Can using extensions decrease voltage output?

[rudedog89]

If I use an extension cable for my 24 Pin, there should be no voltage lost due to length, right? Sorry if this is a stupid question.

 

[magda]

There are no stupid questions. People in other hand...

Resistance = resistivity × ( length / area )

So, if you have more wire length you will have more resistance, if you have more resistance you will have a slight voltage drop.
If don't want a voltage drop you will have to get a wire that has a bigger cross section area.

Are you planning to use a very long extension cable?

 

[rudedog89]

Well, it would be only an 8 inch extension, but, guess concerned about having the extra connector in the middle as I know that adds resistance as well.

 

[matt167]

Yes. Ohms law. But your resistance will change most with the extra set of connectors. Really not enough to say so

 

[tedych]

The mobo doesn't draw too much power from the 24 pin. Not really of any concern the very little voltage drop.

 

[SvenBent]

Well, it would be only an 8 inch extension, but, guess concerned about having the extra connector in the middle as I know that adds resistance as well.

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Dick joke created


well 8 inches is not tha tlong that like from here
|
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to here

or that what I tell my wife...



anyway
8 inche of wire should not do any effective difference.

 

[VanGoghComplex]

Technically yes, it will increase resistance and decrease voltage delivered to your mobo.

However, your wires warming up will do the same thing.

I wouldn't worry about it.

 

[rudedog89]

Ok thank you everyone. And sorry for the dick joke. Wasn't even thinking. =)

 

[Nanogrip]

For DC voltages inside a computer? Nah, never. Thin signal cables are different though, that's why IDE cables back then tend to be no more than a foot long.