Recently my power supply overheated, this caused something to melt and produce a very bad smell. After ordering a new 550W power supply and wiring up all the connections, when turning on the computer a capacitor decided to ignite, causing a smoke cloud and destroying the graphics card (GTX 760). After reviewing what went wrong and plugging in a 630, the new graphics card worked fine. I do remember a cable was touching the graphics card and the area of damage was the same area where the cable was touching.
Was the cable touched the graphics card the issue or was it something else?