How do I enable XMP or EXPO in BIOS to get my RAM's rated speed?

Go into your BIOS, find the memory overclocking setting (XMP on Intel, EXPO on AMD), flip it to Profile 1, save, and reboot. Restart your PC, mash Del or F2 during boot, then look for “AI Tweaker,” “Extreme Memory Profile,” or “EXPO.” This is a standard, manufacturer-supported setting—no warranty worries. Just make sure your RAM is in the correct slots (A2 and B2) first.