my main pc. found a old post about amd and this psu.
Re: Upgraded Power Supply won't power up
I have had a similar issue in the recent past with a board with a similar AMD chipset. I could not use certain PSUs (in my case, a Corsair TX650). It had to do with the Power_OK signal from the power supply not being recognized by the chipset.
may just re wire the whole thing and deal with it tomorrow.