[SOLVED] Custom sleeving pinout question

[DividedByZero]

I'm using a corsair RM850 black label and intend to create custom sleeved cables for them so I did some measurements on the old cables. The 24 pin one was a peculiar one as it had an 18 pin and a 10 pin on the power supply side. My measurements showed that those extra 4 pins were +3.3V, +5V, +12 and Ground. They were put in parallel on the 24 pin side having used 2 wires in one pin. Is there any point in doing this other than creating a proprietary cable or splitting the current among the two? Will it hurt if I just leave these out as it won't changes the voltages/signals on the motherboard side?

Edited December 20, 2019 by DividedByZero
Question was solved

[seon123]

They are Vsense wires. The PSU uses them to measure the voltage on the component side, so it can regulate the voltages more accurately. 

[DividedByZero]

11 hours ago, seon123 said:

They are Vsense wires. The PSU uses them to measure the voltage on the component side, so it can regulate the voltages more accurately. 

I don't see all that much purpose in them. Since they're sense wires I assume they'll have to be connected? If that's the case I'll just bridge them on the PSU side. Having 2 wires in one crimp on the 24pin will look pretty ugly after cable sleeving.

[seon123]

9 minutes ago, DividedByZero said:

I don't see all that much purpose in them. Since they're sense wires I assume they'll have to be connected? If that's the case I'll just bridge them on the PSU side. Having 2 wires in one crimp on the 24pin will look pretty ugly after cable sleeving.

The point of measuring the voltage on the component side instead of on the PSU side is that the it takes the resistance of the cable out of the equation.
I believe you should be able to just leave them unconnected, as if they were type 3 cables.

@jonnyGURU

[DividedByZero]

1 hour ago, seon123 said:

The point of measuring the voltage on the component side instead of on the PSU side is that the it takes the resistance of the cable out of the equation.
I believe you should be able to just leave them unconnected, as if they were type 3 cables.

@jonnyGURU

Well with a 15AWG wire and such a short run the voltage drop won't be that severe that it would matter. That's kinda what I meant. Voltages sensing will always matter because under heavy load it can adjust the voltage back up. I doubt I can just leave them unconnected as the PSU will probably think no voltage is going out and probably disable output.

Thanks for the help though.

[Guest]

You can leave those wires off altogether.  The only side effect is going to be slightly poorer voltage regulation.

 

[DividedByZero]

4 minutes ago, jonnyGURU said:

You can leave those wires off altogether.  The only side effect is going to be slightly poorer voltage regulation.

 

Ah alright thanks. Shouldn't matter though.

[Guest]

19 hours ago, DividedByZero said:

Ah alright thanks. Shouldn't matter though.

Still well within Intel specs.