The newly added memory isn't registering at 3600MHz.
The newly added memory isn't registering at 3600MHz.
Yesterday I installed fresh RAM modules. I switched from my previous HyperX HX426C15FBK2/16 2*8 GB 2666MHz to the new Corsair Vengeance RGB PRO 2*16 GB 3600MHz model. With the older sticks, I could enable XMP and successfully overclock to 3000MHz without any problems. However, with the newer RAM, any adjustments to settings won’t boot properly—no XMP support, only MHz changes, and it won’t start anymore. It’s currently running at 2666MHz. Modifying the voltage still works. I expect a screen once it powers off and restarts, restoring BIOS settings to defaults. My motherboard is MSI Z270 GAMING PRO CARBON, CPU is Intel Core i7-7700K, GPU is NVIDIA GeForce GTX 1080, OS is Windows 10 Home 20H2 x64, and power supply is a 800W unit from Lepa. Someone might be able to assist with this issue.
Based on your description, it appears the motherboard isn't properly initializing the memory at 3600MHz, which is preventing the system from starting. First, verify that your RAM is listed in the QVL for your specific board: https://www.msi.com/Motherboard/support/...port-mem-4. You might attempt to use a higher voltage—such as 1.4V or 1.45V if XMP demands 1.35V. Additionally, try booting at a lower frequency initially so the board can adapt. Run the XMP profile but set the frequency to 3200MHz first. After rebooting, enter BIOS and adjust the clock speed to 3466MHz before trying again. Keep repeating this process until you reach 3600MHz. If it still fails, the memory controller on your board may be weak, making high speeds unattainable due to hardware limitations. Remember, XMP is considered overclocking and there are no guarantees it will succeed. The speed listed on the packaging is a manufacturer's estimate, not an assured outcome.
Thanks for your tip, and I've managed to achieve a little. So I've got XMP now on with the sticks running at 3066. But can't get any higher. I couldn't get 3100MHz to post, even with turning the voltage up to 1.5V, and I'm not really comfortable going any higher. I also couldn't find my memory on the MSI website of supported sticks... Anyway, if there is something else I can try to achieve higher speeds that would be great. My rig is bottle necked at different ends anyways, but with the current situations I can't build a new rig. I guess I have to be happy with what I have so far.
It appears the memory controller on your chip is limited to around 3000MHz. To reach 3600MHz, consider adjusting the primary timings and configuring them manually rather than relying on XMP. A possible setting is 20-22-22-42-64 in that sequence. Apply the voltage at 1.35V, set the command rate to 2T, and keep other parameters auto. Press F10 to save and exit, then fine-tune each timing individually if you boot up successfully.
Your setup seems to be working fine with the default settings, yet you're encountering issues with XMP. It could be due to a mismatch between your RAM specifications and the XMP profile you're using, or perhaps an incorrect profile configuration. Double-check the RAM type and speed against the manufacturer's guidelines. Also, ensure the BIOS is updated and that you're using compatible drivers.
This situation is quite serious, but to address your query the processor might struggle to maintain 3600MHz. The RAM needs to support that rate, along with the CPU’s memory controller. Any malfunction in either component will prevent proper operation. Verify the XMP profile timings and voltage (you can take a screenshot or note them). Adjust the settings manually in mode, beginning at 3000MHz and increasing gradually. Stop when you encounter trouble, then reduce by one MHz until you find a stable frequency.