How to change PC power supply

The story,

Since I have showed you how so check for power supply failure, I should also show you how to change it.

Here's how to do it

1. Turn off AC power to the PC and remove the power cord from the PC power supply.
2. Open the CPU casing
3. Disconnect the connections from the power supply to the motherboard, hard disk, DVD-ROM and any other power connection (Picture 1)
4. Open the 4 screws of the power supply from the back of the CPU (Picture 2)
5. Take out the power supply
6. Attach a new power supply and screw it to the CPU casing (the 4 screws)
7. Connect all the wire connection to the Motherboard, hard disk, DVD-ROM and others.
8. Double check if all the connections are tight and no wires are blocking the CPU fan from spinning
9. Close the CPU casing and plug in the power cord.
10. Turn on the PC and check if it works. If not, check the connections again.

Picture 1

Picture 2