I just sold a dell gpu server on ebay. It had 4 8+7 PCIE power cables in it. The guy I sold it to just sent me a message saying the cables don't fit the Tesla M40s he bought. I'm looking at the nvidia documentation and its referencing a cpu cable and dongles for pcie connectors. Does anyone know if these things have a port for the standard pcie power cables or do they use something else? Thanks