GPU - Cable and PSU Compatibility

[FitzyPC]

I’ve just brought a used GPU ASUs GTX 1080 and it’s got 2 connection ports on the side 8 pin and 6 pin, my PSU only has 1 PCIE 8 pin port, any advise on which cable I need or if the PSU is compatible would be great.

 

[mickyflinn]

Hi and welcome.

What PSU do you have make and model?

 

[Tetras]

any advise on which cable I need or if the PSU is compatible would be great.

Does your PSU only have 1 connector on the cable, or 2 connectors on the cable?

If it has 2 connectors, you can still use it. There is usually a split where you can "snap off" or slide off 2 pins from the 8, to make 6.

 

[FitzyPC]

Hi and welcome.

What PSU do you have make and model?

C750M Corsair

 

[FitzyPC]

Does your PSU only have 1 connector on the cable, or 2 connectors on the cable?

If it has 2 connectors, you can still use it. There is usually a split where you can "snap off" or slide off 2 pins from the 8, to make 6.

And it wouldn’t matter that there’s only a 8 pin in the PSU but 14 in theGPY?

 

[Tetras]

And it wouldn’t matter that there’s only a 8 pin in the PSU but 14 in theGPY?

Yes, it would matter. I'm not sure you understand my question.

You have one PCIE cable, right? Does it have 2x 8-pin connectors on the device-end, or just 1x 8-pin connector?

C750M Corsair

I'm not aware of any Corsair PSU with this model number, do you mean CX750M?

 

[FitzyPC]

Yes, it would matter. I'm not sure you understand my question.

You have one PCIE cable, right? Does it have 2x 8-pin connectors on the device-end, or just 1x 8-pin connector?


I'm not aware of any Corsair PSU with this model number, do you mean CX750M?

Sorry yes CX750, so PSU side it has 8 pin GPU side it has 2 4+2 connectors

 

[mickyflinn]

C750M Corsair

Do you mean cx750m ?

The non modular version has 2x 8pin on a single cable while the modular version has 4x 8pin 2 cables.

 

[FitzyPC]

It’s entirely possible that I may have discarded that cable when I originally did the build can you point me in the direction of a replacement

 

[Tetras]

Sorry yes CX750, so PSU side it has 8 pin GPU side it has 2 4+2 connectors

I don't think there is such thing as a 4+2? But there is a 6+2. If you have 2x 6+2, it should work fine.

 

[FitzyPC]

I don't think there is such thing as a 4+2? But there is a 6+2. If you have 2x 6+2, it should work fine.

Sorry yes 8 pin in the PSU and then the other end is 2 x 6+2 connections. Give the GPU is 8 pin and 6 pin will it matter there’s only 8 pin on the PSU

 

[mickyflinn]

Sorry yes 8 pin in the PSU and then the other end is 2 x 6+2 connections. Give the GPU is 8 pin and 6 pin will it matter there’s only 8 pin on the PSU

This is all you need just use 8 pin and the 6pin leaving aside the extra 2pins if they don't detach it should still fit leaving 2 pins unconnected..

 

[FitzyPC]

This is all you need just use 8 pin and the 6pin leaving aside the extra 2pins if they don't detach it should still fit leaving 2 pins unconnected..

So I don’t need more than the 4+4 in the PSU despite there being 4+4 and 3+3 in the GPU?

 

[Tetras]

The power draw on a 1080 is pretty modest, it doesn't 'need' the additional 6 pin anyway.