How To Replace Power Supply. Locate the power supply. When the power supply is fixed in place its time to plug in all those cables.

Lay the tower case on the right side so your power supply will not fall and it will not hurt anything when you take it out. Place your new power supply box inside of the computer. The power supply is held into the computer case by mounting screws.
Remove the all screw of power supply.
Locate and unscrew these. If your power supply is modular plug the cables into their sockets on the back of the supply. Locate the power supply. When the power supply is fixed in place its time to plug in all those cables.

