Chapter 1: Bios & UEFI Flashcards
What controls the system?
Firmware
Where is the Firmware stored?
On a chip on the motherboard called EEPROM
How do we interact with the EEPROM?
Cmos Setup
Where are the changes saved on?
NVRAM (non-volitile)
What is Cmos used for?
Monitoring things + Run diagnostics + Change time + Fan speeds
Why might Firmware be updated?
If there is a bug or the pc can no longer support it
Where can you find the new updates?
Manufactures website
What is updating also known as?
Flashing
How can we access the Cmos program?
Hold F2 at startup
What does boot mean?
Look for a program to run on
What is main thing about cmos?
Can change the boot sequence to speed up the process
What can you enable on advanced options?
Virtualisation… Specifically Intel virt. support
What if you forget your cmos password?
Manually remove the Cmos battery chip
Bios Security
Pasawords+ drive encryption + tpm chip + lojack + secure boot
Monitor things?
Temp + ID (intrusion detection) + voltages + clock + Bus speeds
