Adding RAM to your desktop is easy. All you need to do is first SELECT a RAM for your desktop. It should be compatible with your motherboard and processor. Then open up the cabinet and look for RAM slots on your motherboard. Make sure your desktop is not powered while your carry out this process. Also make sure you wear an antistatic glove while inserting the RAM in the slot. After you spot the slot, just press/release the knob to release the RAM module and replace with the new one.