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Extra 4pin atx power connector

JPenninger

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So my motherboard has an 8-pin 12v connector + an additional 4 pin atx power connector.
My PSU came with 2 detachable 8-pin connector (4+4).
Can I use the 2 cables? 8 pin, then detach the second one and connect the 4 pin connector.
This is an AMD Ryzen 3800x proccessor.
 
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Sure, let's do that (as long as the connectors can be split, they were designed with that in mind)
 
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Not sure exactly what you're describing but pay attention to the pin shapes. Don't force anything
 
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Designed for use when overclocking or high end CPUs for stable power delivery.
 
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