power supply
http://i60.tinypic.com/2ex5u9i.jpghttp://i62.tinypic.com/15dvoza.jpgswitch board
also the power supply in this batch have a known bug, the remain electricity will stop it working after power off , so if you find it is dead after powering off, you need wait 30-60 min to lease the remain electricity or re-plug the 24 pin cable in switch board to lease it
This is not a bug of the PSU.
These are 750 watt PSU.
2 pci-e connectors plus 1×8 pin motherboard cable split into 2 pci-connectors with an adapter.
Replace the PSU will solve all your problems.
If you keep using thid PSU, your house will burn down, thanks to Mr. Lee.
The prior generation of 1T Dragon miners which draw approximately 1kW at the wall have 1000W PSUs in them and the current ones are supposedly equipped with 1200-Watters. Where did you get your information that they only have 750W PSUs. If your information is accurate, then it is very "alarming" (pun intended).