CSS 2

• Motherboard


  The large printed circuit board found inside the system unit case, often referred to as the system board or main board because it contains the microprocessor, chipsets, the main memory (RAM), and the ROM BIOS
• Motherboard


  • Holds computer essential parts and connecting parts together in place to receive power and to communicate with one another
• Types of motherboards

  • AT Motherboards
  • Baby AT Motherboards
  • ATX Motherboards
• AT Motherboards


  The oldest of the main boards, used in earlier 286/386 or 486 computers, with two 6-pin power connectors
• ATX Motherboards


  Started in the 90s, with a single power connector, used for P2/P3 or P/4 processors
• Motherboard components

  • Expansion slots (ISA, PCI, PCIe, AGP)
  • RAM slots (SIMM, DIMM, SO-DIMM)
  • CPU socket
  • BIOS
  • Northbridge
  • Southbridge
  • CMOS battery
  • Power connectors (AT, ATX)
  • IDE connector
  • SATA connector
  • I/O interface connectors
• Expansion slots


  Slots on the motherboard to install add-on cards
• RAM slots


  Slots on the motherboard to install memory modules
• CPU socket

  Socket on the motherboard to install the processor
• BIOS


  Integrated chip on the motherboard containing information and settings that can be modified
• Northbridge


  Chipset that communicates with the processor and controls interaction with memory, PCI bus, cache, and AGP activities
• Southbridge


  Chipset that controls I/O functions like USB, audio, serial, BIOS, ISA bus, interrupt controller, and IDE channels
• CMOS battery


  Battery that stores information in the BIOS
• Power connectors


  Connectors on the motherboard to receive power from the power supply (AT, ATX)
• IDE connector


  Connector to interface disk drives
• SATA connector


  Faster connector to interface SATA hard disks or optical drives
• I/O interface connectors

  Connectors on the motherboard to interface with other computer components
• Choosing the right compatible motherboard is vital in determining the overall speed of a PC
• Motherboard Parts Compared to Human Body
• Motherboard


  The main circuit board in a computer that connects all the other components
• Nervous system


  The system that coordinates the body's activities and transmits signals between different parts of the body
• Motherboard


  • It is the main circuit board in a computer that connects all the other components
  • It allows the different parts of the computer to communicate and work together
• Importance of motherboard

  • It allows the different parts of the computer to communicate and work together
  • It provides the necessary connections and pathways for data and power to flow between components
• Common parts of the motherboard

  • CPU
  • RAM
  • Expansion slots
  • Chipset
  • BIOS
  • Ports
• Before starting computer disassembly, make sure you have the tools you need and they're all close by and handy
• A video adapter card is the interface between a computer and a display monitor
• CPU is used to distribute electricity from the power supply to the motherboard and other components
• The CPU fan is located right on top of the Power supply, which is a large piece of metal with fins on the top
• External cable connections include monitor, keyboard, power, mouse, Ethernet & USB
• Personal Computer Assembly

  1. Open the case

  2. Install the power supply

  3. Attach components to the motherboard

  4. Install motherboard

  5. Install internal drives

  6. Install drives in external bays

  7. Install the video adapter card

  8. Connect internal cables

  9. Re-attach side panels

  10. Connect external cables

  11. Boot computer for the first time
• Personal Computer Disassembly

  1. Power off the system

  2. Unplug power cables

  3. Detach the side panels/open the case

  4. Remove the system fan

  5. Remove the CPU fan

  6. Remove the power supply

  7. Remove CD/DVD drives

  8. Remove the card reader

  9. Remove hard drive

  10. Remove the RAM

  11. Remove the motherboard
• How to remove a card reader

  1. Unplug the wire first

  2. Unscrew the screws holding the card reader in place

  3. Remove the protective plastic cover by lifting the tabs on the top and bottom
• City of Good Character
• How to remove a hard drive

  1. Unscrew the four screws securing it in place

  2. Be very careful not to drop the hard drive as it is very delicate
• How to remove RAM

  Push down on both tabs holding the RAM in place, which are located at both ends of the RAM
• How to remove the motherboard

  1. Remove the seven screws holding it to the frame, which are indicated by large white circles around them

  2. Lift the motherboard out of the frame
• What's More
• For online learners:
• For offline learners:
• Assemble and Disassemble Activity