Mike, Care to explain *why* ground must be connected to ground? So far it work= s w/o=20 probs, btw. Also how did you get the 50W figure for the +5V load? The PS is rated fo= r=20 4.8A from the +5V output, so that's 24W max, which needs to include my ap= ps. =20 And if I had to use that much load anyway, I might as well find another p= ower=20 source ... such as tapping 16.6V off the laptop power-supply or something= =2E Cheers, -Neil. On Saturday 03 May 2003 15:50, Mike Singer scribbled: > Ground must be connected to ground, PICDUDE, period. > Better load +5v with 50 watt or more. This will rise up > 12v to slightly higher value needed for high level > programming (HVP). > > > Good Luck. > (You definitely need it when experimenting with PSU) > > Mike. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.