since you have only just bought it then I would ask to change it
PSU Tier list tier 1-2 are good for gaminghttp://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html
I would recommend an EVGA SuperNova Gold G2 / or new G3 /GS / GQ, Platinum P2 / PS, or Titanium T2 or a Seasonic M12-II Evo or S12-II
GOOD PSU EVGA is a B2, G2, G3, P2, GS, PS, or T2. Avoid the EVGA B1 and G1 series I bought a G3 with 7year garentee
That's what I might do, but I'm not sure if they'll take it back. I bought it 2 days ago from Amazon, and I do have prime, but I unpackaged everything already so i don't know if they'll take it back.
Hi - give it a try on returning, I agree with RARRAF the EVGA W1, B1, N1 aren't the way to go (I think the
G1 is fair tho) Most PSU brands have some down n dirty models, along with the good ones.
BTW, don't feel bad. I made the same mistake (my orig PSU was on johnnylucky.org Lemon List),
and the reason I am on this site now trying to help others.
If you have to keep it, it'll run your system.