Here’s a concise information piece on the Samsung B75s1 BIOS, based on common motherboard/naming patterns (likely from a Samsung laptop or all-in-one PC, possibly the B75 chipset desktop board from the early 2010s — though Samsung desktop boards are rare; more probable it’s a mislabel or from a Samsung NP series laptop with an Intel B75 chipset or similar).
F2 → power on → release F2 after 5 seconds.The BIOS allows for the setting of a Supervisor Password. This is critical for AIO systems often used in corporate or public environments. Samsung B75s1 Bios
In 2017-2018, Intel issued microcode updates for Spectre and Meltdown vulnerabilities. The Samsung B75s1 BIOS updates from late 2018 include these critical security patches. Here’s a concise information piece on the Samsung