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AX760 ATX 24PIN Power COnnecter Question - Why 2 Cables to 1 Pin?


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Hey Folks,


I purchased two of your AX760 PSUs.


I want to do a custom sleeving of the individual cables.

But i noticed there are only 23 pins in the 24pin connecter (yeah, I know the 24th 5V-pin was dropped from the ATX specs some time ago) but there are about 27 pins on the "PSU-Part" of the Cable (28pins but 1 is not used).


So about 4 Pins of the 24Pin Connecter are connected to 2 cables instead of only one cable.

Why are there 2 cables going to 1 pin?

Is it to increase the cross-section of the cable in order to avoid overheating of a thin cable?

In short: Why 23 pins to 27 pins instead of 23 to 23?


I need to know, because, from my aesthetic point of view, it doesn't look great to have 2 sleeved cables going in 1 pin... i would like to remove one of those if possible.


Thanks a lot in advance.


Excuse my language, I'm not a native speaker.

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Thank You Peanutz94,


but i cant see why the PSU should not function?


I can shortcut just 2 pins on that atx connector to get most likely any PSU up and running.

Assuming, now the PSU runs without a Motherboard. So in that case there are 2 pins on the psu, which are connected by an external 1metre long wire. U telling me it needs to have a 1 metre wire between 2 pins to run properly? No, sure not. But maybe it only runs when those two pins are connected? Ok, now that's possible. Still no need to do this externally. If it would need for those pins to be connected, Corsair / Sea Sonic could do this internally. Why would they do it externally? Wasting wire when they could solder it inside the PSU.


Sorry I was looking for a more detailed answer. I can see that it makes sense to use twice the wire in order to create more "bandwith" for the current and reduce heat. But e.g. this could be resolved by going with a thicker wire/cable on my side.


But just telling me it won't work will only make me more curious to try out running it without the second cable...


Anybody got a more electronically / technologically based reason for why there need to be 2 wires?


@ V-Man: Thanks but no thanks, I want my rig to be individual.

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I was just looking at that


So this is form Seasonics Platinum 760 so it should likely be equal.


Looking at it, u can easily find out, the only pins that are doubled on the PSU-Side of the connector are 12V, 5V and Ground (Count the reds, yellows and blacks --> Mainboard: 5 red, 2 yellow, 8 black | PSU: 6 red, 3 yellow, 10 black). So it is very likely, that one 12V, one 5V and two Grounds are double-wired. Double-wiring something, that is basically connected to the same source (Single Rail PSU?) makes only sense in order to deliver more cable cross-section for more current or redundancy. Compare to 6Pin / 8Pin PCI-E, 8Pin only enables more current at lower resistance/heat.


I really think that's all to it. But it would be nice to get some "Offical Statement" regarding this.


(well on the other hand i don't know if this image at OCN is 100% true)



@JKeifer, yeah thanks. I'd guess you are right. Would still feel better to get something official. I know it might void warranty, so the risk is on me, but with an engineer telling it's only for current-handling I will take that risk gladly.

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No worries. Maybe I am making it sound too simplistic for what you are trying to do but the other thought I had was why not put a single piece of sleeving around both of the wires on the four "offending" wires?


(P.S. Corsair hardware engineers don't frequent the forum so you will probably not get an engineer to espouse modifying their product.)

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