Test newly bought PSU for stability

[Exodias3219]

Good day! I have recently bought a second hand Seasonic M12II EVO 620 watts. I want to thoroughly test it before leaving the computer overnight for downloading files. Are there any software that can test the PSU? The PSU still has warranty. My system unit runs silent and absolutely no clicking or abnormal sounds except the case fans spinning. Thanks!

i5 3470 no OC
h61mlv
gtx 560 no OC
8gb hyperX fury
2 case fans
1 500gb hdd

 

[CountMike]

Just run some benchmarks and/or torture tests like OCCT.