Hello Thanks in advance for reading (and hopefully, replying) Specs (all new): Case: Raidmax scorpio 868w w/ 420W PSU MOBO: Gigabyte GA-MA69 series CPU: AMD athlon x2 3000 w/ own heatsink and fan RAM: 2 X 2 gb corsaid DDR2 PC6400 I have assembled everything except the HDD. There is a slight confusion with front panel connections w.r.t power switch polarity. When I plug in the PSU, nothing happens.....no mobo light, no beep, no fans, no sound. I became smart (or v. dumb) and plugged in my new PSU 2x10 V pin into an old mobo (and kept the 12 V in the new mobo) and both mobo's lit up. But when I plug in the 2x10 from old PSU into new mobo, nothing happens. I read somewhere that the psu wont start if mobo is not installed correctly, but it iis nstalled on brass brackets (supplied by manuf) and there is no contact anywere else. Help!