I got my machine as well yesterday and spent like 10 hours overall trying to make it work with no luck... I got a modular seasonic 1050W PSU which has a weird 12 pin PCIE connector plugged into it, and on the other side, it has two 6/8 pin connectors like the usual PSU's.
So since my thunder has 8 pins as well, I took the dremel and i cut of the 2 unused pins so ended up with 6 pins. This 6 pins went into the PSU (although the PSU has a 12 pin slot for PCIE, it still went in) but then when I connected all 4 cords to my PSU, the PSU refused to work and this kept on happening for hours. If i disconnect everything from the PSU and test it, it works fine, but when connected to the Thunder, it doesnt as if there is some short circuit. I figured the seasonic guys have there own weird PCIE connections so what the hell!! lemme use there cables.
SO, I used there PCIE cable (the 12 pin weird seasonic cable which then divides into two PCIE 6/8 pins) and what I did was to cut of the connector and divide all 6 pins as follows: the yellow PCIE cables should connect to the red thunder cables and the black ones on the black of the device. Guess what!!!! it worked!! the device started up alllll nice and smooth. I then applied that to all 4 device cables cutting each of them!! after a few hours, I had all 4 thunder cables tied up to my PSU. i started the PSU and it fired up just the way I imagined and was hoping it would be!!
Now to my issue!! at this point i was very happy that I did it and that my device sounds loud and all fans are spinning!! I connected the USB cable to my PC and started the miner!!!!!!!! and it immediately goes off!!!
I really have no clue what to do now!! I ran out of options, I cut all cables in the Thunder and all wired are kinda connected to a PSU, even trying another PSU would take ages to make it happen!! I am really lost and dunno what to do here!!!