DIY EPS 8 PIN Connector

[celemine1Gig]

i was saying that in the picture the -5 volt lin is used, look at the picture. all the 8pin conectors are +12 or -12, the reguler molex has +12 -12 +5 and -5, out of those the -12 +12 and -5 are conected. u wouldnt want to use the -5
at least from what i know

Sorry to say so, but you clearly have no clue.

As Jimbo Mahoney already said, there is no -5V or -12V line on a molex 4-pin power connector. There's only +5V +12V and 2x GND. And GND is pretty much universal. The only thing to worry about on a GND line is perhaps interference(some voltage) on it.

The idea behind using a 8-pin connector in contrast to the 4-pin connector is to theoretically double the amount of current that can flow through the cables in total. In the pic in the first posting the problem is that there are enough (4) GND wires, but only 2x 12V wires are used and just split up to appear as 4. That doesn't really improve the situation. The cable diameter also influences the max possible current. So splitting up one cable into two still has the current limit of the one original cable.