Here's why AMD EXPO/Intel XMP isn't enabled by default

Intel XMP or AMD EXPO are memory profiles containing information about RAM frequency, latency, voltage, and more, and are meant to instruct your motherboard on which settings to use. Many users know that enabling XMP/EXPO in the BIOS/UEFI is necessary to run the memory at the advertised speed and latency. However, what is probably not as obvious is why manufacturers don't enable these settings by default, considering most users will almost always enable them afterward.