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Exercise 2 The Motherboard

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

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  1. Exercise 2The Motherboard

  2. Motherboard Form Factors • AT-Type • Baby or Mini AT • ATX-Type • Proprietary Designs

  3. Proprietary Motherboard

  4. ATX Motherboard

  5. Some motherboards are designed for the original Pentium Processor

  6. Others are designed for the Pentium II Processor

  7. AT Motherboard with Pentium CPU

  8. Power Distribution

  9. Black Wires AT-Motherboard Power Connectors

  10. Power Connector

  11. Edge View of Motherboard

  12. Voltages supplied to the motherboard • + 5 Volts • - 5 Volts • + 12 Volts • - 12 Volts

  13. Voltage Regulator

  14. CPU Socket

  15. The MPU

  16. The Pin Grid Array (PGA) Socket.

  17. l int e MPU Socket Lever 17

  18. l int e 2. 1. 18

  19. l int e 3. 19

  20. 4. l int e 20

  21. Fan Heat Sink CPU 21

  22. Industry Standard Architecture (ISA) Bus. • 8-MHz Speed • Supports 8-bit and 16-bit data transfer • Used for slow speed operations such as modems and sound cards.

  23. ISA BUS

  24. 16-bit Cards 8-bit Cards 24

  25. ISA boards installed. 16-Bit 8-Bit Motherboard

  26. Peripheral Component Interconnect (PCI) Bus • 33 MHz • Handles 32-bit and 64-bit data transfers • Processor independent • Supports Plug and Play

  27. PCI BUS

  28. SIMMs

  29. Single In-line Memory Module (SIMM)

  30. Cache Memory

  31. The Chip Set • 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.

  32. Chipset

  33. Main functions of the Chipset • 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.

  34. Super I/O Controller

  35. Super I\O Controller • Interface to the floppy drive. • Interface to serial ports. • Interface to parallel ports.

  36. Keyboard Controller

  37. Keyboard Controller • 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.

  38. ROM BIOS

  39. Identifying the ROM BIOS. Socket Version # R3.60

  40. Electrically-Erasable PROM… EEPROM

  41. Real Time Clock

  42. The Real Time Clock (RTC) contains: • Clock • CMOS memory • And in some cases the battery.

  43. CMOS is used to hold SETUP information.

  44. The FRUs on the Motherboard include: • The MPU • Any board plugged into the PCI bus. • Any board plugged into the ISA bus. • The SIMMs • The ROM BIOS

  45. 9.6 ” intel pentium II ATX Motherboard 12 ”

  46. Power Distribution

  47. ATX-Motherboard Power Connector

  48. Motherboard Power Connector

  49. Power Connector

  50. Power Supply Output VoltagesATX-Type • +5 Volts • +12 Volts • -12 Volts • -5 Volts • +3.3 Volts

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