[SOLVED] Can you use a single 8 pin power cable with 2 6+2 connectors on a two 8 pin gtx 1070 ti?

[cdoge88]

I have a gtx 1070 ti which I wish to plug into my PSU, and I have a single 8 pin power cable with 2 6+2 connectors on the end. Could I plug both 6+2 pin cables in and not have to use a second port on my psu, or do I have to use 2 separate cables entirely. I have another evga variant of the same card that only requires 1 8 pin connector, so I'm thinking that one cable with 2 connectors would work, but I don't want to under-volt it and damage it.

 

[Zerk2012]

I have a gtx 1070 ti which I wish to plug into my PSU, and I have a single 8 pin power cable with 2 6+2 connectors on the end. Could I plug both 6+2 pin cables in and not have to use a second port on my psu, or do I have to use 2 separate cables entirely. I have another evga variant of the same card that only requires 1 8 pin connector, so I'm thinking that one cable with 2 connectors would work, but I don't want to under-volt it and damage it.

Yes should be no problem.
My Seasonic says 225 watts per cable.

 

[cdoge88]

Yes should be no problem.
My Seasonic says 225 watts per cable.

I have a 750w cooler master 80+ gold, do you think It would be the same case there, and does it say on the psu itself how many watts per cable?? Also, I'm using cables that didn't originally come with the psu, so I don't know if that would have an impact or not.

 

[Zerk2012]

I have a 750w cooler master 80+ gold, do you think It would be the same case there, and does it say on the psu itself how many watts per cable?? Also, I'm using cables that didn't originally come with the psu, so I don't know if that would have an impact or not.

You should be fine with one cable.

 

[cdoge88]

You should be fine with one cable.

Could I use two separate cables as well?

 

[jay32267]

Could I use two separate cables as well?

Yes.
It's preferable.
More conductors are always better.
You get less voltage drop.

 

[Zerk2012]

Could I use two separate cables as well?

You can use 2 if you wish but it's has no advantages.

Those cards only have a TDP of around 180 watts.

Their will be no difference in volt drops as that can only change by adding longer wire.

 

[jay32267]

There is always an advantage to using more cables because there will always be less voltage drop because there will always be less resistance because there is a larger cross section of conductor.

V=IR

R is less....so V is less.

 

[Zerk2012]

There is always an advantage to using more cables because there will always be less voltage drop because there will always be less resistance because there is a larger cross section of conductor.

V=IR

R is less....so V is less.

And all that is going to = 0 difference.

The cables are designed to run that way. Your not really going to get voltage drop till you add extra cable and even then it would be not enough to even think about unless you just added a retarded amount.

Edit you don't think the PSU is going to be putting out a true 12 volts do you.

 

[Danra]

It is NOT a good idea to use a single cable split to two for PCIe. Many cables simply do not have fat enough wires to handle the load. Have you ever heard of a PC catching fire or hardware failing? There is a reason.