Power Supply For 2080 ti

[JB780]

This may be a stupid question.

 

I have a Corsair RM750X and an Asus 2080ti that I am installing. Can I wire the GPU with 1 cable of the "daisy bridge" 2 x 8 connectors that came with the PSU or do I need to have two separate cables connected to the GPU and just tie the extra 8 pin connector on each back?

 

I've been trying to research this but I've been reading conflicting posts on if this is necessary or not and I'm not 100% sure on how the power supply functions with the daisy bridge cables.

[Fasauceome]

On a PSU as good as the RMX, you can use a single cable.

[JB780]

1 hour ago, fasauceome said:

On a PSU as good as the RMX, you can use a single cable.

Even if I'm planning to OC it? Do you know if the same amount of power so be drawn through 1 cable as two?

[Fasauceome]

1 hour ago, JB780 said:

Even if I'm planning to OC it? Do you know if the same amount of power so be drawn through 1 cable as two?

Should be fine

[jones177]

The difference between 2080 tis stock and overclocked is vast.

I got this off my two 2080 tis this morning. See image.

Without knowing the chip you have to take in to consideration that a 2080 ti can use from 260 to 373 watts under load. My FTW3 Ultra hit 387 watts this morning so the GPU-Z numbers are just estimates. 

 

If you consider that the specs of the PCIE slot is 75 watts and the two 8 pin power connectors are rated for 150 watts each, some 2080 tis max that out and more.

It is easier for me to just use two cables than look it up but it would be interesting to know for sure.

 

[JB780]

56 minutes ago, jones177 said:

The difference between 2080 tis stock and overclocked is vast.

I got this off my two 2080 tis this morning. See image.

Without knowing the chip you have to take in to consideration that a 2080 ti can use from 260 to 373 watts under load. My FTW3 Ultra hit 387 watts this morning so the GPU-Z numbers are just estimates. 

 

If you consider that the specs of the PCIE slot is 75 watts and the two 8 pin power connectors are rated for 150 watts each, some 2080 tis max that out and more.

It is easier for me to just use two cables than look it up but it would be interesting to know for sure.

 

So if the 8 pin connectors can supply 150 watts each then there would be no benefit to using 2 separate cables because the limiting factor is each connector only being able to supply 150?

[jones177]

1 minute ago, JB780 said:

So if the 8 pin connectors can supply 150 watts each then there would be no benefit to using 2 separate cables because the limiting factor is each connector only being able to supply 150?

Unless they draw more than spec.

Nvidia puts 150 watts as a standard for the board partners but 300 watts is possible with an LN2 bios. Nvidia cards have a lot of power balancing hardware so the connectors keep close to even in power draw.

The board partners seem to cheat but not by much.