680 SLI: Best configuration? (1 x blower & 1 x open air)

[PandaAttack1]

Hello All!

Long time lurker, first time poster here. o7

I recently purchased 2 x 680s.

Card 1: http://www.pointofview-online.com/showroom.php?shop_mode=product_detail&product_id=335

Card 2: http://www.inno3d.com/products_detail.php?refid=70

I am building everything into an Antec case I already have. Its slightly bigger than my current BitFenix Shadow case.

I will fit everything on a AsRock z87 Fatl1ty Killer motherboard.

Now my question is, which card should go into slot 1, and which card in slot 2?

I plan on setting my case up as follows:

 

So, should the blower go in gpu 1 and the ope air in gpu 2?

There is also place for a 120mm fan on the side panel. I am am planning on pushing air in through there, so that the psu can get some cold air.

Any thoughts or ideas?

[Tedster]

I think I would have the blower style card on the bottom, as long as your CPU temps are going to be fine.

[samcool55]

blower bottom, blower ones don't cool that well compared to open cards.

[Interfectorem]

Definitely put the blower style card on the top since it's less affected by restricted air access. Then bu the open-air card on the bottom

[The Official Czex]

Definitely put the blower style card on the top since it's less affected by restricted air access. Then bu the open-air card on the bottom

 

This. Exactly this. Linus recently did a video on this, too.

[PandaAttack1]

Thanks guys!

Will test the blower style on top when I get my new board tomorrow.

[App4that]

It's not so much the air restriction that increases the top cards temperature, it's that it's pulling hot air off the bottom card. If I disable crossfire my top card runs at normal temperature, enabling crossfire raises the temperature 10c or more. I would put the blower on the bottom.

I should edit that if one card has a back plate it should go on the bottom to protect the top card better from the heat it puts out.

[PandaAttack1]

Thanks! 

Coincidently, the open air design card does have a back plate.

I will try the blower on the top slot first and see how it goes.