To start with, I will first look at what the BIOS is. Essentially, the BIOS is a microchip found on the motherboard. BIOS is essentially what is referred to as firmware. Firmware contains basic low-level software that controls the hardware in the device it is installed in. In the case of computers, the BIOS contains basic input and output software which is used to communicate with hardware. When the computer is first switched on, the BIOS software is used to test the hardware within and connected to the computer. Once complete, the software in the BIOS is used to access the hardware.

To start with, I will first look at what happens when the power button is pressed on a computer. When the power button is pressed, a circuit is closed which causes a test to be preformed of the computer’s power supply. If there is a problem with the power supply, usually there will be no power output at all and the computer will not start.

The BIOS is essentially a microchip on the motherboard. This is also often referred to as firmware. Older BIOS chips use Electrically Erasable Programming Read-Only memory called EEPROM, whereas modern BIOS uses flash RAM. This allows the code in the BIOS to be updated, but the code on the BIOS cannot be directly run from the chip itself.

The next step is that the BIOS performs a number of tests. These tests are referred to as POST or power- on self-test. These are a number of quick tests to check everything appears to be working. There may still be hardware faults, but the POST tests should pick up any basic problems.

BASIC INPUT OUTPUT SYSTEM

INEXPERIENCED CHANGE BIOS SETTINGS

CREATION OF A NEW FIRMWARE INTERFACE

UNIFIED EXTENSIBLE FIRMWARE INTERFACE

GRAPHICAL NETWORK CAPABILITY

Open the BIOS at startup

How to open the BIOS through Windows

Select Recovery and restart

What is BIOS?

How to enter the BIOS

Entering Advanced Mode

Changing Boot Options

Legacy BIOS Boot Order

Secure Boot

Enable XMP profiles

Temperature monitoring and fan control in UEFI BIOS

How to make sure your PC is operating at an optimal temperature

Conclusion

What is BIOS?

Main Menu

Enable or Disable Serial Port

Enable or Disable LAN Port

BIOS Video Settings

Security Menu

How to Set User Level Password in BIOS

Virtualization Technology

Boot Display Option in BIOS

Conclusion

Introduction

What is the BIOS?

How does BIOS work?

Power On Self Test

Booting an OS

BIOS limitations

Unified Extensible Firmware Interface

How to get started with Freshbooks

Intro

Firmware Malware in General

LogoFail (The Basics)

A Good Thing Indeed

How it Actually Works

Method 1: EFI Partition

Method 2: BIOS Update Tools

Method 3: Physical Chip Flashing

Am I Vulnerable?

How to Protect Yourself

What is BIOS?

Power On Self Test

Beep Codes

BIOS Software

CMOS battery

What's the difference between BIOS and CMOS?

UEFI (Unified Extensible Firmware Interface)

Advantages of UEFI

Secure Boot

ASUS

MSI

Gigabyte

Introduction

Biogeographic Data Branch Programs

What is BIOS?

Accessing BIOS

BIOS Homepage

BIOS Splash Screen

Data Security

Available Data Types

Data Contributors

Map Overview

Navigate The Map

Search for Data

Adding Data

Metadata & Download

CDFW Open Data Portal

Reference Data

Tool List

Active Layer

Identify Features Tool

CNDDB QuickView Tool

Basemaps

Additional Help

The Bios

Legacy Bios

Ue5 Bios

Uefi Drivers