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.
what 500w power supply? You can have anything from that 550w psu with 10a on the +12v rails, or a corsair hx 520 with 40 amps. Not to mention, there's the quality issue.
There are MANY, many better choices for cheaper. Try the Xclio Goodpower 500w, which uses the same guts as the antec but with a fan that doesn't ramp down, which is the key to long life in the fuhjyyu capacitors in them, the Enhance ENS-5150, which is a high quality 80+ certified silent power supply (same guts as silverstone 500w EF +), and the Corsair HX 520, which is one of the best picks. 40 amps, silent, modular, and high quality.