[SOLVED] Additional 4-pix ATX Power Connector

kimleyli

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Feb 5, 2020
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Hello, it's my first time building a pc. When I was picking a PSU (Seasonic Focus) at pcpartpicker website, it said my motherboard (Gigabyte Z390 UD) has an additional 4-pin ATX power connector. I've tried to search online, but I'm not really good at understanding those technical answers. What can I do? Any PSU recommendation for me? Thanks
(the pc specs: https://es.pcpartpicker.com/list/2tbt9G)
 
Solution
I think what OP is thinking of, is the 8 + 4 pin 12V EPS CPU power setup on the specific motherboard ( and a lot of other z390 motherboards).

Usually you don't need to connect the extra 4-pin (for a total of 12 pins), which means you only need the 4+4 pin (8 pin total ) connector on your Seasonic PSU.

The extra 4-pin 12V EPS is only required for CPUs with high power draw and for extra overclocking stability

An 9600K will do just fine with only the 8-pin (4+4 pin) connector attached

8 pins are required, the extra 4 pins are optional.
This is what you want to look for....

I'm using this as an example.

Here are the links to Seasonic units.
https://seasonic.com/consumer#

Here is the link to the Focus Plus Gold series.
https://seasonic.com/focus-plus-gold

You can click on specifications and choose the model in the upper right.

If you scroll down.....you will see there is a 24/20 pin for the motherboard.....then underneath you will see CPU 8/4 pins <<<<<<<<THIS IS THE 4 PIN ATX PLUG YOU ARE LOOKING FOR.....some motherboards can take 8 which is why it's either 4 or 8.
 
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I think what OP is thinking of, is the 8 + 4 pin 12V EPS CPU power setup on the specific motherboard ( and a lot of other z390 motherboards).

Usually you don't need to connect the extra 4-pin (for a total of 12 pins), which means you only need the 4+4 pin (8 pin total ) connector on your Seasonic PSU.

The extra 4-pin 12V EPS is only required for CPUs with high power draw and for extra overclocking stability

An 9600K will do just fine with only the 8-pin (4+4 pin) connector attached

8 pins are required, the extra 4 pins are optional.
 
Last edited:
Solution
I think what OP is thinking of, is the 8 + 4 pin 12V EPS CPU power setup on the specific motherboard.

Usually you don't need to connect the extra 4-pin (for a total of 12 pins), which means you only need the 4+4 pin (8 pin total ) connector on your Seasonic PSU.

The extra 4-pin 12V EPS is only required for CPUs with high power draw and for extra overclocking stability

An 9600K will do just fine with only the 8-pin (4+4 pin) connector attached

8 pins are required, the extra 4 pins are optional.


Thank you both for answering. I'm looking forward to overclocking the CPU, I'm guessing from your answer and some info on other websites, it's optional but it's not mandatory. Am I correct?
 
The eps aux power is used for extra 12v power needed for a second graphics card or for extra power for overclocking.
Most of the time more than a single 8 pin is not required.
One of your options is to buy the 750w version of the psu which includes two 4/8 pin eps cables.
A psu will only use the power demanded of it, regardless of the max power.
In time, your build may want a graphics card or processor that needs extra power.
 
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