Check your PC's performance, it seems RAM is not working well.
Check your PC's performance, it seems RAM is not working well.
Hi everyone, I recently upgraded my PC. I have a Strix B250 F board with an i7-6700 CPU at 3.40 GHz, Corsair Vengeance LPX RAM (DDR4, 2x8 GB, 3000 MHz). After running the bench test, the system reported that the RAM was not performing at its potential at 2133 MHz. I checked if XMP was enabled and found it wasn’t. When I turned XMP on and tried to adjust the DRAM frequency differently, I encountered a boot failure with the message “system unstable.” I’m unsure if there’s another setting I need to change.
Your CPU and motherboard combination of 2133 will result in this.
Also just to mention. Don't upgrade simply because the memory isn't being fully used; you might waste a lot of money with minimal improvement in actual performance.
Hi, I didn't mind much because when I activated XMP, the board displayed a clear list of available speeds, which felt quite simple.
The motherboard is compatible with RAM speeds up to 3866.
QVL memory performance reflects the original RAM speed set for that CPU.
i7 2600 Specifications indicate that using DDR4 2x8 GB at 3000 MHz is essentially an overclock. If XMP isn’t functional, consider manually adjusting the primary settings. Be sure to set the correct DRAM voltage; otherwise, you may encounter a black screen during boot. Should the CPU’s IMC accept the new frequency, it should load the BIOS interface. Searching online suggests this configuration might rely on XMP 2.0 and can be managed via tools like cpu-z.
Only the RAM listed in the QVL document is confirmed to run at its rated speed. However, the CPU’s IMC must also support those frequencies and timings. It’s possible that a 3000 MHz setting won’t work with your CPU and you should try a different frequency. Although unlikely, some boards simply reject certain RAM types.
Supported options include DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666, DDR4-2933, and DDR4-3200.
Reference: https://en.wikipedia.org/wiki/DDR4_SDRAM
The upgrade considerations:
- You might need to swap the motherboard to discover the CPU’s IMC.
- Alternatively, replace the CPU to verify the board’s requirements.
- Or accept that the RAM may be defective and won’t exceed 2133 MHz.
This could result in a significant system replacement.
With my Ryzen 3800x, XMP settings aren’t effective, but setting primary timings and voltage does succeed.
The maximum supported speed was 2400 MHz; trying it now could yield results.
Consider using a 2400 MHz RAM module in a 3000 MHz motherboard—will it function?
Thank you for your assistance and time. Please note this might be a simple question, especially since you’re new to the setup.
That's incorrect. With a 6th generation CPU, the board can only support RAM speeds up to 2133, while a 7th generation chip would allow up to 2400. You might be able to install a kit for higher speeds, but performance will still be constrained by the chipset. The XMP example you mentioned was using an unlocked CPU and a Z board, which enables faster RAM speeds. However, your setup includes a B250 with a locked 6th generation CPU. The QVL modules listed are tested under normal conditions and may not perform at those speeds based on your configuration.
I just discovered the manual, seems like the IMC won't back it. Disappointing for the user. Links shared for the user.