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 may be having the same problem with the new 520W Corsair HX. It will not start my modern AMD system while my older lesser Power Supplies will. It does work with an old system (pre 12V MB).
I just got my 520 and it is completely quite :( If only Redbeard could check them all. ;)
I am looking forward to a power supply with reliable 12V (I run a lot of drives).