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MSI GTX580 Twin Frozr II/ Best case airflow? - Page 2

post #11 of 16
you can get the HAF 932 or a Sniper and they will offer almost the same performance of the X
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post #12 of 16
Quote:
Originally Posted by Hanshin View Post
But with this VGA cooler, I wonder if the results are as good.

As the heat seems to be rejected in the case instead of the PCI slots side, I thought an exhaust side fan would be a good option... Maybe someone with the same cards have a successful configuration?
You are correct to note that the cooling design of your MSI GTX580 Twin Frozr II is a bi-directional design. It dumps half of its heat into the case via the card's front. The front VGA duct of the HAF-X will not help but will make worse the situation as it forces hot exhausted air back into the cards. For the same reason, front lower case fan should not intake air with high velocity.

IMHO, you need to make 2 provisions:-
1) a clear and distinct escape path for that internally dumped hot exhausted air, making sure these air do not go through the rad of the H50. (Solution suggested: a 'top exhaust' approach)

2) an extra supply of fresh ambient air to the 2 cards (especially the top card), particularly having more air getting into the gap between the 2 cards. (Solution: strong side panel 120mm fans)

Let me demonstrate these 2 using HAF 932 (which I am familiar with) as an example: (See pic below)
--H50 installed with its rad-fan at top rear position

--two 120mm fans installed at other top 2 positions

--main case intake fans are four 120mm fans at side panel. They supply ample fresh air (blue arrows in pic) to both cards and to the upper portion of case to go through H50 rad-fan (These 4 fans should be speed adjustable to achieve noise-performance balance at will)

--cards' front hot exhausted air will be sucked upward by the 2 top front fans

--case front lower 230mm fan spin slow and will cool (front blue arrows in pic) the HDDs. The warm air will follow the upward draft to the top

--install a slow spinning fan at case rear top for exhaust. Its function is to prevent any warm air (exhausted out of the case by the 2 cards and the PSU) to be 'drafted' into the case through the opening. It should not spin fast, or else it will compete for air with the 3 top fans.

Edited by windfire - 4/13/11 at 11:56pm
post #13 of 16
Quote:
Originally Posted by windfire View Post
You are correct to note that the cooling design of your MSI GTX580 Twin Frozr II is a bi-directional design. It dumps half of its heat into the case via the card's front. The front VGA duct of the HAF-X will not help but will make worse the situation as it forces hot exhausted air back into the cards. For the same reason, front lower case fan should not intake air with high velocity.

IMHO, you need to make 2 provisions:-
1) a clear and distinct escape path for that internally dumped hot exhausted air, making sure these air do not go through the rad of the H50. (Solution suggested: a 'top exhaust' approach)

2) an extra supply of fresh ambient air to the 2 cards (especially the top card), particularly having more air getting into the gap between the 2 cards. (Solution: strong side panel 120mm fans)

Let me demonstrate these 2 using HAF 932 (which I am familiar with) as an example: (See pic below)
--H50 installed with its rad-fan at top rear position

--two 120mm fans installed at other top 2 positions

--main case intake fans are four 120mm fans at side panel. They supply ample fresh air (blue arrows in pic) to both cards and to the upper portion of case to go through H50 rad-fan (These 4 fans should be speed adjustable to achieve noise-performance balance at will)

--cards' front hot exhausted air will be sucked upward by the 2 top front fans

--case front lower 230mm fan spin slow and will cool (front blue arrows in pic) the HDDs. The warm air will follow the upward draft to the top

--install a slow spinning fan at case rear top for exhaust. Its function is to prevent any warm air (exhausted out of the case by the 2 cards and the PSU) to be 'drafted' into the case through the opening. It should not spin fast, or else it will compete for air with the 3 top fans.
Awesome suggestion!! I am not the OP, but I have a Antec 1200 and I am going to install two 6970 Twin Frozr IIIs. So basically, I was going to have the same issue as the OP.

I was worried about my intake fans pushing hot air back into my GPUs... now based on your suggestion I will reduce my intake flow and use a more powerful side fan. +REP
post #14 of 16
Thread Starter 
Quote:
Originally Posted by windfire;13119642 
You are correct to note that the cooling design of your MSI GTX580 Twin Frozr II is a bi-directional design. It dumps half of its heat into the case via the card's front. The front VGA duct of the HAF-X will not help but will make worse the situation as it forces hot exhausted air back into the cards. For the same reason, front lower case fan should not intake air with high velocity.

