GTX 690 - Which DVI ports for single and dual monitors?

[euphoria4949]

Hi everyone, I'm kind of embarrassed to be asking this as I really should know 100% by now

Anyway my question is about which DVI ports I should be using on my 690. I should also add that it is a single 690 and multi-GPU mode is always enabled.
So I've had the 690 for a few months now and I've always used DVI port 1 for a single monitor as shown here:



And occasionally I plug a second monitor (TV) in, when I do, I use DVI ports number 2 and 3:



I thought these were the correct ports to use, but I recently watched a video on YouTube of someone doing a review of the 690 and he stated quite adamantly that the correct port to use for a "single" monitor was port number 2:



I tried asking on the Nvidia forum but everyone seemed to have different opinions on which ones to use, so now I am completely confused :-\

Would really appreciate a bit of help with this please.
Thanks

 

[chrispyone]

I would very much like to know the answer to this as well please as I have never been compltely sure which ones to use..

 

[euphoria4949]

I would very much like to know the answer to this as well please as I have never been compltely sure which ones to use..

May I ask what DVI ports you use?

 

[chrispyone]

sorry i didn't see your reply. i use the same port as you number 1 the pinky color one in your pics.