[NUC] Bioses Overview for NUC
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What are Bioses and UEFI?
The Bioses (Basic Input/Output System) is the program that controls the computer from the time it powers on until the time the operating system takes over. The purpose of the Bioses is to identify and initialize processor, memory, hard drives, optical drives, and other hardware.
The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (Bioses) firmware interface, with most UEFI firmware implementations providing legacy support for Bioses services.
What is CMOS?
CMOS (Complementary Metal-Oxide Semiconductor) is an onboard battery-powered chip inside the computer that stores information. It's also referred to as a Real-Time Clock (RTC) or non-volatile RAM (NVRAM).
When do I update the Bioses?
Update the Bioses on your computer only if the newer Bioses version can solve a specific problem. We don't recommend Bioses updates for computers that do not need it. You can view all Bioses changes in the Release Notes included with the Bioses updates in Download Center.
Where to do I get Bioses updates?
All Bioses updates are available at Download Center. Enter your NUC Model Number in the search box for available driver/bioses downloads
How do I update the Bioses?
There are several methods of updating an NUC Bioses to the latest version. The number of options available for any particular model varies, depending on drive support and Bioses update file size. See Bioses Update Instructions.
Where do I find a Bioses Settings Glossary?
For a list of Bioses settings along with their purpose and options, see the Bioses Settings Glossary.
How do I enter the Bioses setup?
The Bioses Setup program can be used to view and change the Bioses settings for the computer. You can access the Bioses Setup program by pressing F2 just as the system powers on before the operating system boots.
If any problems occur after making Bioses settings changes, such as poor performance or intermittent issues, reset the optimal default values:
- Press F2 during boot to enter the Bioses setup.
- Press F9 to set defaults.
- Press F10 to Save and Exit.
If the system locks or does not boot after changing the Bioses settings, do a Bioses recovery.