Not sure whether this question should have been asked in graphics cards or not...
I realize that the 6-pin PCIe graphics card connector is good for 75W whereas the 8-pin (6+2) connector is good for 150W. But the only difference I see is that the 8-pin has an couple extra ground (-) wires added for stablity. How does that make any difference in allowing a higher wattage / i.e current carrying capacity? The same 3 x Pos (+) wires still have to draw all that extra current? I haven't noticed any larger guage wires on the 6+2 pin cable than the 6-pin cable per same PSU.
I realize that the 6-pin PCIe graphics card connector is good for 75W whereas the 8-pin (6+2) connector is good for 150W. But the only difference I see is that the 8-pin has an couple extra ground (-) wires added for stablity. How does that make any difference in allowing a higher wattage / i.e current carrying capacity? The same 3 x Pos (+) wires still have to draw all that extra current? I haven't noticed any larger guage wires on the 6+2 pin cable than the 6-pin cable per same PSU.