I have a Thermaltake Toughpower 750 watt psu and am upgrading my computer. I have a GTX 480 which requires an 8 pin PCI Express connector which I don't have. An optional cable adapter was supplied for the 8 pin connection which takes a 6 pin connector, and two 3 pin big white molex connectors and joins them into an 8 pin connector that works fine. My concern is that this mightn't be as stable as a direct 8 pin connector. I'm not going to be using SLI or probably won't be overclocking. Will this setup be reliable? the psu puts out 60 amps by the way. Any help would be appreciated,
I do not know why the graphics card manufactures even bothered with the 6+2 pin connector.
Yes, it is supposed to have an increased current capacity. But look at the six pin plug. It has 3 hot wires (yellow 12 volt lines) and three ground wires (the black ones). Now look at the 6+2 connector. It has the same 3 hot wires, but it adds 2 extra ground wires for a total of 5 ground wires.
Now, I used to think I knew a little about electronics (45 years experience), but will someone please explain how adding ground wires will increase current capacity?
Xivilai, just use the 6 pin PCIe power connectors. They will work fine.