my PSU is an Antec 650w. yeah its kinda weird because I have a back up mobo an ECS just in case something like this would happen as well as for a an amd x2 4200. I never thought I would have to use them but I guess I had to. But the Psu is working fine on that board for some reason. Also regarding your suggestion on the RMA do you think MSI will accept the warranty for this condition and as well as for AMD for my processor warranty?