ASROCK Fatal1ty X470 Gaming Motherboard CPU Power Connections

Feb 10, 2019
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I have an ASRock Fatal1ty X470 Gaming motherboard and I am upgrading for the first time in several years and I need to know if I am supposed to use both of the CPU power hookups on the board? One is an 8pin CPU power plug and the other is a 4pin CPU power supply plug. I have a Corsair RM850X 850 watt power supply and it is capable of using both but I didn't know if maybe the 8pin is new style and the 4pin is for older power supplies? I don't want to mess anything up.
 

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