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Motherboard and Bios - PowerPoint PPT Presentation

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Motherboard and Bios. Generic Modern Motherboard. Courtesy of ASUS USA. PCI-X. Chipset. CPU Socket. Battery. SATA. RAM. Power. PCI-X and AGP – (Advanced Graphics Port) - Special slots for graphics cards

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Courtesy of ASUS USA









things to know about the slots
PCI-X and AGP – (Advanced Graphics Port) - Special slots for graphics cards

PCI – (Peripheral Component Interconnect) – Most common on newer PCs. Used for Graphics, Network, Firewire, and any other add-on card for a newer PC. Roughly 10 times faster than ISA

ISA – (Industry Standard Architecture ) – Common on older PCs (Over 8 yrs old) – Slower Bus speed than PCI

Things to know about the slots
riding the bus
Lines of communication within the PC

Capability measured in speed and width

Modern PCs usually have a bus speed of 133-533 MHz – Older PCs have 66 or 133 MHz

Important when buying additional RAM, RAM must run at the same speed as the Motherboard

Main Bus vs. Front side Bus

Bus width – amount of data that can be sent over the same wire at the same time

Modern PCs – Maximum 64 Bits Bus Width

Riding the Bus
internal and external bus
Internal and External Bus
  • Internal Bus – On the board itself (Processor, RAM)
  • External Bus – leads outside of the box (USB, Keyboard connections, PCI etc)
  • Can have different speeds
pc card speeds
PC Card Speeds
  • AGP – usually 32 Bits
  • PCI – 32 or 64 Bits
  • ISA – 8 or 16 Bits
cmos battery
CMOS Battery
  • Lithium Battery that backs up the System BIOS
  • Needs replacing every so often
  • Signs it needs to be replaced
    • Clock does not keep time between reboots
    • Computer “loses” hard drives, floppies, and other devices that are installed on the computer
    • Other assorted weirdness
bios basic input output system
BIOS (Basic Input Output System)
  • A power-on self-test (POST) for all of the different hardware components in the system to make sure everything is working properly
  • Activating other BIOS chips on different cards installed in the computer - For example, SCSI and graphics cards often have their own BIOS chips.
  • Providing a set of low-level routines that the operating system uses to interface to different hardware devices - It is these routines that give the BIOS its name. They manage things like the keyboard, the screen, and the serial and parallel ports, especially when the computer is booting.
  • Managing a collection of settings for the hard disks, clock, etc.
        • Thanks
bios updates
BIOS Updates
  • Newer mobo's often have updates
  • Adds functionality, fixes bugs, speeds things up
  • Methods:
    • Making a boot floppy
    • Boot CD-ROM
    • Program that re-boots and updates
  • Enemy #1: Heat
  • Active cooling
  • Passive cooling
  • Moving parts wear out
active cooling
Active Cooling
  • Fans
  • Heat Exchanger
  • Liquid
passive cooling
Passive Cooling
  • Heat Sinks
  • Heat Exchanger