Check JEDEC standards for RAM speed compatibility without XMP support.
Check JEDEC standards for RAM speed compatibility without XMP support.
The system doesn't allow XMP settings or BIOS options, and the CPU is a Core i7 6700K. It uses an HP 2B4B Z170 motherboard. The i7 supports only DDR4-2133 officially, but the installed RAM is a DDR4 2666 module. I was unsure since I thought higher speeds require manual tuning or XMP. I’m thinking about upgrading to DDR4 3200 if it fits.