when testing each stick individually in the same slot, I found that one stick runs the EXPO settings flawlessly and can even achieve 6200MHz with Uclock=Memclock, while the other stick struggles to surpass 5600MHz.
What could possibly cause this discrepancy? I've heard that often testmem5 fails on errors instead of causing a PSU shutdown. Should I consider returning the RAM under warranty? I'm concerned about getting a replacement set that might be just as faulty, and is this kind of issue common? The sticks appear undamaged physically.
2 Answers
Honestly, issues like this can happen, especially when pushing RAM beyond JDEC timings. While Teamgroup isn’t exactly "no-name" RAM, you might want to be careful with overclocking features like EXPO—they’re still essentially just overclocking. I'd recommend returning it if one stick is clearly not functioning as expected.
It sounds like you've likely got a defective RAM stick, especially since one is performing well while the other isn’t. Definitely check for any motherboard updates and reach out for a replacement. And just in case, it wouldn’t hurt to do a power audit to rule out any other issues.
Totally agree! Teamgroup has been in the game for a while, but even good brands can have defective units sometimes. Returning it could save you more headaches later!