What I want to do is have a bargraph style status bar that moves from all LEDs off (0%) to half filled (50%) to all on (100%) while changing to custom colors. This is for both RAM usage, CPU usage/temperature, and potentially custom usage with a prog...

Is it possible at all to use JTAG to check and confirm that all CPU pins are making correct contact and to possibly also test other things on the motherboard? Playing a guessing game with error 'C5' is getting a little old.