Para makapasok sa BIOS usually the key is DEL, some manufacturers of MoBo designed theirs with key F1, F2, F10, etc.
Other Functions ng mga Function keys include Boot Overriding, memory diagnostics, POST Message, etc.
Para makasiguro, refer ka sa Manufacturer's Documentation ng iyong MoBo (User's Guide) para sa complete details, at regarding sa BIOS Set-up. Kahit I-search mo lang yung Model ng MoBo mo sa Google, meron yan.