I dont know why ppl connect 2 or more psu`s.
Problem is equalizing currents, that always destroy one of psu. Faster or slower but always do this.
Regards
You are wrong in my opinion.
Proper riser setup isolates one psu from the other.
Look at this
https://www.amazon.com/Eyeboot-Port-110-120V-amps-port/dp/B01EB33JOK/ref=sr_1_2?the psu inside it is isolated from the mobo. Same principle for powered risers.
Only data goes to the mobo
