Hey guys, I would like to share with you how my "used parts mining experiment" ended up.
I would like to stress here, that the PSU and the MB were considered as functional, but potentially faulty parts which I've got for free. The result is obvious! Note, that this 750W PSU (LEPA) was running only 2x 1060 3GB cards.
Please always use a new parts, or at least parts which you are sure they are fully functional. The consequences might be very bad, if your "mining cave" will catch in fire, burn your parts, or cause any downtime. The PSU you should be using should have Surge Protection enabled, this awesome feature might save you a lots of troubles.