ANOTHER FIRE HAZARD WARNING:

One of my 16-card October kits that came calibrated at 0.865 V started to melt/burn at the PSU. It is a Seasonic Platinum 860W connected to the M-board using the standard 2 PCI-e power connector setup. It had been running fine for over a month at 620W and then suddenly I started smelling smoke coming from part where the modular connectors plug into the PSU.

Fortunately, it happened while I was in the room so I managed to shut it down before anything serious happened. 2 PCI-e modular ports on the PSU were melted and no longer usable. However, I managed to repair the rig using the other unused PSU ports. I now have it running with 2 x PCI-e cables AND a jerry rigged CPU 12V cable going to the ring terminals.

I also brought the voltage for all the cards down to 0.83 V. The loss in GH/s was minimal (the setup runs at 540 GH/s now) but I sleep much better.

Note: This is not the first time I've had a high-end modular PSU burn out at the modular connectors.