Installing a power supply

These instructions include:

1. Removing the power supply unit
2. Installing the power supply unit.

PRECAUTIONS

• Disconnect the power source.
• Wear an anti-static strip.
• Don’t use force to connect and disconnect any cables.

1 Remove the power supply unit

1. Turn off the computer.
2. Unplug the power cord from the wall socket.
3. Disconnect the power cord from your computer.
4. Remove screws from the sides and back of the system unit.
5. Remove the case of the system unit.
6. Disconnect all power cables gently from each internal component inside the system unit such as:
   1. motherboard (connector P8 and P9)
   2. cooling fan of the CPU if present
   3. hard disk drive
   4. floppy disk drive
   5. CD-ROM drive
   6. tape drive and/or other devices.
7. Disconnect the power cable from the power-on/off switch on the front panel.
8. Remove the screws of the power supply unit at the rear of the system unit.
9. Remove the power supply unit from the system unit.

2 Install the power supply unit

1. Place the power supply unit on the tab and align all screw-holes in the system unit.
2. Secure the screws of the power supply unit at the back of the system unit.
3. Connect power cable to the power-on/off switch on the front panel.
4. Replace the case to the system unit.
5. Secure all screws on the side and back of the system unit.
6. Connect the power cord to the system unit.
7. Plug the power cord into the wall outlet.
8. Turn on the computer and test to make sure that it is working.

 

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© State of New South Wales, Department of Education and Training 2005