To upgrade or modify your HP laptop, start by finding a replacement hard drive. Remove any screws holding it in place and disconnect all wires going into it. Once you have removed it, pop in your new hard drive and connect all its wires back to their original ports on your HP laptop. Then, find a replacement graphics card for your HP laptop: remove any screws from your graphics card, unplug any cables connected, and put your new one in place. Finally, find a replacement memory chip for your HP laptop: remove any screws holding it down and disconnect all of its wires—then plug in your new memory chip. Don't forget about updating drivers for these hardware updates!