Hey again all,
I got a hold of another Power supply and put it in. That fixed the second problem(the one where the power just shuts off). The first problem still exists though

The hissing is not from the power supply since it happens on both power supplys. So I think it is either the mb or processor. Any more thoughts? Btw it is not coming from the speakers it is definitly something inside.
Thanks,
Jutah