Hello all. This is just a general question that I don't think really matters that much but I would just like to make sure. With my previous Radeon HD 5850 and my current GTX 660, I've noticed that they both came with molex to PCIe cables for powering the fan of the GPU I assume? Anyway, my PSU also came with PCIe cables so I've powered my GPU using the cables directly from the PSU so is it ok to do that or I should use the molex to PCIe cables? What makes me wonder about it is that the molex to PCIe cables have 2 wires going to pin 2, top row and nothing going in pin 5, bottom row while the PCIe cable coming from the PSU itself has 1 wire going into each pin so that's what got me thinking. I have no electronics knowledge to determine different voltages, types etc. so does it make any difference which cables I use or they're the same? Thanks.
OS: Windows 7 Ultimate SP1 x64
MB: ASUS Z87-A LGA 1150
CPU: Intel Core i7-4770k (Haswell) (@4.6Ghz)
CPU Cooler: Scythe Mugen 3 (Single-Fan)
GPU: 2GB Gigabyte Nvidia GTX 670 (Windforce 3x)
Sound: Creative Fatal1ty Recon3D Professional
RAM: 16GB Corsair XMS3 (@1333Mhz, 9-9-9-24, 1.65v)