I change these 4 BIOS settings on every PC I build, and they make a real difference

Four BIOS settings worth changing on every new PC build: enabling XMP/EXPO to get advertised RAM speeds instead of the default slower speeds, adjusting Precision Boost Overdrive (PBO) or Multi-Core Enhancement based on your thermal and noise preferences, customizing the fan speed curve for quieter idle and smarter ramp-up, and enabling Memory Context Restore to avoid slow boot times caused by repeated memory training.