just a month ago i purchased a gf3 1650 psu..( por atx 3 and 12hpwr connector) i'have a 350 euros amazon bonus
at first switch on a sound like buzz and capacitors discharge, but psu work fine. ( al sistem is under UPS ( apc smart ups 2200 and parameters are good)
few days after same things .. a sound like capacitor discharge like a small explosion but psu work
after one month ( yesterday ) the two main capacitors and inrush current protection explodes ( spark and smoke) fortunately my pc is not dameged.
purchased trough amazon but unfortunately the time for a return was expired 30 days ( for amazon) mjy fault.
Italian TT assistance not respond.....a true waste of money .
Now i'have replaced it with my old superflower leqdex 2000W and all is fine.