The RAM displays 2400MHz while it should be 2666MHz
The RAM displays 2400MHz while it should be 2666MHz
You're using a system with a BIOS, not a regular PC. The RAM speed shown by CPU-Z depends on the BIOS settings, not just the hardware specs. To set it to run at 2666 MHz, you'll need to adjust the BIOS parameters for your motherboard. Check your motherboard manual or manufacturer website for instructions on how to change the RAM speed settings.
Enable XMP settings so the chip can operate above 2133 or 2400MHz. Also verify the memory details in CPU-Z. A reading of 1333 indicates the memory is running at 2666MHz.
Have XMP configurations for the memory chips. Turn on XMP mode in the BIOS of your motherboard. When you reach the memory settings in the BIOS for DDR4 speeds, you’ll find two XMP profiles; pick one. Save these changes before closing the BIOS. The DDR4 memory will operate at its rated maximum of 2666MHz. Edited November 17, 2020 by Edward L