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[TS] Puget dissects vertical vs. horizontal chassis cooling - Page 3

post #21 of 93
Quote:
Originally Posted by Blameless;14537927 
Obvious conclusions are obvious.





Heat doesn't have a preference, hot/less buoyant air does.

With little gap between the cards, orientation is irrelevant.

I would be quite amazed if there was any difference in multi-GPU cooling if you took your case and flipped it over or rotated it 90 degrees (assuming no intakes/exhausts were blocked).

I have multi gpu in an inverted case, def makes no difference. I even got the reference designed cooler to match but think I should have gotten a dual fan card instead

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post #22 of 93
Quote:
Originally Posted by i_hax;14537968 
Very true. My GTX280 developed a curve in the backplate because of being horizontal...

Yep, my tri-slot 570 benefits from the vertical orientation.

On another note, my thoughts:
Quote:
I owned a Lian Li X1000 and Lian Li V1020R. Both cooled on par with my FT02. Why? because the fans were in similar placement to the motherboard. The fans in each of these cases are very close to the motherboard which equals more efficient cooling. So the statement of rotated motherboards having better cooling isn't entirely true.

But, the features of the rotated motherboard out weigh the traditional ATX box.

Positive Air Pressure: The FT02 is almost dust free in kept in the right environment. The X1000 and V1020R intakes dust at an alarming rate when compared to the FT02. I've used my FT02 since January and there isn't a single layer of dust in my case after eight months.

Access to I/O panel: The rotated motherboard allows me to access all of my cables without reaching behind or moving the PC case. Instead of only have "immediate access" to only a few front panel USB ports, I'm able to use all of my USB ports(front panel and motherbaord) without hassle.

Heavy GPUs: The rotated motherboard allows the GPU to hang from the top of the case, rather than your motherboard supporting the weight.

Height: You're able to install full tower components in a case that's less than 20" tall. Big plus.

Build Quality: I'm sure we already know Silverstone makes some of the most sturdiest cases on the market.

Set Cost: No need to buy additional fans!!!! Many cases with the traditional layout need extra fans to achieve positive air pressure or better cooling. For multi-GPU systems, fans are already in placed underneath them to properly blow air across the video cards, no side/auxiliary fan needed. Always add the price of your fans and mods, you'll see that a better case could have been purchased with the same amount of money.

Those are just a few benefits of the 90 degree rotation, along with excellent air cooling.
If you look at it as a total package, you're getting a lot for your money.
Edited by WorldExclusive - 8/10/11 at 9:24pm
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post #23 of 93
Quote:
Originally Posted by reflex99;14537490 
Veritical orientation takes stress off the PCIE slots since gravity isn't pushing on them anymore

True. However, this article is specific to cooling and only touches on other advantages/disadvantages. The point of the article is to say that interior layout has more to do with cooling than orientation of the airflow, which is completely true and finally substantiated by empirical evidence from a reputable source and not just some dude on a tech forum.
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post #24 of 93
Quote:
Originally Posted by Riou;14535132 
Convection is only a significant factor with no forced airflow in a desktop (no fans). They should also test with top intake and bottom exhaust to see if there is really a difference.

I was running a custom WC loop a few years back that did just that using a NZXT Tempest case... I had the rear vent & the 2 top vents as intakes (blowing cooler air through my rad) and vented it out the front. I can't remember specifics (as to rpms the fans ran at, types of fans used, etc)
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post #25 of 93
Top intake can actually work better than top exhaust in some cases.
post #26 of 93
As was kind of hit on already, why are the top cards always the hottest in a multi-GPU setup if convection plays no role? I can switch my two cards around right now, and guess which will then become the hottest?

If we're calling this fact, then we have two facts having a stare down right now.
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post #27 of 93
Quote:
Originally Posted by Kaldari;14540386 
As was kind of hit on already, why are the top cards always the hottest in a multi-GPU setup if convection plays no role? I can switch my two cards around right now, and guess which will then become the hottest?

If we're calling this fact, then we have two facts having a stare down right now.

Because the top card has its intake blocked while the bottom card is wide open. Also nobody is claiming it plays "no role".
post #28 of 93
I wondered. Glad to hear its all shenanigans... I didn't care for the idea of a shifted mobo. lol.
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post #29 of 93
Quote:
Originally Posted by TFL Replica;14540571 
Because the top card has its intake blocked while the bottom card is wide open.
That's where you're wrong. There's a sound card in between them that doesn't come close to extending over the bottom card's intake. Nothing is blocked.
Quote:
Originally Posted by TFL Replica;14540571 
Also nobody is claiming it plays "no role".
Could've fooled me.

It's obvious that convection plays a big role with video cards that get extremely hot under load being in proximity to each other. Also saw my CPU temps go something like 5C or more when I put a slot cooler over the top card to blow rising heat out if the case.

I could get all temps lower and the card temps closer together if I ran all of my 7 2k RPM case fans at max, but that isn't the point. Nobody wants to listen to those fans running full bore all the time.

I've seen rising heat make a difference in my own case in different situations, so I don't care what any study says.

Even if we assume that what I have seen is due to the overall direction of airflow caused by my fans, that still doesn't negate the benefit of a vertical motherboard. Why do so many tests show benefit in cooling with the Raven series with a theoretically worse fan setup if we turned it horizontal? Voodoo? It has one exhaust fan. So we just need some more holes punched in the back of traditional cases and walla?
Edited by Kaldari - 8/10/11 at 11:58pm
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post #30 of 93
The vertical orientation of the FT02/RV02 may not have an advantage due to convection, but I'd love to see anybody try to fit 3X 180mm fans blowing in the same direction in a horizontal configuration. It's not the vertical orientation that matters. It's the fact that there are 3 huge fans all working together to turn the case into a virtual wind tunnel. You don't have fans all facing 90 degrees to each other stirring the hot air around. The air moves through the case in an orderly fashion.

" Puget highlighted some potential disadvantages for vertical cases: they're dust magnets, and they're more prone to compatibility issues than their horizontal counterparts."

How so? The FT02 can fit the longest video cards. It also has dust filters on all fans. I have been absolutely amazed at how clean my rig has stayed over the past year. I call BS on this statement.
Edited by Epitope - 8/11/11 at 12:07am
    
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