Which PCI-E slots to use?

[ArCElM]

LARGE.

I am currently using these slots for my Soundcard and GPU



A little tight, but no problems. I am wondering is this the BEST option? and is it the only option?

I see a nice white PCI-E slot there which I would love to put my GPU in, but I am unsure if it will hit the performance in some hidden way.

Thanks very much.

EDIT: Never mind the manual says use the Blue slot for the GPU to get better performance.

What about my Soundcard though, is there anywhere I could put it (apart from up my ass or in the bin) which would have no negative consequences and open up space a bit?

Cheers.