SLI & Case Question

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ed321
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Joined: 06/25/2012
Posts: 2

I am planning to build a pretty high specified machine and making it small would be a huge benefit; of course if it is safe.

The sort of Spec I would be looking at is:

i7 3960x
Asetek 545LC CPU cooling
2x GTX 670 SLI
16GB DDR3 1866Mhz Memory
Rampage IV Gene
~1000Watt PSU

Basically I have never had a need for SLI until now and I don't really know enough about it to make a good decision. My main concern is if I would put these parts into the NZXT Vulcan case would it really run too hot(around the graphics cards). I have seen pictures with 2 graphics cards placed in such a case, but I don't know if that is enough to go by. They are mounted very close in PCI-E slots next to one another which is actually how it seems people are mounting them in any cases. To me that looks like not only in the Vulcan but in any case hardly any air flow would reach the card in the top slot. Based on perhaps my inexperience or assumptions, I don't really see why in the Vulcan that not enough air would be fed to the cards through the front intake as such an airflow design is proven successful in larger cases. Also if this were to work would it be better to use EVGA superclocked cooling variants or the ASUS Direct CU II, the latter looking as if it would maybe spread unwanted warm air around the case (despite in general cooling better in regular scenarios), with the less enclosed cover around the card.
I can of course just take a normal mid tower sized case like Antec 902 V3 for example, but it would be nice, if I can, to make it small and carriable.

Thanks for any helps!

david179057
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Joined: 01/15/2012
Posts: 208

i would go for a 3930k unless your going do A LOT of overclocking with insane cooling the 3960x is basically a highly binned 3930k

Asus P8P67 Deluxe : i7 2600k : Corsair Vengeance 8 GB 1600
Asus GTX 560 Direct Cu II OC : Corsair H100
Kingston Hyper X 3K 120 GB : WD Caviar Black 1 TB : Windows 7 Home Premium
OCZ ZT 750W PSU : CM 690 II

Razear
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Joined: 12/30/2008
Posts: 1122

Whenever you are putting video cards in a SLI/CF, they will be sandwiched together so they will be less able to intake cool air from the fans compared to just a single card configuration. Some cards come with external exhaust brackets that allow for further heat dissipation. This will help slightly but it is more important to ensure the case has adequate cooling. Cards with aftermarket coolers should certainly run at lower temps, it would be good idea if you are looking to go with multiple cards and/or overclocking.

ed321
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Joined: 06/25/2012
Posts: 2

Yes I have been thinking about getting the 3930k instead so that is probably good advice.

Thanks for the information about cards I have seen some setup with them not totally squashed up, with one card slot gap between to allow more air space. Seems like a good idea but that would confirm the necessity of the bigger case and to allow for this gap to buy the Rampage Formula instead.

But since you say it is regular to have them sandwiched so close what do you think about it in the Vulcan case?

david179057
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Joined: 01/15/2012
Posts: 208

yes if your going with that beast of a config you probably be better off with a atx mobo and mid/full tower case