Hello there guys and gals, I came back from field work and the moment I powered on my PMG4 FW800, I did not hear any boot chime. No video and after a while the CPU fan runs at full speed. Pushed the PMU reset button, removed the battery but still the same result it will not boot. Tried to remove all the peripherals, memory sticks down to one, the same thing, not able to boot. I am puzzled. Any tips guys?