Q4 LESSON 1 - ASSEMBLY AND DISASSEMBLY

DISASSEMBLY OF PC

It is to break down a device into separate parts. A device may be disassembled to help determine as problem, to replace a part, or take the parts and use them in another device or sell them individually.

STEP-BY-STEP OF DIASSEMBLY OF A PC 

  1. UNPLUGGING. First thing you do is to unplug every cable that is plugged into your computer. That includes the cables such as power, USB, mouse, keyboard, internet, ethernet, modem, etc. Just unplug all the cables for safety purposes.
  2. OPENING THE OUTER SHELL/CASE. Unscrew the four screws at the back of the computer. On most computer cases, there will be large knobs that you can unscrew by hand or by screwdriver on the back right side of the computer. The left side has small screws because on that side you can't access much on the inside. Once the screws are removed, you can remove the side panels.
  3. REMOVING THE SYSTEM FAN. Unplug the fan from the motherboard. You can find the plug by following the wire from the fan. Next, you will have to unscrew the fan from the outside. 
  4. REMOVING THE CPU FAN. The CPU fan is located right on top of the CPU heatsink, which is a large piece of metal with pins on the top. To remove the fan from the heatsink, remove the four screws securing it in place. 
  5. REMOVE POWER SUPPLY. The first thing to do is to unplug every wire coming from the power supply. Once everything is unplugged, unscrew the four screws holding the power supply from the outside, and then lift it out.
  6. REMOVE CD/DVD DRIVES. Unplug the ribbon from the back of the drive, once that is complete, pull on the tab securing the drive in place, then push it out from the inside.
  7. REMOVE HARD DRIVE. Unplug the connector at the back of the slot and unplug the other end. Unplug the SATA cable from the motherboard and the hard drive. Pull on the tab, then slide the slot out.
  8. REMOVE MEMORY (RAM). To remove the RAM push down on both tabs, holding the RAM in place, which are located at both ends of the RAM.
  9. REMOVE MOTHERBOARD. The motherboard has seven screws holding it to the frame, which are indicated by large white circles around them. Remove them and then lift the motherboard out of the frame.
ASSEMBLY OF PC
A process in which all the internal components of the computer system are fitted to make the computer functional. There is a proper process of attachment and installation of each and every component.

STEP-BY-STEP OF ASSEMBLY OF PC
  1. PREPARE YOUR WORKPLACE. Do not begin if you don't have everything you need. Use an inexpensive antistatic wrist-strap to be safe.
  2. PREPARE THE MOTHERBOARD. Before you secure the motherboard onto the PC case/chassis, inspect it carefully for only visible defects.
  3. INSTALL THE CPU. Use the unlocking mechanism to open the CPU socket which is usually a lever. Carefully line up the pins and place the chip in its socket. Then lower the lever to lock the CPU into place.
  4. INSTALL THE CPU INTO HEATSINK. Install the heatsink and the fan that will cool the processor. Attach the clip that holds the heat sink in place keeping in mind that it may require a fair amount of force. Then plug the CPU fan's power connector into the proper connector on the motherboard.
  5. INSTALL MEMORY (RAM). To install the memory modules, insert them into the proper sockets and push down firmly but evenly until the clips on both sides of the socket pop into place.
  6. PLACE THE MOTHERBOARD INTO THE CASE. Place the motherboard into the case and secure it by screwing it.
  7. CONNECT THE POWER SUPPLY. First, plug the large ATX power connector from your power supply into the matching port on the motherboard. Locate the smaller, square processor power connector and attach it to the motherboard. After, put the power supply into place and screw it.
  8. INSTALL THE INTERNAL DRIVES. Install the SATA that connects the hard drive and CD/DVD to the computer and ATA. Use the included screw to attach your drives to the rails or cage and slide them into the case. When the drives are installed, connect the power and data cables to each one.
  9. INSTALL GRAPHICS/VIDEO CARDS. Begin by removing the backpanel cover from the AGP or PCI then install the graphics board in the slot and then secure the card with a screw.
  10. INSTALL THE ADD-IN CARDS. For each add-in cards, you must choose a free PCI. Remove its back-plane cover to allow access from the rear of the case. Carefully position the card above the slot and press down firmly to seat the card. Secure the case with a screw. 

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