Problem with PC starting without XMP support.
Problem with PC starting without XMP support.
I've been using this setup for three years with XMP enabled, but now it won't boot without disabling it. It seems like the memory or the motherboard might have failed. The voltage could also be an issue. Consider checking your power supply and voltage regulator, and maybe test with a different RAM module to rule out compatibility problems.
After installation in the BIOS (if available), choose the XMP profile for your memory. After turning off and rebooting, everything works fine—very straightforward. If your BIOS doesn’t offer an XMP setting, manually adjust the clock speeds and raise the DIMM voltage slightly to 1.35 V instead of the default 1.2 V for an SPD 2133 MHz configuration. For DDR4 chips, this voltage is usually safe up to 1.4 V; beyond that you may need extra cooling.