I’ve melted 6 and 8 pin pcie due to poor cable construction/pins while mining.  Countless breakout boards melting also.  Eventually settled with no more than 75w per 8 pin cable and many more quality cables to stop it.  Sellers literally sell non compliant cables on the daily.  Then EVGA started giving away a right angle adapter with high spec 1080-1080ti’s due to melting twin 8 pin plugs.  They added capacitors inside this adapter to help with surge currents/stress on the pins.  I got lucky sue to having smoke detectors hovering over all miners.  Others not so lucky.

Fast forward to this shit show with stupid tdp’s and custom connectors.  People are literally bending the cables at the connectors 90 degrees to stuff it into cases.  Some people have broken their glass sides due to the pressures exerted on the cables/glass.  People flocking to these 4000’s due to the long drought will be granted some smoking  GPU performance, literally.  The pins cannot sustain such punishment and needs to change.  The whole pcie power standard need rethought IMO.  The person who doubled the 6 to 8 pin power maximum by adding 2 additional ground wires needs beaten.  Now this 4000 series stuff being the wave of the future, no thanks.