t_and Posted December 22, 2017 Share Posted December 22, 2017 Hello, At the moment I'm mounting my new set, and a question came up when branching all psu cables. Im mounting a 1920x in a X399 Aorus, with a Corsair 750i. The mobo comes with an ATX 24 pin connector, and then on the upper left part with 1x 8 pin atx_12v and 1x 4 pin atx 12v. Do I need to "feed" the cpu with both 8 and 4 pin connectors? Or is the 8 pin enough? https://images2.imgbox.com/68/f9/sDOgwe1g_o.jpg Im saying this because regarding the cables that come with the PSU, there is one labeled "cpu" which is an 8 pin that can be splitted in 2x4pins. https://images2.imgbox.com/f5/54/Hh4X4LUU_o.jpg ºShould I use one of this 4 pins of the "cpu cable" on the 4 pin one, and then use a 8pin "type 4 pcie labeled" cable for the 8 pin connector? (in one of the ends of this last cable, one of the pins is empty, but I think its a ground. Would it work?) https://images2.imgbox.com/63/ee/ne7yupTO_o.jpg Thanks for your help! Link to comment Share on other sites More sharing options...
Corsair Mike Posted December 29, 2017 Share Posted December 29, 2017 Hi, The single 8 Pin (split 4 pin) should be enough to power that CPU, Generally the additional 4 pin connector is for stability when overclocking. Check the owners manual that came with your board to be sure. As far as the PCIe cable goes, it is keyed so that you can't plug them into the CPU power connector because they have a different pin out to the CPU cable. If the motherboard requires the secondary 4 pin I would use a second CPU type 4 cable for that power connector. Link to comment Share on other sites More sharing options...
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