Our initial modules (Rev 0) had reliability issues due to the PCB layout (Printed Circuit Boards). We received Rev 2 PCBs this morning and they are currently being assembled.
Do you reckon they had the good sense to equip the PCBs with 4 PCIe power connectors this time around?
They'll likely be pushing about 600W into these boards...
I hope to god they learned their lesson from the likes of Bitfury. I also hope it's not 600 per board cause that would be stupidly ridiculous. I am expecting 300W per board though. If you look at this picture you'll notice two 8pin PCIE connectors - one on each side of the board.
https://hashfast.com/hashfast-announces-fastest-bitcoin-mining-chip-in-the-world/ click the first image and enlarge it to "full screen"
There was an update from them a while back saying that they "reopened the BJ (and Sierra?) cases installed upgraded power supplies", I don't see why they would have to do that if the power draw issue was resolved... or did they do that (and likely cost them more to open, replace and repack) so we could all put another upgrade board and not need to swap PSUs? So does that mean that they are kind enough to save us the money that we would have to spend to power 2 boards? Humm....
2x6pin PCIe connectors are sufficient for 600W as long as they are on seperate sets of PSU leads. The problems experienced by [very few] bitfury users were almost exclusively caused by using a single lead with 2 plugs on it.
The config allows for 6+ and 6- wires. This is sufficient because in comparison, I have antminer systems running happily using only 4+ and 4- wires from the ATX leads and that is around 500W