Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
I would highly recommend the Seasonic S12 series. They have all the power you'll need if you get the 500 or 600 watt ones (you could probably just get a 430W one too, but heck, whatever makes you feel safe) and they are quite nicely quiet.
Also, about your memory and your processor choice...
My A8N-SLI has an incredibly frustrating problem. I have successfully set my A643200+ to run at 250FSB and 2.5GHz confirmed by the BIOS and by CPUZ and it is stable after 12 hours of simultaneous Prime95 torture test and CPUburn. I have set my memory to run at DDR500 speeds and it ran just fine...