ch6_BIOS Flashcards Preview

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Flashcards in ch6_BIOS Deck (14)
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1
Q

What does the north bridge handle

A

The bridge between CPU and the rest of the computer. IO devices, high speed interfaces….

2
Q

What does the south bridge handle

A

Lower speed devices. USB controller, HDD controller.

3
Q

What does the term Chipset refer too

A

The north and south bridge

4
Q

What is the North bridge called in AMD systems and Intel systems

A

In Intel Systems the north bridge is called Input Output Controller Hub
In AMD systems the south bridge is called Fusion Controller Hub

5
Q

What hub is the South Bridge part of

A

The platform contorller hub

6
Q

What is ROM

A

Read only memory

7
Q

What is UEFI

A

Unified Extensible Firmware Interface

  • Enables files systems that enable booting to drives larger than 2.2 TB
  • Handles Boot loading
  • Non dependent on x86
8
Q

What is the CMOS

A

Complementary Metal Oxide Semiconductor

  • stores device specific parameters
  • Keeps Clock up to date
  • Almost always built into the south bridge.
9
Q

What can be tweaked within the BIOS

A
AI tweaking
advanced settings
Monitor
Boot tools
Information
Configuration
10
Q

What security options does the BIOS offer

A

Chassis Intrusion Detection - Trips a swtich when the case is open
DriveLock - Protects HDD from getting lost or stolen
TrustedPlatformModule - secure cryptoprocessor for acceleration for cryptographic functions

11
Q

What is the POST for

A

Powr on self test
Self diagnostic of devices
- Video is always first.

12
Q

Explain the boot process

A

PSU test for proper voltage
CPU sends memory address out
BIOS POST passes and control is passed to bootstrap loader
(UEFI) Hands control to Boot manager

13
Q

What is a PXE boot

A

a Preboot execuiiton environment to boot a PC withot any local storage

14
Q

How is the CMOS cleared

A

Pins on the motherboard