I have had a Gateway FX6840 for several years. Over the years I increased ram, changed two graphic cards and HDD. Everything was always working fine. My son wanted to upgrade it, so I proposed to swap the HDD for a SDD. It is much faster but, all of a sudden, the GPU runs super hot and when it reached 109 the system shuts down. How could replacing HDD for a SDD cause temperature in the GPU to increase so much? Cabling is pretty much the same. Besides, I took advantage of the situation to completely clean of dust the insides. I left in the old HDD, but I can't believe it is that. Ideas?