IMHO, you need to make 2 provisions:-
1) a clear and distinct escape path for that internally dumped hot exhausted air, making sure these air do not go through the rad of the H50. (Solution suggested: a 'top exhaust' approach)

2) an extra supply of fresh ambient air to the 2 cards (especially the top card), particularly having more air getting into the gap between the 2 cards. (Solution: strong side panel 120mm fans)

Let me demonstrate these 2 using HAF 932 (which I am familiar with) as an example: (See pic below)
--H50 installed with its rad-fan at top rear position

--two 120mm fans installed at other top 2 positions

--main case intake fans are four 120mm fans at side panel. They supply ample fresh air (blue arrows in pic) to both cards and to the upper portion of case to go through H50 rad-fan (These 4 fans should be speed adjustable to achieve noise-performance balance at will)

--cards' front hot exhausted air will be sucked upward by the 2 top front fans

--case front lower 230mm fan spin slow and will cool (front blue arrows in pic) the HDDs. The warm air will follow the upward draft to the top

--install a slow spinning fan at case rear top for exhaust. Its function is to prevent any warm air (exhausted out of the case by the 2 cards and the PSU) to be 'drafted' into the case through the opening. It should not spin fast, or else it will compete for air with the 3 top fans.

Thank you for your explanation!

This case seems to provide a lot of cooling solutions, it's a very interesting option. redface.gif

Do you have a recommandation for the fans?

I found the case on Amazon.co.jp only for 230~$, as the stores in Osaka don't seem to sell it.
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Eva-00
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Samsung Original DDR3-1333 12GB (4GBx3) Crucial RealSSD 128GB Hitachi Deskstar 7k3000 Window 7 Ultimate 64-bits 
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post #15 of 16
Thread Starter 
Just a little update to say a big thanks to Windfire.

I updated my rig to the suggested configuration.

I now have a HAF932 with 4 CM's R4 Silent fans on the side panel, my H50 in push/pull on top with 2 San Ace 120, and 2 others R4 on top too.

My CPU is now 25/26°C idle and 52°C on load with Prime 95, and my two GTX580 are now 28/30°C idle on don't go over 60°C on games like Crysis 2 or Dragon Age 2 on load (with full settings @ 1080p) after few hours.

Thank you!
Eva-00
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Eva-00
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CPUMotherboardGraphicsGraphics
i7 990x Extreme Asus Rampage III Extreme MSI N580GTX-TWIN FROZR II/OC MSI N580GTX-TWIN FROZR II/OC 
RAMHard DriveHard DriveOS
Samsung Original DDR3-1333 12GB (4GBx3) Crucial RealSSD 128GB Hitachi Deskstar 7k3000 Window 7 Ultimate 64-bits 
MonitorKeyboardPowerCase
LG E2750VR-SN Black 27" Logitech G510 Antec TruePower Quattro TPQ-1200-OC 1200w BitFenix Colossus Black 
Mouse
Logitech G9x 
CPUMotherboardGraphicsRAM
i7 4790k Maximus VI Formula EVGA Titan X Corsair Dominator Platinum 2400Mhz 
Hard DriveCoolingCoolingCooling
Corsair Neutron XT 960GB Hardware Labs Nemesis 360 GTX Hardware Labs Nemesis 360 GTX EK-Supremacy EVO - Nickel 
CoolingCoolingOSMonitor
EK-FC Titan X - Nickel EK-XRES D5 Windows 10 Dell U3415w 
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post #16 of 16
Quote:
Originally Posted by Hanshin View Post
Just a little update to say a big thanks to Windfire.

I updated my rig to the suggested configuration.

I now have a HAF932 with 4 CM's R4 Silent fans on the side panel, my H50 in push/pull on top with 2 San Ace 120, and 2 others R4 on top too.

My CPU is now 25/26°C idle and 52°C on load with Prime 95, and my two GTX580 are now 28/30°C idle on don't go over 60°C on games like Crysis 2 or Dragon Age 2 on load (with full settings @ 1080p) after few hours.

Thank you!
Good to hear it is performing!

Post a few pictures as I am sure many of us would love to see your rig.

And I will probably refer people to come here to look at your rig as it can be a 'Textbook' solution for those with internal exhausting cards.
Edited by windfire - 4/22/11 at 12:48am
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