Chapter 3

Chapter 3

1. brownout

   • power surge goes down and does not work

2. noise

   • interference from generators

3. spike

   • instant increase in voltage that last a short pereod

4. blackout

   • complete loss of ac power

5. Computer cases are produced in a variety of form factors. Form factors refer to the size and shape of the case.

   • The computer case cover is removed as one piece.
   • The top and side panels of the case are removed
   • The top of the case is removed before the side panels can be removed.
   • A latch is pulled to release the side panel, which can swing open.

6. A technician might be required to replace or install a power supply.

   • Step 1. Insert the power supply into the case.
   • Step 2. Align the holes in the power supply with the holes in the case.
   • Step 3. Secure the power supply to the case using the proper screws.

7. CPU

   • Step 1. Align the CPU so that the Connection 1 indicator is lined up with Pin 1 on the CPU socket. This ensures that the orientation notches on the CPU are aligned with the orientation keys on the CPU socket.
   • Step 2. Place the CPU gently into the socket.
   • Step 3. Close the CPU load plate. Secure it in place by closing the load lever and moving it under the load lever retention tab.
   • Step 4. Apply a small amount of thermal compound to the CPU. Follow the application instructions provided by the manufacturer of the thermal compound
   • Step 5. Align the heat sink and fan assembly retainers with the holes on the motherboard.
   • Step 6. Place the assembly onto the CPU socket, being careful not to pinch the CPU fan wires.
   • Step 7. Tighten the assembly retainers to secure the assembly in place.
   • Step 8. Connect the assembly power cable to the CPU fan connector on the motherboard.

8. To install RAM, follow these steps:

   • Step 1. Align the notches on the RAM module to the keys in the slot and press down until the side tabs click into place.
   • Step 2. Make sure that the side tabs have locked the RAM module.
   • Step 3. Visually check for exposed contacts.

9. To install the motherboard, follow these steps:

   • Step 1. Install the standoffs in the computer case aligned with the locations of the mounting holes in the motherboard.
   • Step 2. Install the I/O plate on the inside of the back of the computer case.
   • Step 3. Align the I/O connectors on the back of the motherboard with the openings in the I/O plate.
   • Step 4. Align the screw holes of the motherboard with the standoffs.
   • Step 5. Insert all the motherboard screws.
   • Step 6. Tighten all the motherboard screws.

10. To install the HDD, follow these steps:

    • Step 1. Position the HDD so that it aligns with the 3.5 inch (8.9 cm.) drive bay opening.
    • Step 2. Insert the HDD into the drive bay so that the screw holes in the drive line up with the screw holes in the case.
    • Step 3. Secure the HDD to the case using the proper screws.