Laptop Motherboard also know as System board

A Motherboard also know as System board or mainboard is the main printed circuit board in in the laptop. Unlike desktop PC system boards, laptop system boards come in thousands of different shapes and sizes. Laptop motherboards are model-specific. In other words, you cannot remove motherboard from a Toshiba laptop and stick it into a Dell laptop. All parts inside a laptop are connected to the system board, either directly via a connector mounted on the system board or through a cable.

Components are permanently attached to the system board and cannot be easily removed and replaced without soldering:

  • Hard drive (HDD) connector.
  • CD/DVD drive connector.
  • Memory (RAM) slots.
  • Battery connector.
  • Keyboard connector.
  • Audio (headphone and microphone) jacks.
  • Volume control wheel.
  • Processor (CPU) not in all laptop.
  • Card graphic (GPU) not in all laptop.
  • USB ports.
  • Eithernet (RJ45 aka network) port.
  • IEEE 1394 (Fire Wire) ports.

and some other components and ports.

Components are attached to the system board by cable or connector and can be removed and replaced:

  • Hard drive (HDD).
  • CD/DVD drive.
  • Memory (RAM).
  • Battery
  • Keyboard
  • Processor (CPU) not in all laptop.
  • Card graphic (GPU) not in all laptop.
  • Wireless card
  • Touchpad
  • Screen
  • Web cam

 

The system board is mounted inside the laptop base assembly. In order to remove or replace the motherboard, you’ll have to disassemble the whole laptop.

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