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Do I need 12 pin CPU power?

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Posted · Original PosterOP

So I am going to be building a new Ryzen system soon so I wanted to organize everything on PC Part Picker and I saw that my PSU was incompatible with my ASUS X570 P motherboard because it needs additional 4 pin 12v power next to the 8 pin CPU connector. I have never saw this before and was wondering if I should get a PSU with this specifically or if it’s okay to use an adapter which for some reason my old PSU on my other system had. Thanks. 

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idk man. Mine also comes with a 4 pin but my psu dont come with any thing like it. PC runs just fine.

PC specs:

Ryzen 9 3900X overclocked to 4.3-4.4 GHz

Corsair H100i platinum

32 GB Trident Z RGB 3200 MHz 14-14-14-34

RTX 2060

MSI MPG X570 Gaming Edge wifi


Samsung 860 EVO 500GB

2 TB WD hard drive

Corsair RM 750 Watt


Razer Ornata Chroma

Razer Firefly 

Razer Deathadder 2013

Logitech G935 Wireless

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Not required. Just plug in the 8pin EPS12V connector. The optional 4pin connector can be left empty.

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x8GB 3000MHz G.Skill Ripjaws 5 | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Corsair H100i AIO | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB | HDD: Seagate Ironwolf 8TB + 2x Seagate Ironwolf 6TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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Posted · Original PosterOP

Are you 100% positive? Sorry I really don’t want to get this wrong and have to buy another. I do have an adapter but I don’t know if that could impact performance some how.  

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A single eight pin EPS12 connector is rated for 384 Watts. No AM4 CPU can use more power that that on ambient cooling. The extra four pin is not required.

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