4 one-click BIOS changes that unlock the PC performance you paid for

Most PCs ship with conservative BIOS defaults that leave real performance on the table. Four quick BIOS changes can close that gap: enabling XMP/EXPO to run RAM at its rated speed instead of the slow JEDEC baseline, enabling Resizable BAR (plus Above 4G Decoding) to let the CPU access full VRAM, trying legitimate one-click overclocking options, and enabling Fast Boot to reduce startup times. Each change takes seconds and costs nothing.