Quote Originally Posted by boblemagnifique
Yes that same similar

A 4 pin molex is normally to feed a SLI or Crosffire (not obligatory into individual)

boblemagnifique your correct - what I have learnt is that this connector is for cards that do not feature an external power connector - as these are the cards that draw all their power direct from the PCI-E slot.

I also doubt that its anything to do with our power supply - the vcore is "isolated" from the 12V system by the PWM section - any droop in the 12V feed will be buffered by the electrolytic caps that feel this circuit.

All in all this is quite a puzzle - kinda want my board back now just to see if it suffers the same problem!