Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to replace a power supply [title] Get a large surface to lay our all your parts and a cup to put all the screws that you are going to be taking out in. [title] Unscrew and remove the side panel of your tower and locate the power supply. [title] Before you start messing around inside your pc case, make sure you are grounded so there is no static involved.

Ending1: [title] Use the screwdriver to remove the top half of the tower by prying it open. [step] You will have to detach this panel off of your computer. Ending2: [title] To put all your parts in your pc case, first take apart the front panel. [title] Remove the sides from the front panel. Ending3: [step] Static can mess up your video card and motherboard. [title] Unscrew the screws (there will be around 4 of them) connecting the power supply to the back of the case and put them in the cup. Ending4: [title] Locate the power supply's or output output input so it will be easy to find out what you are going to do. [title] Remove the power supply or output output output.

Answer format: ending1/ending2/ending3/ending4