PCI-E power questions

[VirtualLarry]

I just opened and installed a Xion PowerReal 880W PSU into my quad-GPU F@H cruncher.
It has 4 PCI-E leads, but only two sets of wires coming from the PSU, with two sets of PCI-E connectors on each lead.

Would I be correct in surmising that when it comes to power delivery, that it is no better than a PSU with only two PCI-E power leads, and using a pair of PCI-E power splitters?

Because I have an OCZ 850W PSU with 4 12V rails like the Xion, but it only has two PCI-E power leads, for which I would need to use a pair of splitters.

 

[Zap]

Would I be correct in surmising that when it comes to power delivery, that it is no better than a PSU with only two PCI-E power leads, and using a pair of PCI-E power splitters?

No. IIRC the 75W limit was with the connector (or pins) themselves, not the wires (as long as they are of sufficient gauge).

 

[Aluvus]

Would I be correct in surmising that when it comes to power delivery, that it is no better than a PSU with only two PCI-E power leads, and using a pair of PCI-E power splitters?

The splitters add a little extra resistance and an extra point of failure, but otherwise yes they are essentially equivalent.

 

[Zap]

One other thought is if the PSU has working OCP, it may limit the amount of current to the cable.