SLI - How to choose the primary GPU

[Random Guy]

I was wondering if anyone knew how to choose which GPU in an SLI conifguration will be the Primary one?

I was wondering if this something that can only be done in BIOS or if it can be done from the Nvidia Contorl Panel or a Windows menu....

Thanks in advance!

 

[Skyrocket]

Whichever u plug ur monitor in.

 

[Arcane]

The primary GPU is the card in the (first) primary slot on the motherboard, afaik this is set in stone.

 

[Random Guy]

Whichever u plug ur monitor in.

I don't think this is right. If I plug in my card to the second GPU I am pretty sure it will not display anything.

The primary GPU is the card in the (first) primary slot on the motherboard, afaik this is set in stone.

Aw nuts! Surely there is a way to change this?

 

[Arcane]

What is it you are trying to achieve? I'm guessing it's running SLI but having the primary somewhere further down the board?

 

[Random Guy]

What is it you are trying to achieve? I'm guessing it's running SLI but having the primary somewhere further down the board?

Basically, I want an easy way to test the second card in my SLI rig, just for the purposes of benchmarking against my first one (which is an OC version).

 

[Arcane]

I don't think you can do it unfortunately, some of the high end boards let you turn slots off but I don't know of any that'll allow you to change the primary, might be worth a look in the bios though, you might be able to switch it there and disconnect the power plugs on the primary card.

 

[BigBruiserAl]

Whichever u plug ur monitor in.

Incorrect

Some of the high end boards let you turn slots off but I don't know of any that'll allow you to change the primary, might be worth a look in the bios though.

Correct some selected boards let you choose as an example i think x58 UD7's and it is in the bios