This model operates exclusively at a 2133 frequency.
This model operates exclusively at a 2133 frequency.
I have a 32G Corsair Vengeance RGB pro DDR4 setup. It runs on an Asus B450-F-Gaming board with a Ryzen 2600 processor, both capable of speeds over 2133MHz. The issue is that the Task Manager shows a clock speed of only 2133MHz, and even lower in GPU-Z where it reads 1937MHz. I've tried enabling XMP (using DCOP in my case since my BIOS doesn't support it) and manually adjusting the speed to higher values. However, whenever I change anything and reset the BIOS, my computer fails to start and reports a memory error. This usually indicates that my RAM doesn't support higher speeds. I suspect I may have purchased the wrong RAM, as Corsair doesn't list my kit at such low speeds. Additionally, CPU-Z provides confusing data (refer to the attached image). Under the SPD section for all four slots, the maximum bandwidth is labeled as "DDR4-2133," but the part number listed is "CMW 16GX4M2C3200C16," with "3200" likely referring to the clock speed, not total capacity. I'm really puzzled and unsure what's going on. I also updated my BIOS without success. Could it be that I've bought the incorrect RAM, which only supports 2133MHz? Edit: For others facing similar issues, the problem was that my CPU only supports up to 2933MHz. I attempted to use a lower frequency but didn't change the memory or SOC voltage settings. Usually, XMP/DOCP profiles automatically tweak frequency, voltage, and SOC voltage. In my setup, the ideal settings are 2933MHz memory frequency, 1.35V for DRAM, and 1.15V for SOC. If you're unsure of your settings, even though they don't work, the profiles usually suggest correct values. If you're experiencing this, one of these adjustments might help—try others if needed.
Performing that action also requires adjusting the DRAM voltage manually to 1.35V. By default, the RAM is limited to 2133MT/s. The XMP profile manages voltage and speed, but your CPU may struggle to support the XMP rate. You can still change the RAM speed manually; the Ryzen 2000 should handle up to 2933MT/s, though it might need more than the standard voltage to achieve those speeds.
XxvalentinoxX
01-23-2019, 06:33 PM #5It functions properly! The task manager displays 2933, even though CPUZ remains unchanged. Appreciate the help! : )
To view memory speed in CPU-Z, navigate to the memory section. There, DRAM frequency appears there. The actual DRAM speed is half of what you configure in the BIOS—technically it's in MT/s, not MHz since RAM operates at Double Data Rate. Therefore, if you set 2933 in BIOS, it will display as 1466 in CPU-Z (typically within ±20MHz due to BCLK stability).
snorretje121
01-28-2019, 05:26 AM #8You have two sets of 2 kits. The part number changes based on the kit size—CMW32GX4M4C3200C16 for 2 kits, and CMW32GX4M4C3200C16 for 4 kits. Your current mix of RAM isn't suggested. Could you clarify the version for each kit?
1466 MHz