I have been overclocking for 2 years in a Lepa 1600w gold. During quad 480 runs with my 3930k at 5.2 is was pulling 1700+ watts from the wall sustained for several minutes at a time for hours and hours of benchmarking. It didnt make any noise or falter once in the 2 years ive had it. It would be impossible for me to pick any other 1600w power supply.