
Plug a six-pin power connector from your power supply into the six-pin power terminal on your graphics card, if it has one.

This secures the graphics card to your computer so that it doesn't slip out. Screw the screw that held the case cover in place through the graphics card and into the hole in your case. Using even pressure is usually the best way to go. While you don't want to break the card, it will take some force to properly seat it. If your card requires a PCI-Express x16 slot, for example, look for a slot marked with an "x16." To install the card, orient its connector directly above the slot and push it in. Generally, the PCI-express slots are closest to your CPU and are marked with their speed. Plug your graphics card into the appropriate slot.

If there is a card in place of the cover, unscrew the screw securing the card and remove it from your computer. Typically, you do this by unscrewing the Phillips-head screw that holds it in place and lifting the cover out of the case. Remove the slot cover that covers the slot where you will be installing your graphics card. Lay the cover on its side so that you can more easily access its card slots. Remove your computer's case cover by following the instructions outlined in your computer's manual. While you don't technically need to remove any other cords, you might find it easier to work with your computer's case if there is nothing else connected to it. Unplug the power cord from your computer. Touch a bare metal part of your computer's chassis to ground yourself and eliminate any static electricity buildup that your body may hold.
