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Exercise 2 The Motherboard. Motherboard Form Factors. AT-Type Baby or Mini AT ATX-Type Proprietary Designs. Proprietary Motherboard. ATX Motherboard. Some motherboards are designed for the original Pentium Processor. Others are designed for the Pentium II Processor.

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Exercise 2 the motherboard

Exercise 2The Motherboard


Motherboard form factors
Motherboard Form Factors

  • AT-Type

  • Baby or Mini AT

  • ATX-Type

  • Proprietary Designs



Atx motherboard
ATX Motherboard






Black Processor

Wires

AT-Motherboard Power Connectors


Power Connector Processor



Voltages supplied to the motherboard
Voltages supplied to the motherboard Processor

  • + 5 Volts

  • - 5 Volts

  • + 12 Volts

  • - 12 Volts



CPU Socket Processor


The MPU Processor



l Processor

int

e

MPU

Socket

Lever

17


l Processor

int

e

2.

1.

18


l Processor

int

e

3.

19


4. Processor

l

int

e

20


Fan Processor

Heat Sink

CPU

21


Industry standard architecture isa bus
Industry Standard Architecture (ISA) Bus. Processor

  • 8-MHz Speed

  • Supports 8-bit and 16-bit data transfer

  • Used for slow speed operations such as modems and sound cards.


ISA BUS Processor


16-bit Cards Processor

8-bit Cards

24


Isa boards installed
ISA boards installed. Processor

16-Bit

8-Bit

Motherboard


Peripheral component interconnect pci bus
Peripheral Component Interconnect (PCI) Bus Processor

  • 33 MHz

  • Handles 32-bit and 64-bit data transfers

  • Processor independent

  • Supports Plug and Play


PCI BUS Processor


SIMMs Processor



Cache Processor

Memory


The chip set
The Chip Set Processor

  • The support chips that make the microprocessor a microcomputer.

  • Applications Specific Integrated Circuits (ASICs) that provide the signals, controllers, interfaces and buffers that the system needs to operate.


Chipset Processor


Main functions of the chipset
Main functions of the Chipset Processor

  • A System Controller handles timing, interrupt and DMA control, and power management.

  • A Memory Controller provides interconnection and control of memory systems.

  • A Peripheral Controller connects the MPU to internal and external devices such as disk drives, buses, and peripherals.


Super I/O Processor

Controller


Super i o controller
Super I\O Controller Processor

  • Interface to the floppy drive.

  • Interface to serial ports.

  • Interface to parallel ports.


Keyboard Processor

Controller


Keyboard controller
Keyboard Controller Processor

  • Communicates with the microprocessor in the keyboard.

  • Performs a parity check.

  • Converts serial data from the keyboard into the parallel data needed by the computer.

  • Generates an interrupt to alert the system that a key has been depressed.


ROM Processor

BIOS


Identifying the rom bios
Identifying the ROM BIOS. Processor

Socket

Version #

R3.60



Real Time Processor

Clock


The real time clock rtc contains
The Real Time Clock (RTC) contains: Processor

  • Clock

  • CMOS memory

  • And in some cases the battery.



The frus on the motherboard include
The FRUs on the Motherboard include: Processor

  • The MPU

  • Any board plugged into the PCI bus.

  • Any board plugged into the ISA bus.

  • The SIMMs

  • The ROM BIOS


Atx motherboard1

9.6 ” Processor

intel

pentium II

ATX Motherboard

12 ”





Power Processor

Connector


Power supply output voltages atx type
Power Supply Output Voltages ProcessorATX-Type

  • +5 Volts

  • +12 Volts

  • -12 Volts

  • -5 Volts

  • +3.3 Volts


Pentium 4, Processor

Heat Sink & Fan


ISA Bus? Processor


PCI Bus Processor


AGP Processor


Accelerated graphics port agp
Accelerated Graphics Port (AGP) Processor

  • Operates at twice the speed of the PCI bus or at 66MHz.

  • Even higher speed versions are being developed.

  • Presently used only by Video Cards


DIMMs Processor


Dual In-line Memory Modules (DIMMs) Processor

have components and pin

connections on both sides of board.


Chipset Processor


Super I/O Processor

Controller


ROM BIOS Processor

Battery


I/O Ports Processor


10101 Processor

10101

I/O Ports



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