Power suply knowledge

[Silotero]

J am planning on building my first PC and J am now getting into the power supply and all of the cables. Most of the information J got from Youtube but J have a problem.

In all of the videos plugging in the main motherboard cable is said that it is a 24 pin cable. But when J look up the power supplies that are fully modular it says that the

motherboard cables are 10 pin and 18 pin ( for example EVGA - SuperNOVA G3 750W 80+ Gold Certified Fully-Modular ATX Power Supply)

Can someone explain to me what it is all about?

[seon123]

The PSU side has more pins than the motherboard side. It has extra pins for voltage sensing. 

[Fasauceome]

The pin count for a modular PSU is not equal on both sides. It'll be a 10 pin to 24 pin or an 18 pin to a 24 pin. 24 pin will go into motherboard, and other side will go to PSU.

 

Also, why use J instead of I?

[Silotero]

Okay than is good to know but if I want to plug in the cables how do I know which pins to connect for example all from the 10 pin and some from the 18 pin on the PSU or the other way around?

 

 

 

Also I don't know why I used J instead of I

[Guest]

1 hour ago, fasauceome said:

 

Also, why use J instead of I?

Regional keyboard? 

[Silotero]

5 minutes ago, jonnyGURU said:

Regional keyboard? 

I don't think so I just got used to doing it and didn't really think about it I am gonna have to change my habbit

[OrionFOTL]

29 minutes ago, Silotero said:

Okay than is good to know but if I want to plug in the cables how do I know which pins to connect for example all from the 10 pin and some from the 18 pin on the PSU or the other way around?

 

 

 

Also I don't know why I used J instead of I

You plug all the pins, you don't leave anything hanging.

[Silotero]

5 minutes ago, OrionFOTL said:

You plug all the pins, you don't leave anything hanging.

So it doesn't matter which way I plug the pins in, yes?

[OrionFOTL]

There's only one way to plug the pins. Like you already said, there are 10pin and 18pin plugs on the PSU, and a 24pin plug on the motherboard. The cable has a 10pin and 18pin connector on one end, and a 24pin one on the other end. What other way to connect them would there be that you're concerned about?

[Silotero]

2 minutes ago, OrionFOTL said:

There's only one way to plug the pins. Like you already said, there are 10pin and 18pin plugs on the PSU, and a 24pin plug on the motherboard. The cable has a 10pin and 18pin connector on one end, and a 24pin one on the other end. What other way to connect them would there be that you're concerned about?

Aaaaa what you said just explained a lot to me beacuese I thought that the pins have to match each other like 24 pin on the motherboard and a 24 pin on the PSU but if that is not the case than I think I now know everything I need.

 

Thanks a lot guys