Update: Wind up having to buy a oscilloscope to try and diagnose a problem I was having and wound up reworking the transformer board a little. I installed 5 caps in an attempt to clean up the output. 4.7uF/400V Cap between pins 22 and 26 on transformer. electrolytic 470uF/50v Between 5vd Output (electrolytic) 47uF/50v Between 5vd Output (electrolytic) 10uF/50v Between 5vd Output (electrolytic) .1uF/ (ceramic) Installed at the screw connector on the main board (for best results)