UEFI vs BIOS
Also searched as: uefi · bios · firmware · motherboard firmware
What it means
The low-level menu that runs before Windows loads, where you set memory speed, fan curves, and boot options. "BIOS" is the old name; "UEFI" is the modern version, but people use the words interchangeably.
More detail
This is where XMP/EXPO, Resizable BAR, and fan settings live. Every board's menu looks different, which is why guides can only teach the concept, not the exact clicks. …
In the Blackbook
The deeper explanation continues inside the app. The Blackbook publishes its verdicts here — the full write-ups stay in the book, on your rig, next to your own measurements.
The Compy Blackbook holds 191 graded entries like this one, judged against your hardware — and every change it does make is reversible, with the receipt to prove it.
See Compy →