Okay, so I wiped off the thermal paste on both the heatsink and CPU, and applied Antec Silver 5 in the shape of a rice grain on the CPU, and attached the heatsink back up. Coretemp shows idling at 40-45 degrees. Not good is it?
And it crashed as well. The artifacting on the screen is a precursor to the crashes which leads me to believe it is a video card issue. Memtest passed with no errors.
Where do I go from here?