I have problem with my mining rig have 12 p104-100 the problem is burn the psu wires every 2 week
You sure you not overloading the channels?
If the psu can’t supply the right power vs power draw, you’ll potentially loose your cards as well.
Are you using over 80% of your PSU wattages?
Plug in Kill A Watt meter?
How are you powering your riser cards?
Undervolting the hard way!!!