I have used water cooling system for the three zones as i circled in red color . When the temperature of the metal back plate approached 34.5 degrees , the system shut down ! . I know this vga problem because other parts in my computer works flawlessly . So anyone can identify any zone that need to be cooled ! . I bought a strong fan for extra cooling for the fear that the the temperature sensor . It works little but everything remains the same ! . I attached image here so that any one can comment or help . Thank ahead everybody ! .
